mirror of https://gitee.com/bigwinds/arangodb
3633 lines
113 KiB
C++
3633 lines
113 KiB
C++
////////////////////////////////////////////////////////////////////////////////
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/// DISCLAIMER
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///
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/// Copyright 2014-2016 ArangoDB GmbH, Cologne, Germany
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/// Copyright 2004-2014 triAGENS GmbH, Cologne, Germany
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///
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/// Licensed under the Apache License, Version 2.0 (the "License");
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/// you may not use this file except in compliance with the License.
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/// You may obtain a copy of the License at
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///
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/// http://www.apache.org/licenses/LICENSE-2.0
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///
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/// Unless required by applicable law or agreed to in writing, software
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/// distributed under the License is distributed on an "AS IS" BASIS,
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/// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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/// See the License for the specific language governing permissions and
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/// limitations under the License.
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///
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/// Copyright holder is ArangoDB GmbH, Cologne, Germany
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///
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/// @author Jan Steemann
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////////////////////////////////////////////////////////////////////////////////
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#include "RestReplicationHandler.h"
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#include "ApplicationFeatures/ApplicationServer.h"
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#include "Basics/ConditionLocker.h"
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#include "Basics/ReadLocker.h"
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#include "Basics/VelocyPackHelper.h"
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#include "Basics/conversions.h"
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#include "Basics/files.h"
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#include "Cluster/ClusterComm.h"
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#include "Cluster/FollowerInfo.h"
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#include "Cluster/ClusterMethods.h"
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#include "GeneralServer/GeneralServer.h"
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#include "Indexes/Index.h"
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#include "Logger/Logger.h"
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#include "MMFiles/MMFilesLogfileManager.h"
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#include "Replication/InitialSyncer.h"
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#include "Rest/HttpRequest.h"
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#include "Rest/Version.h"
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#include "RestServer/DatabaseFeature.h"
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#include "RestServer/ServerIdFeature.h"
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#include "StorageEngine/EngineSelectorFeature.h"
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#include "StorageEngine/StorageEngine.h"
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#include "Utils/CollectionGuard.h"
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#include "Utils/CollectionKeys.h"
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#include "Utils/CollectionKeysRepository.h"
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#include "Utils/CollectionNameResolver.h"
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#include "Utils/OperationOptions.h"
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#include "Utils/StandaloneTransactionContext.h"
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#include "Utils/TransactionContext.h"
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#include "Transaction/Hints.h"
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#include "VocBase/LogicalCollection.h"
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#include "VocBase/replication-applier.h"
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#include "VocBase/replication-dump.h"
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#include "VocBase/ticks.h"
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#include <velocypack/Builder.h>
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#include <velocypack/Collection.h>
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#include <velocypack/Iterator.h>
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#include <velocypack/Parser.h>
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#include <velocypack/Slice.h>
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#include <velocypack/velocypack-aliases.h>
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using namespace arangodb;
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using namespace arangodb::basics;
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using namespace arangodb::rest;
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uint64_t const RestReplicationHandler::defaultChunkSize = 128 * 1024;
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uint64_t const RestReplicationHandler::maxChunkSize = 128 * 1024 * 1024;
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RestReplicationHandler::RestReplicationHandler(GeneralRequest* request,
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GeneralResponse* response)
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: RestVocbaseBaseHandler(request, response) {}
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RestReplicationHandler::~RestReplicationHandler() {}
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RestStatus RestReplicationHandler::execute() {
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// extract the request type
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auto const type = _request->requestType();
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auto const& suffixes = _request->suffixes();
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size_t const len = suffixes.size();
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if (len >= 1) {
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std::string const& command = suffixes[0];
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if (command == "logger-state") {
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if (type != rest::RequestType::GET) {
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goto BAD_CALL;
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}
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handleCommandLoggerState();
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} else if (command == "logger-tick-ranges") {
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if (type != rest::RequestType::GET) {
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goto BAD_CALL;
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}
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if (isCoordinatorError()) {
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return RestStatus::DONE;
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}
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handleCommandLoggerTickRanges();
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} else if (command == "logger-first-tick") {
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if (type != rest::RequestType::GET) {
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goto BAD_CALL;
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}
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if (isCoordinatorError()) {
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return RestStatus::DONE;
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}
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handleCommandLoggerFirstTick();
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} else if (command == "logger-follow") {
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if (type != rest::RequestType::GET && type != rest::RequestType::PUT) {
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goto BAD_CALL;
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}
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if (isCoordinatorError()) {
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return RestStatus::DONE;
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}
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handleCommandLoggerFollow();
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} else if (command == "determine-open-transactions") {
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if (type != rest::RequestType::GET) {
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goto BAD_CALL;
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}
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handleCommandDetermineOpenTransactions();
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} else if (command == "batch") {
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if (ServerState::instance()->isCoordinator()) {
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handleTrampolineCoordinator();
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} else {
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handleCommandBatch();
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}
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} else if (command == "barrier") {
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if (isCoordinatorError()) {
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return RestStatus::DONE;
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}
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handleCommandBarrier();
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} else if (command == "inventory") {
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if (type != rest::RequestType::GET) {
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goto BAD_CALL;
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}
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if (ServerState::instance()->isCoordinator()) {
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handleTrampolineCoordinator();
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} else {
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handleCommandInventory();
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}
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} else if (command == "keys") {
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if (type != rest::RequestType::GET && type != rest::RequestType::POST &&
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type != rest::RequestType::PUT &&
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type != rest::RequestType::DELETE_REQ) {
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goto BAD_CALL;
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}
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if (isCoordinatorError()) {
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return RestStatus::DONE;
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}
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if (type == rest::RequestType::POST) {
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handleCommandCreateKeys();
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} else if (type == rest::RequestType::GET) {
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handleCommandGetKeys();
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} else if (type == rest::RequestType::PUT) {
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handleCommandFetchKeys();
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} else if (type == rest::RequestType::DELETE_REQ) {
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handleCommandRemoveKeys();
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}
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} else if (command == "dump") {
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if (type != rest::RequestType::GET) {
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goto BAD_CALL;
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}
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if (ServerState::instance()->isCoordinator()) {
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handleTrampolineCoordinator();
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} else {
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handleCommandDump();
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}
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} else if (command == "restore-collection") {
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if (type != rest::RequestType::PUT) {
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goto BAD_CALL;
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}
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handleCommandRestoreCollection();
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} else if (command == "restore-indexes") {
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if (type != rest::RequestType::PUT) {
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goto BAD_CALL;
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}
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handleCommandRestoreIndexes();
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} else if (command == "restore-data") {
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if (type != rest::RequestType::PUT) {
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goto BAD_CALL;
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}
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handleCommandRestoreData();
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} else if (command == "sync") {
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if (type != rest::RequestType::PUT) {
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goto BAD_CALL;
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}
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if (isCoordinatorError()) {
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return RestStatus::DONE;
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}
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handleCommandSync();
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} else if (command == "make-slave") {
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if (type != rest::RequestType::PUT) {
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goto BAD_CALL;
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}
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if (isCoordinatorError()) {
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return RestStatus::DONE;
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}
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handleCommandMakeSlave();
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} else if (command == "server-id") {
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if (type != rest::RequestType::GET) {
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goto BAD_CALL;
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}
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handleCommandServerId();
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} else if (command == "applier-config") {
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if (type == rest::RequestType::GET) {
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handleCommandApplierGetConfig();
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} else {
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if (type != rest::RequestType::PUT) {
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goto BAD_CALL;
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}
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handleCommandApplierSetConfig();
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}
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} else if (command == "applier-start") {
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if (type != rest::RequestType::PUT) {
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goto BAD_CALL;
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}
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if (isCoordinatorError()) {
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return RestStatus::DONE;
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}
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handleCommandApplierStart();
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} else if (command == "applier-stop") {
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if (type != rest::RequestType::PUT) {
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goto BAD_CALL;
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}
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if (isCoordinatorError()) {
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return RestStatus::DONE;
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}
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handleCommandApplierStop();
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} else if (command == "applier-state") {
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if (type == rest::RequestType::DELETE_REQ) {
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handleCommandApplierDeleteState();
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} else {
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if (type != rest::RequestType::GET) {
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goto BAD_CALL;
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}
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handleCommandApplierGetState();
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}
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} else if (command == "clusterInventory") {
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if (type != rest::RequestType::GET) {
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goto BAD_CALL;
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}
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if (!ServerState::instance()->isCoordinator()) {
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generateError(rest::ResponseCode::FORBIDDEN,
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TRI_ERROR_CLUSTER_ONLY_ON_COORDINATOR);
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} else {
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handleCommandClusterInventory();
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}
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} else if (command == "addFollower") {
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if (type != rest::RequestType::PUT) {
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goto BAD_CALL;
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}
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if (!ServerState::instance()->isDBServer()) {
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generateError(rest::ResponseCode::FORBIDDEN,
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TRI_ERROR_CLUSTER_ONLY_ON_DBSERVER);
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} else {
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handleCommandAddFollower();
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}
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} else if (command == "removeFollower") {
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if (type != rest::RequestType::PUT) {
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goto BAD_CALL;
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}
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if (!ServerState::instance()->isDBServer()) {
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generateError(rest::ResponseCode::FORBIDDEN,
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TRI_ERROR_CLUSTER_ONLY_ON_DBSERVER);
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} else {
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handleCommandRemoveFollower();
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}
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} else if (command == "holdReadLockCollection") {
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if (!ServerState::instance()->isDBServer()) {
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generateError(rest::ResponseCode::FORBIDDEN,
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TRI_ERROR_CLUSTER_ONLY_ON_DBSERVER);
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} else {
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if (type == rest::RequestType::POST) {
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handleCommandHoldReadLockCollection();
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} else if (type == rest::RequestType::PUT) {
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handleCommandCheckHoldReadLockCollection();
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} else if (type == rest::RequestType::DELETE_REQ) {
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handleCommandCancelHoldReadLockCollection();
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} else if (type == rest::RequestType::GET) {
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handleCommandGetIdForReadLockCollection();
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} else {
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goto BAD_CALL;
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}
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}
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} else {
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generateError(rest::ResponseCode::BAD, TRI_ERROR_HTTP_BAD_PARAMETER,
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"invalid command");
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}
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return RestStatus::DONE;
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}
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BAD_CALL:
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if (len != 1) {
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generateError(rest::ResponseCode::BAD, TRI_ERROR_HTTP_SUPERFLUOUS_SUFFICES,
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"expecting URL /_api/replication/<command>");
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} else {
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generateError(rest::ResponseCode::METHOD_NOT_ALLOWED,
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TRI_ERROR_HTTP_METHOD_NOT_ALLOWED);
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}
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return RestStatus::DONE;
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}
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/// @brief comparator to sort collections
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/// sort order is by collection type first (vertices before edges, this is
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/// because edges depend on vertices being there), then name
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bool RestReplicationHandler::sortCollections(
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arangodb::LogicalCollection const* l,
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arangodb::LogicalCollection const* r) {
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if (l->type() != r->type()) {
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return l->type() < r->type();
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}
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std::string const leftName = l->name();
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std::string const rightName = r->name();
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return strcasecmp(leftName.c_str(), rightName.c_str()) < 0;
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}
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/// @brief filter a collection based on collection attributes
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bool RestReplicationHandler::filterCollection(
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arangodb::LogicalCollection* collection, void* data) {
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bool includeSystem = *((bool*)data);
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std::string const collectionName(collection->name());
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if (!includeSystem && collectionName[0] == '_') {
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// exclude all system collections
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return false;
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}
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if (TRI_ExcludeCollectionReplication(collectionName.c_str(), includeSystem)) {
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// collection is excluded from replication
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return false;
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}
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// all other cases should be included
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return true;
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief creates an error if called on a coordinator server
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////////////////////////////////////////////////////////////////////////////////
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bool RestReplicationHandler::isCoordinatorError() {
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if (_vocbase->type() == TRI_VOCBASE_TYPE_COORDINATOR) {
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generateError(rest::ResponseCode::NOT_IMPLEMENTED,
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TRI_ERROR_CLUSTER_UNSUPPORTED,
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"replication API is not supported on a coordinator");
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return true;
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}
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return false;
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief insert the applier action into an action list
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////////////////////////////////////////////////////////////////////////////////
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void RestReplicationHandler::insertClient(TRI_voc_tick_t lastServedTick) {
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bool found;
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std::string const& value = _request->value("serverId", found);
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if (found) {
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TRI_server_id_t serverId = (TRI_server_id_t)StringUtils::uint64(value);
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if (serverId > 0) {
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_vocbase->updateReplicationClient(serverId, lastServedTick);
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}
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}
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief determine the chunk size
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////////////////////////////////////////////////////////////////////////////////
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uint64_t RestReplicationHandler::determineChunkSize() const {
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// determine chunk size
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uint64_t chunkSize = defaultChunkSize;
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bool found;
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std::string const& value = _request->value("chunkSize", found);
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if (found) {
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// query parameter "chunkSize" was specified
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chunkSize = StringUtils::uint64(value);
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// don't allow overly big allocations
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if (chunkSize > maxChunkSize) {
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chunkSize = maxChunkSize;
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}
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}
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return chunkSize;
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief was docuBlock JSF_get_api_replication_logger_return_state
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////////////////////////////////////////////////////////////////////////////////
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void RestReplicationHandler::handleCommandLoggerState() {
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VPackBuilder builder;
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builder.add(VPackValue(VPackValueType::Object)); // Base
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MMFilesLogfileManager::instance()->waitForSync(10.0);
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MMFilesLogfileManagerState const s =
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MMFilesLogfileManager::instance()->state();
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// "state" part
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builder.add("state", VPackValue(VPackValueType::Object));
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builder.add("running", VPackValue(true));
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builder.add("lastLogTick", VPackValue(std::to_string(s.lastCommittedTick)));
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builder.add("lastUncommittedLogTick",
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VPackValue(std::to_string(s.lastAssignedTick)));
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builder.add("totalEvents", VPackValue(s.numEvents + s.numEventsSync));
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builder.add("time", VPackValue(s.timeString));
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builder.close();
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// "server" part
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builder.add("server", VPackValue(VPackValueType::Object));
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builder.add("version", VPackValue(ARANGODB_VERSION));
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builder.add("serverId", VPackValue(std::to_string(ServerIdFeature::getId())));
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builder.close();
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// "clients" part
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builder.add("clients", VPackValue(VPackValueType::Array));
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auto allClients = _vocbase->getReplicationClients();
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for (auto& it : allClients) {
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// One client
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builder.add(VPackValue(VPackValueType::Object));
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builder.add("serverId", VPackValue(std::to_string(std::get<0>(it))));
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char buffer[21];
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TRI_GetTimeStampReplication(std::get<1>(it), &buffer[0], sizeof(buffer));
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builder.add("time", VPackValue(buffer));
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builder.add("lastServedTick", VPackValue(std::to_string(std::get<2>(it))));
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builder.close();
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}
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builder.close(); // clients
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builder.close(); // base
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generateResult(rest::ResponseCode::OK, builder.slice());
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief was docuBlock JSF_get_api_replication_logger_tick_ranges
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////////////////////////////////////////////////////////////////////////////////
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void RestReplicationHandler::handleCommandLoggerTickRanges() {
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auto const& ranges = MMFilesLogfileManager::instance()->ranges();
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VPackBuilder b;
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b.add(VPackValue(VPackValueType::Array));
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for (auto& it : ranges) {
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b.add(VPackValue(VPackValueType::Object));
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b.add("datafile", VPackValue(it.filename));
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b.add("status", VPackValue(it.state));
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b.add("tickMin", VPackValue(std::to_string(it.tickMin)));
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b.add("tickMax", VPackValue(std::to_string(it.tickMax)));
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b.close();
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}
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b.close();
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generateResult(rest::ResponseCode::OK, b.slice());
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief was docuBlock JSF_get_api_replication_logger_first_tick
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////////////////////////////////////////////////////////////////////////////////
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void RestReplicationHandler::handleCommandLoggerFirstTick() {
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auto const& ranges = MMFilesLogfileManager::instance()->ranges();
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VPackBuilder b;
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b.add(VPackValue(VPackValueType::Object));
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TRI_voc_tick_t tick = UINT64_MAX;
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for (auto& it : ranges) {
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if (it.tickMin == 0) {
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continue;
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}
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if (it.tickMin < tick) {
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tick = it.tickMin;
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}
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}
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if (tick == UINT64_MAX) {
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b.add("firstTick", VPackValue(VPackValueType::Null));
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} else {
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auto tickString = std::to_string(tick);
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b.add("firstTick", VPackValue(tickString));
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}
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b.close();
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generateResult(rest::ResponseCode::OK, b.slice());
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief was docuBlock JSF_delete_batch_replication
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////////////////////////////////////////////////////////////////////////////////
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void RestReplicationHandler::handleCommandBatch() {
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// extract the request type
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auto const type = _request->requestType();
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auto const& suffixes = _request->suffixes();
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size_t const len = suffixes.size();
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TRI_ASSERT(len >= 1);
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if (type == rest::RequestType::POST) {
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// create a new blocker
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std::shared_ptr<VPackBuilder> input =
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_request->toVelocyPackBuilderPtr(&VPackOptions::Defaults);
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|
|
if (input == nullptr || !input->slice().isObject()) {
|
|
generateError(rest::ResponseCode::BAD, TRI_ERROR_HTTP_BAD_PARAMETER,
|
|
"invalid JSON");
|
|
return;
|
|
}
|
|
|
|
// extract ttl
|
|
double expires =
|
|
VelocyPackHelper::getNumericValue<double>(input->slice(), "ttl", 0);
|
|
|
|
TRI_voc_tick_t id;
|
|
StorageEngine* engine = EngineSelectorFeature::ENGINE;
|
|
int res = engine->insertCompactionBlocker(_vocbase, expires, id);
|
|
|
|
if (res != TRI_ERROR_NO_ERROR) {
|
|
THROW_ARANGO_EXCEPTION(res);
|
|
}
|
|
|
|
VPackBuilder b;
|
|
b.add(VPackValue(VPackValueType::Object));
|
|
b.add("id", VPackValue(std::to_string(id)));
|
|
b.close();
|
|
generateResult(rest::ResponseCode::OK, b.slice());
|
|
return;
|
|
}
|
|
|
|
if (type == rest::RequestType::PUT && len >= 2) {
|
|
// extend an existing blocker
|
|
TRI_voc_tick_t id =
|
|
static_cast<TRI_voc_tick_t>(StringUtils::uint64(suffixes[1]));
|
|
|
|
auto input = _request->toVelocyPackBuilderPtr(&VPackOptions::Defaults);
|
|
|
|
if (input == nullptr || !input->slice().isObject()) {
|
|
generateError(rest::ResponseCode::BAD, TRI_ERROR_HTTP_BAD_PARAMETER,
|
|
"invalid JSON");
|
|
return;
|
|
}
|
|
|
|
// extract ttl
|
|
double expires =
|
|
VelocyPackHelper::getNumericValue<double>(input->slice(), "ttl", 0);
|
|
|
|
// now extend the blocker
|
|
StorageEngine* engine = EngineSelectorFeature::ENGINE;
|
|
int res = engine->extendCompactionBlocker(_vocbase, id, expires);
|
|
|
|
if (res == TRI_ERROR_NO_ERROR) {
|
|
resetResponse(rest::ResponseCode::NO_CONTENT);
|
|
} else {
|
|
generateError(GeneralResponse::responseCode(res), res);
|
|
}
|
|
return;
|
|
}
|
|
|
|
if (type == rest::RequestType::DELETE_REQ && len >= 2) {
|
|
// delete an existing blocker
|
|
TRI_voc_tick_t id =
|
|
static_cast<TRI_voc_tick_t>(StringUtils::uint64(suffixes[1]));
|
|
|
|
StorageEngine* engine = EngineSelectorFeature::ENGINE;
|
|
int res = engine->removeCompactionBlocker(_vocbase, id);
|
|
|
|
if (res == TRI_ERROR_NO_ERROR) {
|
|
resetResponse(rest::ResponseCode::NO_CONTENT);
|
|
} else {
|
|
generateError(GeneralResponse::responseCode(res), res);
|
|
}
|
|
return;
|
|
}
|
|
|
|
// we get here if anything above is invalid
|
|
generateError(rest::ResponseCode::METHOD_NOT_ALLOWED,
|
|
TRI_ERROR_HTTP_METHOD_NOT_ALLOWED);
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief add or remove a WAL logfile barrier
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
void RestReplicationHandler::handleCommandBarrier() {
|
|
// extract the request type
|
|
auto const type = _request->requestType();
|
|
std::vector<std::string> const& suffixes = _request->suffixes();
|
|
size_t const len = suffixes.size();
|
|
|
|
TRI_ASSERT(len >= 1);
|
|
|
|
if (type == rest::RequestType::POST) {
|
|
// create a new barrier
|
|
|
|
std::shared_ptr<VPackBuilder> input =
|
|
_request->toVelocyPackBuilderPtr(&VPackOptions::Defaults);
|
|
|
|
if (input == nullptr || !input->slice().isObject()) {
|
|
generateError(rest::ResponseCode::BAD, TRI_ERROR_HTTP_BAD_PARAMETER,
|
|
"invalid JSON");
|
|
return;
|
|
}
|
|
|
|
// extract ttl
|
|
double ttl =
|
|
VelocyPackHelper::getNumericValue<double>(input->slice(), "ttl", 0);
|
|
|
|
TRI_voc_tick_t minTick = 0;
|
|
VPackSlice const v = input->slice().get("tick");
|
|
|
|
if (v.isString()) {
|
|
minTick = StringUtils::uint64(v.copyString());
|
|
} else if (v.isNumber()) {
|
|
minTick = v.getNumber<TRI_voc_tick_t>();
|
|
}
|
|
|
|
if (minTick == 0) {
|
|
generateError(rest::ResponseCode::BAD, TRI_ERROR_HTTP_BAD_PARAMETER,
|
|
"invalid tick value");
|
|
return;
|
|
}
|
|
|
|
TRI_voc_tick_t id =
|
|
MMFilesLogfileManager::instance()->addLogfileBarrier(minTick,
|
|
ttl);
|
|
|
|
VPackBuilder b;
|
|
b.add(VPackValue(VPackValueType::Object));
|
|
std::string const idString(std::to_string(id));
|
|
b.add("id", VPackValue(idString));
|
|
b.close();
|
|
generateResult(rest::ResponseCode::OK, b.slice());
|
|
return;
|
|
}
|
|
|
|
if (type == rest::RequestType::PUT && len >= 2) {
|
|
// extend an existing barrier
|
|
TRI_voc_tick_t id = StringUtils::uint64(suffixes[1]);
|
|
|
|
std::shared_ptr<VPackBuilder> input =
|
|
_request->toVelocyPackBuilderPtr(&VPackOptions::Defaults);
|
|
|
|
if (input == nullptr || !input->slice().isObject()) {
|
|
generateError(rest::ResponseCode::BAD, TRI_ERROR_HTTP_BAD_PARAMETER,
|
|
"invalid JSON");
|
|
return;
|
|
}
|
|
|
|
// extract ttl
|
|
double ttl =
|
|
VelocyPackHelper::getNumericValue<double>(input->slice(), "ttl", 0);
|
|
|
|
TRI_voc_tick_t minTick = 0;
|
|
VPackSlice const v = input->slice().get("tick");
|
|
|
|
if (v.isString()) {
|
|
minTick = StringUtils::uint64(v.copyString());
|
|
} else if (v.isNumber()) {
|
|
minTick = v.getNumber<TRI_voc_tick_t>();
|
|
}
|
|
|
|
if (MMFilesLogfileManager::instance()->extendLogfileBarrier(
|
|
id, ttl, minTick)) {
|
|
resetResponse(rest::ResponseCode::NO_CONTENT);
|
|
} else {
|
|
int res = TRI_ERROR_ARANGO_DOCUMENT_NOT_FOUND;
|
|
generateError(GeneralResponse::responseCode(res), res);
|
|
}
|
|
return;
|
|
}
|
|
|
|
if (type == rest::RequestType::DELETE_REQ && len >= 2) {
|
|
// delete an existing barrier
|
|
TRI_voc_tick_t id = StringUtils::uint64(suffixes[1]);
|
|
|
|
if (MMFilesLogfileManager::instance()->removeLogfileBarrier(id)) {
|
|
resetResponse(rest::ResponseCode::NO_CONTENT);
|
|
} else {
|
|
int res = TRI_ERROR_ARANGO_DOCUMENT_NOT_FOUND;
|
|
generateError(GeneralResponse::responseCode(res), res);
|
|
}
|
|
return;
|
|
}
|
|
|
|
if (type == rest::RequestType::GET) {
|
|
// fetch all barriers
|
|
auto ids = MMFilesLogfileManager::instance()->getLogfileBarriers();
|
|
|
|
VPackBuilder b;
|
|
b.add(VPackValue(VPackValueType::Array));
|
|
for (auto& it : ids) {
|
|
b.add(VPackValue(std::to_string(it)));
|
|
}
|
|
b.close();
|
|
generateResult(rest::ResponseCode::OK, b.slice());
|
|
return;
|
|
}
|
|
|
|
// we get here if anything above is invalid
|
|
generateError(rest::ResponseCode::METHOD_NOT_ALLOWED,
|
|
TRI_ERROR_HTTP_METHOD_NOT_ALLOWED);
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief forward a command in the coordinator case
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
void RestReplicationHandler::handleTrampolineCoordinator() {
|
|
bool useVpp = false;
|
|
if (_request->transportType() == Endpoint::TransportType::VPP) {
|
|
useVpp = true;
|
|
}
|
|
if (_request == nullptr) {
|
|
THROW_ARANGO_EXCEPTION_MESSAGE(TRI_ERROR_INTERNAL, "invalid request");
|
|
}
|
|
|
|
// First check the DBserver component of the body json:
|
|
ServerID DBserver = _request->value("DBserver");
|
|
|
|
if (DBserver.empty()) {
|
|
generateError(rest::ResponseCode::BAD, TRI_ERROR_HTTP_BAD_PARAMETER,
|
|
"need \"DBserver\" parameter");
|
|
return;
|
|
}
|
|
|
|
std::string const& dbname = _request->databaseName();
|
|
|
|
auto headers = std::make_shared<std::unordered_map<std::string, std::string>>(
|
|
arangodb::getForwardableRequestHeaders(_request.get()));
|
|
std::unordered_map<std::string, std::string> values = _request->values();
|
|
std::string params;
|
|
|
|
for (auto const& i : values) {
|
|
if (i.first != "DBserver") {
|
|
if (params.empty()) {
|
|
params.push_back('?');
|
|
} else {
|
|
params.push_back('&');
|
|
}
|
|
params.append(StringUtils::urlEncode(i.first));
|
|
params.push_back('=');
|
|
params.append(StringUtils::urlEncode(i.second));
|
|
}
|
|
}
|
|
|
|
// Set a few variables needed for our work:
|
|
auto cc = ClusterComm::instance();
|
|
if (cc == nullptr) {
|
|
// nullptr happens only during controlled shutdown
|
|
generateError(rest::ResponseCode::BAD, TRI_ERROR_SHUTTING_DOWN,
|
|
"shutting down server");
|
|
return;
|
|
}
|
|
|
|
std::unique_ptr<ClusterCommResult> res;
|
|
if (!useVpp) {
|
|
HttpRequest* httpRequest = dynamic_cast<HttpRequest*>(_request.get());
|
|
if (httpRequest == nullptr) {
|
|
THROW_ARANGO_EXCEPTION_MESSAGE(TRI_ERROR_INTERNAL, "invalid request type");
|
|
}
|
|
|
|
// Send a synchronous request to that shard using ClusterComm:
|
|
res = cc->syncRequest("", TRI_NewTickServer(), "server:" + DBserver,
|
|
_request->requestType(),
|
|
"/_db/" + StringUtils::urlEncode(dbname) +
|
|
_request->requestPath() + params,
|
|
httpRequest->body(), *headers, 300.0);
|
|
} else {
|
|
// do we need to handle multiple payloads here - TODO
|
|
// here we switch vorm vst to http?!
|
|
// i am not allowed to change cluster comm!
|
|
res = cc->syncRequest("", TRI_NewTickServer(), "server:" + DBserver,
|
|
_request->requestType(),
|
|
"/_db/" + StringUtils::urlEncode(dbname) +
|
|
_request->requestPath() + params,
|
|
_request->payload().toJson(), *headers, 300.0);
|
|
}
|
|
|
|
if (res->status == CL_COMM_TIMEOUT) {
|
|
// No reply, we give up:
|
|
generateError(rest::ResponseCode::BAD, TRI_ERROR_CLUSTER_TIMEOUT,
|
|
"timeout within cluster");
|
|
return;
|
|
}
|
|
if (res->status == CL_COMM_BACKEND_UNAVAILABLE) {
|
|
// there is no result
|
|
generateError(rest::ResponseCode::BAD, TRI_ERROR_CLUSTER_CONNECTION_LOST,
|
|
"lost connection within cluster");
|
|
return;
|
|
}
|
|
if (res->status == CL_COMM_ERROR) {
|
|
// This could be a broken connection or an Http error:
|
|
TRI_ASSERT(nullptr != res->result && res->result->isComplete());
|
|
// In this case a proper HTTP error was reported by the DBserver,
|
|
// we simply forward the result.
|
|
// We intentionally fall through here.
|
|
}
|
|
|
|
bool dummy;
|
|
resetResponse(
|
|
static_cast<rest::ResponseCode>(res->result->getHttpReturnCode()));
|
|
|
|
_response->setContentType(
|
|
res->result->getHeaderField(StaticStrings::ContentTypeHeader, dummy));
|
|
|
|
if (!useVpp) {
|
|
HttpResponse* httpResponse = dynamic_cast<HttpResponse*>(_response.get());
|
|
if (_response == nullptr) {
|
|
THROW_ARANGO_EXCEPTION_MESSAGE(TRI_ERROR_INTERNAL, "invalid response type");
|
|
}
|
|
httpResponse->body().swap(&(res->result->getBody()));
|
|
} else {
|
|
// TODO copy all payloads
|
|
VPackSlice slice = res->result->getBodyVelocyPack()->slice();
|
|
_response->setPayload(slice, true); // do we need to generate the body?!
|
|
}
|
|
|
|
auto const& resultHeaders = res->result->getHeaderFields();
|
|
for (auto const& it : resultHeaders) {
|
|
_response->setHeader(it.first, it.second);
|
|
}
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief was docuBlock JSF_get_api_replication_logger_returns
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
void RestReplicationHandler::handleCommandLoggerFollow() {
|
|
bool useVpp = false;
|
|
if (_request->transportType() == Endpoint::TransportType::VPP) {
|
|
useVpp = true;
|
|
}
|
|
|
|
// determine start and end tick
|
|
MMFilesLogfileManagerState const state =
|
|
MMFilesLogfileManager::instance()->state();
|
|
TRI_voc_tick_t tickStart = 0;
|
|
TRI_voc_tick_t tickEnd = UINT64_MAX;
|
|
TRI_voc_tick_t firstRegularTick = 0;
|
|
|
|
bool found;
|
|
std::string const& value1 = _request->value("from", found);
|
|
|
|
if (found) {
|
|
tickStart = static_cast<TRI_voc_tick_t>(StringUtils::uint64(value1));
|
|
}
|
|
|
|
// determine end tick for dump
|
|
std::string const& value2 = _request->value("to", found);
|
|
|
|
if (found) {
|
|
tickEnd = static_cast<TRI_voc_tick_t>(StringUtils::uint64(value2));
|
|
}
|
|
|
|
if (found && (tickStart > tickEnd || tickEnd == 0)) {
|
|
generateError(rest::ResponseCode::BAD, TRI_ERROR_HTTP_BAD_PARAMETER,
|
|
"invalid from/to values");
|
|
return;
|
|
}
|
|
|
|
// check if a barrier id was specified in request
|
|
TRI_voc_tid_t barrierId = 0;
|
|
std::string const& value3 = _request->value("barrier", found);
|
|
|
|
if (found) {
|
|
barrierId = static_cast<TRI_voc_tick_t>(StringUtils::uint64(value3));
|
|
}
|
|
|
|
bool includeSystem = true;
|
|
std::string const& value4 = _request->value("includeSystem", found);
|
|
|
|
if (found) {
|
|
includeSystem = StringUtils::boolean(value4);
|
|
}
|
|
|
|
// grab list of transactions from the body value
|
|
std::unordered_set<TRI_voc_tid_t> transactionIds;
|
|
|
|
if (_request->requestType() == arangodb::rest::RequestType::PUT) {
|
|
std::string const& value5 = _request->value("firstRegularTick", found);
|
|
|
|
if (found) {
|
|
firstRegularTick =
|
|
static_cast<TRI_voc_tick_t>(StringUtils::uint64(value5));
|
|
}
|
|
// copy default options
|
|
VPackOptions options = VPackOptions::Defaults;
|
|
options.checkAttributeUniqueness = true;
|
|
std::shared_ptr<VPackBuilder> parsedRequest;
|
|
VPackSlice slice;
|
|
try {
|
|
slice = _request->payload(&options);
|
|
} catch (...) {
|
|
generateError(rest::ResponseCode::BAD, TRI_ERROR_HTTP_BAD_PARAMETER,
|
|
"invalid body value. expecting array");
|
|
return;
|
|
}
|
|
if (!slice.isArray()) {
|
|
generateError(rest::ResponseCode::BAD, TRI_ERROR_HTTP_BAD_PARAMETER,
|
|
"invalid body value. expecting array");
|
|
return;
|
|
}
|
|
|
|
for (auto const& id : VPackArrayIterator(slice)) {
|
|
if (!id.isString()) {
|
|
generateError(rest::ResponseCode::BAD, TRI_ERROR_HTTP_BAD_PARAMETER,
|
|
"invalid body value. expecting array of ids");
|
|
return;
|
|
}
|
|
transactionIds.emplace(StringUtils::uint64(id.copyString()));
|
|
}
|
|
}
|
|
|
|
// extract collection
|
|
TRI_voc_cid_t cid = 0;
|
|
std::string const& value6 = _request->value("collection", found);
|
|
|
|
if (found) {
|
|
arangodb::LogicalCollection* c = _vocbase->lookupCollection(value6);
|
|
|
|
if (c == nullptr) {
|
|
generateError(rest::ResponseCode::NOT_FOUND,
|
|
TRI_ERROR_ARANGO_COLLECTION_NOT_FOUND);
|
|
return;
|
|
}
|
|
|
|
cid = c->cid();
|
|
}
|
|
|
|
if (barrierId > 0) {
|
|
// extend the WAL logfile barrier
|
|
MMFilesLogfileManager::instance()->extendLogfileBarrier(
|
|
barrierId, 180, tickStart);
|
|
}
|
|
|
|
auto transactionContext =
|
|
std::make_shared<StandaloneTransactionContext>(_vocbase);
|
|
|
|
// initialize the dump container
|
|
TRI_replication_dump_t dump(transactionContext,
|
|
static_cast<size_t>(determineChunkSize()),
|
|
includeSystem, cid, useVpp);
|
|
|
|
// and dump
|
|
int res = TRI_DumpLogReplication(&dump, transactionIds, firstRegularTick,
|
|
tickStart, tickEnd, false);
|
|
|
|
if (res == TRI_ERROR_NO_ERROR) {
|
|
bool const checkMore = (dump._lastFoundTick > 0 &&
|
|
dump._lastFoundTick != state.lastCommittedTick);
|
|
|
|
// generate the result
|
|
size_t length = 0;
|
|
if (useVpp) {
|
|
length = dump._slices.size();
|
|
} else {
|
|
length = TRI_LengthStringBuffer(dump._buffer);
|
|
}
|
|
|
|
if (length == 0) {
|
|
resetResponse(rest::ResponseCode::NO_CONTENT);
|
|
} else {
|
|
resetResponse(rest::ResponseCode::OK);
|
|
}
|
|
|
|
// transfer ownership of the buffer contents
|
|
_response->setContentType(rest::ContentType::DUMP);
|
|
|
|
// set headers
|
|
_response->setHeaderNC(TRI_REPLICATION_HEADER_CHECKMORE,
|
|
checkMore ? "true" : "false");
|
|
_response->setHeaderNC(TRI_REPLICATION_HEADER_LASTINCLUDED,
|
|
StringUtils::itoa(dump._lastFoundTick));
|
|
_response->setHeaderNC(TRI_REPLICATION_HEADER_LASTTICK,
|
|
StringUtils::itoa(state.lastCommittedTick));
|
|
_response->setHeaderNC(TRI_REPLICATION_HEADER_ACTIVE, "true");
|
|
_response->setHeaderNC(TRI_REPLICATION_HEADER_FROMPRESENT,
|
|
dump._fromTickIncluded ? "true" : "false");
|
|
|
|
if (length > 0) {
|
|
if (useVpp) {
|
|
for (auto message : dump._slices) {
|
|
_response->addPayload(std::move(message), &dump._vpackOptions, true);
|
|
}
|
|
} else {
|
|
HttpResponse* httpResponse =
|
|
dynamic_cast<HttpResponse*>(_response.get());
|
|
|
|
if (httpResponse == nullptr) {
|
|
THROW_ARANGO_EXCEPTION_MESSAGE(TRI_ERROR_INTERNAL, "invalid response type");
|
|
}
|
|
|
|
if (length > 0) {
|
|
// transfer ownership of the buffer contents
|
|
httpResponse->body().set(dump._buffer);
|
|
|
|
// to avoid double freeing
|
|
TRI_StealStringBuffer(dump._buffer);
|
|
}
|
|
}
|
|
|
|
insertClient(dump._lastFoundTick);
|
|
}
|
|
}
|
|
}
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief run the command that determines which transactions were open at
|
|
/// a given tick value
|
|
/// this is an internal method use by ArangoDB's replication that should not
|
|
/// be called by client drivers directly
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
void RestReplicationHandler::handleCommandDetermineOpenTransactions() {
|
|
// determine start and end tick
|
|
MMFilesLogfileManagerState const state =
|
|
MMFilesLogfileManager::instance()->state();
|
|
TRI_voc_tick_t tickStart = 0;
|
|
TRI_voc_tick_t tickEnd = state.lastCommittedTick;
|
|
|
|
bool found;
|
|
std::string const& value1 = _request->value("from", found);
|
|
|
|
if (found) {
|
|
tickStart = static_cast<TRI_voc_tick_t>(StringUtils::uint64(value1));
|
|
}
|
|
|
|
// determine end tick for dump
|
|
std::string const& value2 = _request->value("to", found);
|
|
|
|
if (found) {
|
|
tickEnd = static_cast<TRI_voc_tick_t>(StringUtils::uint64(value2));
|
|
}
|
|
|
|
if (found && (tickStart > tickEnd || tickEnd == 0)) {
|
|
generateError(rest::ResponseCode::BAD, TRI_ERROR_HTTP_BAD_PARAMETER,
|
|
"invalid from/to values");
|
|
return;
|
|
}
|
|
|
|
auto transactionContext =
|
|
std::make_shared<StandaloneTransactionContext>(_vocbase);
|
|
|
|
// initialize the dump container
|
|
TRI_replication_dump_t dump(
|
|
transactionContext, static_cast<size_t>(determineChunkSize()), false, 0);
|
|
|
|
// and dump
|
|
int res = TRI_DetermineOpenTransactionsReplication(&dump, tickStart, tickEnd);
|
|
|
|
if (res == TRI_ERROR_NO_ERROR) {
|
|
// generate the result
|
|
size_t const length = TRI_LengthStringBuffer(dump._buffer);
|
|
|
|
if (length == 0) {
|
|
resetResponse(rest::ResponseCode::NO_CONTENT);
|
|
} else {
|
|
resetResponse(rest::ResponseCode::OK);
|
|
}
|
|
|
|
HttpResponse* httpResponse = dynamic_cast<HttpResponse*>(_response.get());
|
|
if (_response == nullptr) {
|
|
THROW_ARANGO_EXCEPTION_MESSAGE(TRI_ERROR_INTERNAL, "invalid response type");
|
|
}
|
|
|
|
_response->setContentType(rest::ContentType::DUMP);
|
|
|
|
_response->setHeaderNC(TRI_REPLICATION_HEADER_FROMPRESENT,
|
|
dump._fromTickIncluded ? "true" : "false");
|
|
|
|
_response->setHeaderNC(TRI_REPLICATION_HEADER_LASTTICK,
|
|
StringUtils::itoa(dump._lastFoundTick));
|
|
|
|
if (length > 0) {
|
|
// transfer ownership of the buffer contents
|
|
httpResponse->body().set(dump._buffer);
|
|
|
|
// to avoid double freeing
|
|
TRI_StealStringBuffer(dump._buffer);
|
|
}
|
|
}
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief was docuBlock JSF_put_api_replication_inventory
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
void RestReplicationHandler::handleCommandInventory() {
|
|
TRI_voc_tick_t tick = TRI_CurrentTickServer();
|
|
|
|
// include system collections?
|
|
bool includeSystem = true;
|
|
bool found;
|
|
std::string const& value = _request->value("includeSystem", found);
|
|
|
|
if (found) {
|
|
includeSystem = StringUtils::boolean(value);
|
|
}
|
|
|
|
// collections and indexes
|
|
std::shared_ptr<VPackBuilder> collectionsBuilder;
|
|
collectionsBuilder =
|
|
_vocbase->inventory(tick, &filterCollection, (void*)&includeSystem, true,
|
|
RestReplicationHandler::sortCollections);
|
|
VPackSlice const collections = collectionsBuilder->slice();
|
|
|
|
TRI_ASSERT(collections.isArray());
|
|
|
|
VPackBuilder builder;
|
|
builder.openObject();
|
|
|
|
// add collections data
|
|
builder.add("collections", collections);
|
|
|
|
// "state"
|
|
builder.add("state", VPackValue(VPackValueType::Object));
|
|
|
|
MMFilesLogfileManagerState const s =
|
|
MMFilesLogfileManager::instance()->state();
|
|
|
|
builder.add("running", VPackValue(true));
|
|
builder.add("lastLogTick", VPackValue(std::to_string(s.lastCommittedTick)));
|
|
builder.add("lastUncommittedLogTick",
|
|
VPackValue(std::to_string(s.lastAssignedTick)));
|
|
builder.add("totalEvents", VPackValue(s.numEvents + s.numEventsSync));
|
|
builder.add("time", VPackValue(s.timeString));
|
|
builder.close(); // state
|
|
|
|
std::string const tickString(std::to_string(tick));
|
|
builder.add("tick", VPackValue(tickString));
|
|
builder.close(); // Toplevel
|
|
|
|
generateResult(rest::ResponseCode::OK, builder.slice());
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief was docuBlock JSF_get_api_replication_cluster_inventory
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
void RestReplicationHandler::handleCommandClusterInventory() {
|
|
std::string const& dbName = _request->databaseName();
|
|
bool found;
|
|
bool includeSystem = true;
|
|
|
|
std::string const& value = _request->value("includeSystem", found);
|
|
|
|
if (found) {
|
|
includeSystem = StringUtils::boolean(value);
|
|
}
|
|
|
|
ClusterInfo* ci = ClusterInfo::instance();
|
|
std::vector<std::shared_ptr<LogicalCollection>> cols = ci->getCollections(dbName);
|
|
|
|
VPackBuilder resultBuilder;
|
|
resultBuilder.openObject();
|
|
resultBuilder.add(VPackValue("collections"));
|
|
resultBuilder.openArray();
|
|
for (auto const& c : cols) {
|
|
c->toVelocyPackForClusterInventory(resultBuilder, includeSystem);
|
|
}
|
|
resultBuilder.close(); // collections
|
|
TRI_voc_tick_t tick = TRI_CurrentTickServer();
|
|
auto tickString = std::to_string(tick);
|
|
resultBuilder.add("tick", VPackValue(tickString));
|
|
resultBuilder.add("state", VPackValue("unused"));
|
|
resultBuilder.close(); // base
|
|
generateResult(rest::ResponseCode::OK, resultBuilder.slice());
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief creates a collection, based on the VelocyPack provided TODO: MOVE
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
int RestReplicationHandler::createCollection(VPackSlice const& slice,
|
|
arangodb::LogicalCollection** dst,
|
|
bool reuseId) {
|
|
if (dst != nullptr) {
|
|
*dst = nullptr;
|
|
}
|
|
|
|
if (!slice.isObject()) {
|
|
return TRI_ERROR_HTTP_BAD_PARAMETER;
|
|
}
|
|
|
|
std::string const name =
|
|
arangodb::basics::VelocyPackHelper::getStringValue(slice, "name", "");
|
|
|
|
if (name.empty()) {
|
|
return TRI_ERROR_HTTP_BAD_PARAMETER;
|
|
}
|
|
|
|
TRI_voc_cid_t cid = 0;
|
|
|
|
if (reuseId) {
|
|
cid = arangodb::basics::VelocyPackHelper::extractIdValue(slice);
|
|
|
|
if (cid == 0) {
|
|
return TRI_ERROR_HTTP_BAD_PARAMETER;
|
|
}
|
|
}
|
|
|
|
TRI_col_type_e const type = static_cast<TRI_col_type_e>(
|
|
arangodb::basics::VelocyPackHelper::getNumericValue<int>(
|
|
slice, "type", (int)TRI_COL_TYPE_DOCUMENT));
|
|
|
|
arangodb::LogicalCollection* col = nullptr;
|
|
|
|
if (cid > 0) {
|
|
col = _vocbase->lookupCollection(cid);
|
|
}
|
|
|
|
if (col != nullptr && col->type() == type) {
|
|
// collection already exists. TODO: compare attributes
|
|
return TRI_ERROR_NO_ERROR;
|
|
}
|
|
|
|
int res = TRI_ERROR_NO_ERROR;
|
|
try {
|
|
col = _vocbase->createCollection(slice, cid, true);
|
|
} catch (basics::Exception const& ex) {
|
|
res = ex.code();
|
|
} catch (...) {
|
|
res = TRI_ERROR_INTERNAL;
|
|
}
|
|
|
|
if (res != TRI_ERROR_NO_ERROR) {
|
|
return res;
|
|
}
|
|
|
|
TRI_ASSERT(col != nullptr);
|
|
|
|
/* Temporary ASSERTS to prove correctness of new constructor */
|
|
TRI_ASSERT(col->doCompact() ==
|
|
arangodb::basics::VelocyPackHelper::getBooleanValue(
|
|
slice, "doCompact", true));
|
|
TRI_ASSERT(
|
|
col->waitForSync() ==
|
|
arangodb::basics::VelocyPackHelper::getBooleanValue(
|
|
slice, "waitForSync",
|
|
application_features::ApplicationServer::getFeature<DatabaseFeature>(
|
|
"Database")
|
|
->waitForSync()));
|
|
TRI_ASSERT(col->isVolatile() ==
|
|
arangodb::basics::VelocyPackHelper::getBooleanValue(
|
|
slice, "isVolatile", false));
|
|
TRI_ASSERT(col->isSystem() == (name[0] == '_'));
|
|
TRI_ASSERT(
|
|
col->indexBuckets() ==
|
|
arangodb::basics::VelocyPackHelper::getNumericValue<uint32_t>(
|
|
slice, "indexBuckets", DatabaseFeature::defaultIndexBuckets()));
|
|
#ifdef ARANGODB_ENABLE_MAINTAINER_MODE
|
|
TRI_voc_cid_t planId = 0;
|
|
VPackSlice const planIdSlice = slice.get("planId");
|
|
if (planIdSlice.isNumber()) {
|
|
planId =
|
|
static_cast<TRI_voc_cid_t>(planIdSlice.getNumericValue<uint64_t>());
|
|
} else if (planIdSlice.isString()) {
|
|
std::string tmp = planIdSlice.copyString();
|
|
planId = static_cast<TRI_voc_cid_t>(StringUtils::uint64(tmp));
|
|
} else if (planIdSlice.isNone()) {
|
|
// There is no plan ID it has to be equal to collection id
|
|
planId = col->cid();
|
|
}
|
|
|
|
TRI_ASSERT(col->planId() == planId);
|
|
#endif
|
|
|
|
if (dst != nullptr) {
|
|
*dst = col;
|
|
}
|
|
|
|
return TRI_ERROR_NO_ERROR;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief restores the structure of a collection TODO MOVE
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
void RestReplicationHandler::handleCommandRestoreCollection() {
|
|
std::shared_ptr<VPackBuilder> parsedRequest;
|
|
|
|
// copy default options
|
|
VPackOptions options = VPackOptions::Defaults;
|
|
options.checkAttributeUniqueness = true;
|
|
|
|
try {
|
|
parsedRequest = _request->toVelocyPackBuilderPtr(&options);
|
|
} catch (...) {
|
|
generateError(rest::ResponseCode::BAD, TRI_ERROR_HTTP_BAD_PARAMETER,
|
|
"invalid JSON");
|
|
return;
|
|
}
|
|
VPackSlice const slice = parsedRequest->slice();
|
|
|
|
bool overwrite = false;
|
|
|
|
bool found;
|
|
std::string const& value1 = _request->value("overwrite", found);
|
|
|
|
if (found) {
|
|
overwrite = StringUtils::boolean(value1);
|
|
}
|
|
|
|
bool recycleIds = false;
|
|
std::string const& value2 = _request->value("recycleIds", found);
|
|
|
|
if (found) {
|
|
recycleIds = StringUtils::boolean(value2);
|
|
}
|
|
|
|
bool force = false;
|
|
std::string const& value3 = _request->value("force", found);
|
|
|
|
if (found) {
|
|
force = StringUtils::boolean(value3);
|
|
}
|
|
|
|
uint64_t numberOfShards = 0;
|
|
std::string const& value4 = _request->value("numberOfShards", found);
|
|
|
|
if (found) {
|
|
numberOfShards = StringUtils::uint64(value4);
|
|
}
|
|
|
|
uint64_t replicationFactor = 1;
|
|
std::string const& value5 = _request->value("replicationFactor", found);
|
|
|
|
if (found) {
|
|
replicationFactor = StringUtils::uint64(value5);
|
|
}
|
|
|
|
std::string errorMsg;
|
|
int res;
|
|
|
|
if (ServerState::instance()->isCoordinator()) {
|
|
res = processRestoreCollectionCoordinator(slice, overwrite, recycleIds,
|
|
force, numberOfShards, errorMsg,
|
|
replicationFactor);
|
|
} else {
|
|
res =
|
|
processRestoreCollection(slice, overwrite, recycleIds, force, errorMsg);
|
|
}
|
|
|
|
if (res != TRI_ERROR_NO_ERROR) {
|
|
THROW_ARANGO_EXCEPTION(res);
|
|
}
|
|
|
|
VPackBuilder result;
|
|
result.add(VPackValue(VPackValueType::Object));
|
|
result.add("result", VPackValue(true));
|
|
result.close();
|
|
generateResult(rest::ResponseCode::OK, result.slice());
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief restores the indexes of a collection TODO MOVE
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
void RestReplicationHandler::handleCommandRestoreIndexes() {
|
|
std::shared_ptr<VPackBuilder> parsedRequest;
|
|
|
|
// copy default options
|
|
VPackOptions options = VPackOptions::Defaults;
|
|
options.checkAttributeUniqueness = true;
|
|
|
|
try {
|
|
parsedRequest = _request->toVelocyPackBuilderPtr(&options);
|
|
} catch (...) {
|
|
generateError(rest::ResponseCode::BAD, TRI_ERROR_HTTP_BAD_PARAMETER,
|
|
"invalid JSON");
|
|
return;
|
|
}
|
|
VPackSlice const slice = parsedRequest->slice();
|
|
|
|
bool found;
|
|
bool force = false;
|
|
std::string const& value = _request->value("force", found);
|
|
|
|
if (found) {
|
|
force = StringUtils::boolean(value);
|
|
}
|
|
|
|
std::string errorMsg;
|
|
int res;
|
|
if (ServerState::instance()->isCoordinator()) {
|
|
res = processRestoreIndexesCoordinator(slice, force, errorMsg);
|
|
} else {
|
|
res = processRestoreIndexes(slice, force, errorMsg);
|
|
}
|
|
|
|
if (res != TRI_ERROR_NO_ERROR) {
|
|
THROW_ARANGO_EXCEPTION(res);
|
|
}
|
|
|
|
VPackBuilder result;
|
|
result.openObject();
|
|
result.add("result", VPackValue(true));
|
|
result.close();
|
|
generateResult(rest::ResponseCode::OK, result.slice());
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief restores the structure of a collection TODO MOVE
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
int RestReplicationHandler::processRestoreCollection(
|
|
VPackSlice const& collection, bool dropExisting, bool reuseId, bool force,
|
|
std::string& errorMsg) {
|
|
if (!collection.isObject()) {
|
|
errorMsg = "collection declaration is invalid";
|
|
|
|
return TRI_ERROR_HTTP_BAD_PARAMETER;
|
|
}
|
|
|
|
VPackSlice const parameters = collection.get("parameters");
|
|
|
|
if (!parameters.isObject()) {
|
|
errorMsg = "collection parameters declaration is invalid";
|
|
|
|
return TRI_ERROR_HTTP_BAD_PARAMETER;
|
|
}
|
|
|
|
VPackSlice const indexes = collection.get("indexes");
|
|
|
|
if (!indexes.isArray()) {
|
|
errorMsg = "collection indexes declaration is invalid";
|
|
|
|
return TRI_ERROR_HTTP_BAD_PARAMETER;
|
|
}
|
|
|
|
std::string const name = arangodb::basics::VelocyPackHelper::getStringValue(
|
|
parameters, "name", "");
|
|
|
|
if (name.empty()) {
|
|
errorMsg = "collection name is missing";
|
|
|
|
return TRI_ERROR_HTTP_BAD_PARAMETER;
|
|
}
|
|
|
|
if (arangodb::basics::VelocyPackHelper::getBooleanValue(parameters, "deleted",
|
|
false)) {
|
|
// we don't care about deleted collections
|
|
return TRI_ERROR_NO_ERROR;
|
|
}
|
|
|
|
arangodb::LogicalCollection* col = nullptr;
|
|
|
|
if (reuseId) {
|
|
TRI_voc_cid_t const cid =
|
|
arangodb::basics::VelocyPackHelper::extractIdValue(parameters);
|
|
|
|
if (cid == 0) {
|
|
errorMsg = "collection id is missing";
|
|
|
|
return TRI_ERROR_HTTP_BAD_PARAMETER;
|
|
}
|
|
|
|
// first look up the collection by the cid
|
|
col = _vocbase->lookupCollection(cid);
|
|
}
|
|
|
|
if (col == nullptr) {
|
|
// not found, try name next
|
|
col = _vocbase->lookupCollection(name);
|
|
}
|
|
|
|
// drop an existing collection if it exists
|
|
if (col != nullptr) {
|
|
if (dropExisting) {
|
|
int res = _vocbase->dropCollection(col, true, true);
|
|
|
|
if (res == TRI_ERROR_FORBIDDEN) {
|
|
// some collections must not be dropped
|
|
|
|
// instead, truncate them
|
|
SingleCollectionTransaction trx(
|
|
StandaloneTransactionContext::Create(_vocbase), col->cid(),
|
|
AccessMode::Type::WRITE);
|
|
trx.addHint(transaction::Hints::Hint::RECOVERY); // to turn off waitForSync!
|
|
|
|
res = trx.begin();
|
|
if (res != TRI_ERROR_NO_ERROR) {
|
|
return res;
|
|
}
|
|
|
|
OperationOptions options;
|
|
OperationResult opRes = trx.truncate(name, options);
|
|
|
|
res = trx.finish(opRes.code);
|
|
|
|
return res;
|
|
}
|
|
|
|
if (res != TRI_ERROR_NO_ERROR) {
|
|
errorMsg = "unable to drop collection '" + name + "': " +
|
|
std::string(TRI_errno_string(res));
|
|
|
|
return res;
|
|
}
|
|
} else {
|
|
int res = TRI_ERROR_ARANGO_DUPLICATE_NAME;
|
|
|
|
errorMsg = "unable to create collection '" + name + "': " +
|
|
std::string(TRI_errno_string(res));
|
|
|
|
return res;
|
|
}
|
|
}
|
|
|
|
// now re-create the collection
|
|
int res = createCollection(parameters, &col, reuseId);
|
|
|
|
if (res != TRI_ERROR_NO_ERROR) {
|
|
errorMsg =
|
|
"unable to create collection: " + std::string(TRI_errno_string(res));
|
|
|
|
return res;
|
|
}
|
|
|
|
return TRI_ERROR_NO_ERROR;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief restores the structure of a collection, coordinator case
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
int RestReplicationHandler::processRestoreCollectionCoordinator(
|
|
VPackSlice const& collection, bool dropExisting, bool reuseId, bool force,
|
|
uint64_t numberOfShards, std::string& errorMsg,
|
|
uint64_t replicationFactor) {
|
|
if (!collection.isObject()) {
|
|
errorMsg = "collection declaration is invalid";
|
|
|
|
return TRI_ERROR_HTTP_BAD_PARAMETER;
|
|
}
|
|
|
|
VPackSlice const parameters = collection.get("parameters");
|
|
|
|
if (!parameters.isObject()) {
|
|
errorMsg = "collection parameters declaration is invalid";
|
|
|
|
return TRI_ERROR_HTTP_BAD_PARAMETER;
|
|
}
|
|
|
|
std::string const name = arangodb::basics::VelocyPackHelper::getStringValue(
|
|
parameters, "name", "");
|
|
|
|
if (name.empty()) {
|
|
errorMsg = "collection name is missing";
|
|
|
|
return TRI_ERROR_HTTP_BAD_PARAMETER;
|
|
}
|
|
|
|
if (arangodb::basics::VelocyPackHelper::getBooleanValue(parameters, "deleted",
|
|
false)) {
|
|
// we don't care about deleted collections
|
|
return TRI_ERROR_NO_ERROR;
|
|
}
|
|
|
|
std::string dbName = _vocbase->name();
|
|
|
|
ClusterInfo* ci = ClusterInfo::instance();
|
|
|
|
try {
|
|
// in a cluster, we only look up by name:
|
|
std::shared_ptr<LogicalCollection> col = ci->getCollection(dbName, name);
|
|
|
|
// drop an existing collection if it exists
|
|
if (dropExisting) {
|
|
int res = ci->dropCollectionCoordinator(dbName, col->cid_as_string(),
|
|
errorMsg, 0.0);
|
|
if (res == TRI_ERROR_FORBIDDEN) {
|
|
// some collections must not be dropped
|
|
res = truncateCollectionOnCoordinator(dbName, name);
|
|
if (res != TRI_ERROR_NO_ERROR) {
|
|
errorMsg =
|
|
"unable to truncate collection (dropping is forbidden): " + name;
|
|
return res;
|
|
}
|
|
}
|
|
|
|
if (res != TRI_ERROR_NO_ERROR) {
|
|
errorMsg = "unable to drop collection '" + name + "': " +
|
|
std::string(TRI_errno_string(res));
|
|
|
|
return res;
|
|
}
|
|
} else {
|
|
int res = TRI_ERROR_ARANGO_DUPLICATE_NAME;
|
|
|
|
errorMsg = "unable to create collection '" + name + "': " +
|
|
std::string(TRI_errno_string(res));
|
|
|
|
return res;
|
|
}
|
|
} catch (...) {
|
|
}
|
|
|
|
// now re-create the collection
|
|
|
|
// Build up new information that we need to merge with the given one
|
|
VPackBuilder toMerge;
|
|
toMerge.openObject();
|
|
|
|
// We always need a new id
|
|
TRI_voc_tick_t newIdTick = ci->uniqid(1);
|
|
std::string newId = StringUtils::itoa(newIdTick);
|
|
toMerge.add("id", VPackValue(newId));
|
|
|
|
// Number of shards. Will be overwritten if not existent
|
|
VPackSlice const numberOfShardsSlice = parameters.get("numberOfShards");
|
|
if (!numberOfShardsSlice.isInteger()) {
|
|
// The information does not contain numberOfShards. Overwrite it.
|
|
VPackSlice const shards = parameters.get("shards");
|
|
if (shards.isObject()) {
|
|
numberOfShards = static_cast<uint64_t>(shards.length());
|
|
} else {
|
|
// "shards" not specified
|
|
// now check if numberOfShards property was given
|
|
if (numberOfShards == 0) {
|
|
// We take one shard if no value was given
|
|
numberOfShards = 1;
|
|
}
|
|
}
|
|
TRI_ASSERT(numberOfShards > 0);
|
|
toMerge.add("numberOfShards", VPackValue(numberOfShards));
|
|
}
|
|
|
|
// Replication Factor. Will be overwritten if not existent
|
|
VPackSlice const replFactorSlice = parameters.get("replicationFactor");
|
|
if (!replFactorSlice.isInteger()) {
|
|
if (replicationFactor == 0) {
|
|
replicationFactor = 1;
|
|
}
|
|
TRI_ASSERT(replicationFactor > 0);
|
|
toMerge.add("replicationFactor", VPackValue(replicationFactor));
|
|
}
|
|
toMerge.close(); // TopLevel
|
|
|
|
VPackSlice const type = parameters.get("type");
|
|
TRI_col_type_e collectionType;
|
|
if (type.isNumber()) {
|
|
collectionType = static_cast<TRI_col_type_e>(type.getNumericValue<int>());
|
|
} else {
|
|
errorMsg = "collection type not given or wrong";
|
|
return TRI_ERROR_HTTP_BAD_PARAMETER;
|
|
}
|
|
|
|
VPackSlice const sliceToMerge = toMerge.slice();
|
|
VPackBuilder mergedBuilder =
|
|
VPackCollection::merge(parameters, sliceToMerge, false);
|
|
VPackSlice const merged = mergedBuilder.slice();
|
|
try {
|
|
auto col = ClusterMethods::createCollectionOnCoordinator(collectionType,
|
|
_vocbase, merged);
|
|
TRI_ASSERT(col != nullptr);
|
|
} catch (basics::Exception const& e) {
|
|
// Error, report it.
|
|
errorMsg = e.message();
|
|
return e.code();
|
|
}
|
|
// All other errors are thrown to the outside.
|
|
return TRI_ERROR_NO_ERROR;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief restores the indexes of a collection TODO MOVE
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
int RestReplicationHandler::processRestoreIndexes(VPackSlice const& collection,
|
|
bool force,
|
|
std::string& errorMsg) {
|
|
if (!collection.isObject()) {
|
|
errorMsg = "collection declaration is invalid";
|
|
|
|
return TRI_ERROR_HTTP_BAD_PARAMETER;
|
|
}
|
|
|
|
VPackSlice const parameters = collection.get("parameters");
|
|
|
|
if (!parameters.isObject()) {
|
|
errorMsg = "collection parameters declaration is invalid";
|
|
|
|
return TRI_ERROR_HTTP_BAD_PARAMETER;
|
|
}
|
|
|
|
VPackSlice const indexes = collection.get("indexes");
|
|
|
|
if (!indexes.isArray()) {
|
|
errorMsg = "collection indexes declaration is invalid";
|
|
|
|
return TRI_ERROR_HTTP_BAD_PARAMETER;
|
|
}
|
|
|
|
VPackValueLength const n = indexes.length();
|
|
|
|
if (n == 0) {
|
|
// nothing to do
|
|
return TRI_ERROR_NO_ERROR;
|
|
}
|
|
|
|
std::string const name = arangodb::basics::VelocyPackHelper::getStringValue(
|
|
parameters, "name", "");
|
|
|
|
if (name.empty()) {
|
|
errorMsg = "collection name is missing";
|
|
|
|
return TRI_ERROR_HTTP_BAD_PARAMETER;
|
|
}
|
|
|
|
if (arangodb::basics::VelocyPackHelper::getBooleanValue(parameters, "deleted",
|
|
false)) {
|
|
// we don't care about deleted collections
|
|
return TRI_ERROR_NO_ERROR;
|
|
}
|
|
|
|
READ_LOCKER(readLocker, _vocbase->_inventoryLock);
|
|
|
|
// look up the collection
|
|
try {
|
|
CollectionGuard guard(_vocbase, name.c_str());
|
|
|
|
LogicalCollection* collection = guard.collection();
|
|
|
|
SingleCollectionTransaction trx(
|
|
StandaloneTransactionContext::Create(_vocbase), collection->cid(),
|
|
AccessMode::Type::WRITE);
|
|
|
|
int res = trx.begin();
|
|
|
|
if (res != TRI_ERROR_NO_ERROR) {
|
|
errorMsg =
|
|
"unable to start transaction: " + std::string(TRI_errno_string(res));
|
|
THROW_ARANGO_EXCEPTION(res);
|
|
}
|
|
|
|
for (VPackSlice const& idxDef : VPackArrayIterator(indexes)) {
|
|
std::shared_ptr<arangodb::Index> idx;
|
|
|
|
// {"id":"229907440927234","type":"hash","unique":false,"fields":["x","Y"]}
|
|
|
|
res = collection->restoreIndex(&trx, idxDef, idx);
|
|
|
|
if (res == TRI_ERROR_NOT_IMPLEMENTED) {
|
|
continue;
|
|
}
|
|
|
|
if (res != TRI_ERROR_NO_ERROR) {
|
|
errorMsg =
|
|
"could not create index: " + std::string(TRI_errno_string(res));
|
|
break;
|
|
} else {
|
|
TRI_ASSERT(idx != nullptr);
|
|
|
|
res = collection->saveIndex(idx.get(), true);
|
|
|
|
if (res != TRI_ERROR_NO_ERROR) {
|
|
errorMsg =
|
|
"could not save index: " + std::string(TRI_errno_string(res));
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
} catch (arangodb::basics::Exception const& ex) {
|
|
errorMsg =
|
|
"could not create index: " + std::string(TRI_errno_string(ex.code()));
|
|
} catch (...) {
|
|
errorMsg = "could not create index: unknown error";
|
|
}
|
|
|
|
return TRI_ERROR_NO_ERROR;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief restores the indexes of a collection, coordinator case
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
int RestReplicationHandler::processRestoreIndexesCoordinator(
|
|
VPackSlice const& collection, bool force, std::string& errorMsg) {
|
|
if (!collection.isObject()) {
|
|
errorMsg = "collection declaration is invalid";
|
|
|
|
return TRI_ERROR_HTTP_BAD_PARAMETER;
|
|
}
|
|
VPackSlice const parameters = collection.get("parameters");
|
|
|
|
if (!parameters.isObject()) {
|
|
errorMsg = "collection parameters declaration is invalid";
|
|
|
|
return TRI_ERROR_HTTP_BAD_PARAMETER;
|
|
}
|
|
|
|
VPackSlice indexes = collection.get("indexes");
|
|
|
|
if (!indexes.isArray()) {
|
|
errorMsg = "collection indexes declaration is invalid";
|
|
|
|
return TRI_ERROR_HTTP_BAD_PARAMETER;
|
|
}
|
|
|
|
size_t const n = static_cast<size_t>(indexes.length());
|
|
|
|
if (n == 0) {
|
|
// nothing to do
|
|
return TRI_ERROR_NO_ERROR;
|
|
}
|
|
|
|
std::string name = arangodb::basics::VelocyPackHelper::getStringValue(
|
|
parameters, "name", "");
|
|
|
|
if (name.empty()) {
|
|
errorMsg = "collection name is missing";
|
|
|
|
return TRI_ERROR_HTTP_BAD_PARAMETER;
|
|
}
|
|
|
|
if (arangodb::basics::VelocyPackHelper::getBooleanValue(parameters, "deleted",
|
|
false)) {
|
|
// we don't care about deleted collections
|
|
return TRI_ERROR_NO_ERROR;
|
|
}
|
|
|
|
std::string dbName = _vocbase->name();
|
|
|
|
// in a cluster, we only look up by name:
|
|
ClusterInfo* ci = ClusterInfo::instance();
|
|
std::shared_ptr<LogicalCollection> col;
|
|
try {
|
|
col = ci->getCollection(dbName, name);
|
|
} catch (...) {
|
|
errorMsg = "could not find collection '" + name + "'";
|
|
return TRI_ERROR_ARANGO_COLLECTION_NOT_FOUND;
|
|
}
|
|
TRI_ASSERT(col != nullptr);
|
|
|
|
int res = TRI_ERROR_NO_ERROR;
|
|
for (VPackSlice const& idxDef : VPackArrayIterator(indexes)) {
|
|
VPackSlice type = idxDef.get("type");
|
|
if (type.isString() &&
|
|
(type.copyString() == "primary" || type.copyString() == "edge")) {
|
|
// must ignore these types of indexes during restore
|
|
continue;
|
|
}
|
|
|
|
VPackBuilder tmp;
|
|
res = ci->ensureIndexCoordinator(dbName, col->cid_as_string(), idxDef, true,
|
|
arangodb::Index::Compare, tmp, errorMsg,
|
|
3600.0);
|
|
if (res != TRI_ERROR_NO_ERROR) {
|
|
errorMsg =
|
|
"could not create index: " + std::string(TRI_errno_string(res));
|
|
break;
|
|
}
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief apply the data from a collection dump or the continuous log
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
int RestReplicationHandler::applyCollectionDumpMarker(
|
|
transaction::Methods& trx, CollectionNameResolver const& resolver,
|
|
std::string const& collectionName, TRI_replication_operation_e type,
|
|
VPackSlice const& old, VPackSlice const& slice, std::string& errorMsg) {
|
|
if (type == REPLICATION_MARKER_DOCUMENT) {
|
|
// {"type":2400,"key":"230274209405676","data":{"_key":"230274209405676","_rev":"230274209405676","foo":"bar"}}
|
|
|
|
TRI_ASSERT(slice.isObject());
|
|
|
|
OperationOptions options;
|
|
options.silent = true;
|
|
options.ignoreRevs = true;
|
|
options.isRestore = true;
|
|
options.waitForSync = false;
|
|
|
|
try {
|
|
OperationResult opRes = trx.insert(collectionName, slice, options);
|
|
|
|
if (opRes.code == TRI_ERROR_ARANGO_UNIQUE_CONSTRAINT_VIOLATED) {
|
|
// must update
|
|
opRes = trx.update(collectionName, slice, options);
|
|
}
|
|
|
|
return opRes.code;
|
|
} catch (arangodb::basics::Exception const& ex) {
|
|
return ex.code();
|
|
} catch (...) {
|
|
return TRI_ERROR_INTERNAL;
|
|
}
|
|
}
|
|
|
|
else if (type == REPLICATION_MARKER_REMOVE) {
|
|
// {"type":2402,"key":"592063"}
|
|
|
|
try {
|
|
OperationOptions options;
|
|
options.silent = true;
|
|
options.ignoreRevs = true;
|
|
options.waitForSync = false;
|
|
OperationResult opRes = trx.remove(collectionName, old, options);
|
|
|
|
if (!opRes.successful() &&
|
|
opRes.code == TRI_ERROR_ARANGO_DOCUMENT_NOT_FOUND) {
|
|
// ignore this error
|
|
return TRI_ERROR_NO_ERROR;
|
|
}
|
|
|
|
return opRes.code;
|
|
} catch (arangodb::basics::Exception const& ex) {
|
|
return ex.code();
|
|
} catch (...) {
|
|
return TRI_ERROR_INTERNAL;
|
|
}
|
|
}
|
|
|
|
errorMsg = "unexpected marker type " + StringUtils::itoa(type);
|
|
|
|
return TRI_ERROR_REPLICATION_UNEXPECTED_MARKER;
|
|
}
|
|
|
|
static int restoreDataParser(char const* ptr, char const* pos,
|
|
std::string const& invalidMsg, bool useRevision,
|
|
std::string& errorMsg, std::string& key,
|
|
VPackBuilder& builder,
|
|
VPackSlice& doc,
|
|
TRI_replication_operation_e& type) {
|
|
builder.clear();
|
|
|
|
try {
|
|
VPackParser parser(builder);
|
|
parser.parse(ptr, static_cast<size_t>(pos - ptr));
|
|
} catch (VPackException const&) {
|
|
// Could not parse the given string
|
|
errorMsg = invalidMsg;
|
|
|
|
return TRI_ERROR_HTTP_CORRUPTED_JSON;
|
|
} catch (std::exception const&) {
|
|
// Could not even build the string
|
|
errorMsg = invalidMsg;
|
|
|
|
return TRI_ERROR_HTTP_CORRUPTED_JSON;
|
|
} catch (...) {
|
|
return TRI_ERROR_INTERNAL;
|
|
}
|
|
|
|
VPackSlice const slice = builder.slice();
|
|
|
|
if (!slice.isObject()) {
|
|
errorMsg = invalidMsg;
|
|
|
|
return TRI_ERROR_HTTP_CORRUPTED_JSON;
|
|
}
|
|
|
|
type = REPLICATION_INVALID;
|
|
|
|
for (auto const& pair : VPackObjectIterator(slice, true)) {
|
|
if (!pair.key.isString()) {
|
|
errorMsg = invalidMsg;
|
|
|
|
return TRI_ERROR_HTTP_CORRUPTED_JSON;
|
|
}
|
|
|
|
std::string const attributeName = pair.key.copyString();
|
|
|
|
if (attributeName == "type") {
|
|
if (pair.value.isNumber()) {
|
|
int v = pair.value.getNumericValue<int>();
|
|
if (v == 2301) {
|
|
// pre-3.0 type for edges
|
|
type = REPLICATION_MARKER_DOCUMENT;
|
|
} else {
|
|
type = static_cast<TRI_replication_operation_e>(v);
|
|
}
|
|
}
|
|
}
|
|
|
|
else if (attributeName == "data") {
|
|
if (pair.value.isObject()) {
|
|
doc = pair.value;
|
|
|
|
if (doc.hasKey(StaticStrings::KeyString)) {
|
|
key = doc.get(StaticStrings::KeyString).copyString();
|
|
}
|
|
}
|
|
}
|
|
|
|
else if (attributeName == "key") {
|
|
if (key.empty()) {
|
|
key = pair.value.copyString();
|
|
}
|
|
}
|
|
}
|
|
|
|
if (type == REPLICATION_MARKER_DOCUMENT && !doc.isObject()) {
|
|
errorMsg = "got document marker without contents";
|
|
return TRI_ERROR_HTTP_BAD_PARAMETER;
|
|
}
|
|
|
|
if (key.empty()) {
|
|
LOG_TOPIC(ERR, arangodb::Logger::FIXME) << "GOT EXCEPTION 5";
|
|
errorMsg = invalidMsg;
|
|
|
|
return TRI_ERROR_HTTP_BAD_PARAMETER;
|
|
}
|
|
|
|
return TRI_ERROR_NO_ERROR;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief restores the data of a collection TODO MOVE
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
int RestReplicationHandler::processRestoreDataBatch(
|
|
transaction::Methods& trx,
|
|
std::string const& collectionName, bool useRevision, bool force,
|
|
std::string& errorMsg) {
|
|
std::string const invalidMsg =
|
|
"received invalid JSON data for collection " + collectionName;
|
|
|
|
VPackBuilder builder;
|
|
|
|
HttpRequest* httpRequest = dynamic_cast<HttpRequest*>(_request.get());
|
|
if (httpRequest == nullptr) {
|
|
THROW_ARANGO_EXCEPTION_MESSAGE(TRI_ERROR_INTERNAL, "invalid request type");
|
|
}
|
|
|
|
std::string const& bodyStr = httpRequest->body();
|
|
char const* ptr = bodyStr.c_str();
|
|
char const* end = ptr + bodyStr.size();
|
|
|
|
VPackBuilder allMarkers;
|
|
VPackValueLength currentPos = 0;
|
|
std::unordered_map<std::string, VPackValueLength> latest;
|
|
|
|
// First parse and collect all markers, we assemble everything in one
|
|
// large builder holding an array. We keep for each key the latest
|
|
// entry.
|
|
|
|
{
|
|
VPackArrayBuilder guard(&allMarkers);
|
|
std::string key;
|
|
while (ptr < end) {
|
|
char const* pos = strchr(ptr, '\n');
|
|
|
|
if (pos == nullptr) {
|
|
pos = end;
|
|
} else {
|
|
*((char*)pos) = '\0';
|
|
}
|
|
|
|
if (pos - ptr > 1) {
|
|
// found something
|
|
key.clear();
|
|
VPackSlice doc;
|
|
TRI_replication_operation_e type = REPLICATION_INVALID;
|
|
|
|
int res = restoreDataParser(ptr, pos, invalidMsg, useRevision, errorMsg,
|
|
key, builder, doc, type);
|
|
if (res != TRI_ERROR_NO_ERROR) {
|
|
return res;
|
|
}
|
|
|
|
// Put into array of all parsed markers:
|
|
allMarkers.add(builder.slice());
|
|
auto it = latest.find(key);
|
|
if (it != latest.end()) {
|
|
// Already found, overwrite:
|
|
it->second = currentPos;
|
|
} else {
|
|
latest.emplace(std::make_pair(key, currentPos));
|
|
}
|
|
++currentPos;
|
|
}
|
|
|
|
ptr = pos + 1;
|
|
}
|
|
}
|
|
|
|
// First remove all keys of which the last marker we saw was a deletion
|
|
// marker:
|
|
VPackSlice allMarkersSlice = allMarkers.slice();
|
|
VPackBuilder oldBuilder;
|
|
{
|
|
VPackArrayBuilder guard(&oldBuilder);
|
|
|
|
for (auto const& p : latest) {
|
|
VPackSlice const marker = allMarkersSlice.at(p.second);
|
|
VPackSlice const typeSlice = marker.get("type");
|
|
TRI_replication_operation_e type = REPLICATION_INVALID;
|
|
if (typeSlice.isNumber()) {
|
|
int typeInt = typeSlice.getNumericValue<int>();
|
|
if (typeInt == 2301) { // pre-3.0 type for edges
|
|
type = REPLICATION_MARKER_DOCUMENT;
|
|
} else {
|
|
type = static_cast<TRI_replication_operation_e>(typeInt);
|
|
}
|
|
}
|
|
if (type == REPLICATION_MARKER_REMOVE) {
|
|
oldBuilder.add(VPackValue(p.first)); // Add _key
|
|
} else if (type != REPLICATION_MARKER_DOCUMENT) {
|
|
errorMsg = "unexpected marker type " + StringUtils::itoa(type);
|
|
return TRI_ERROR_REPLICATION_UNEXPECTED_MARKER;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Note that we ignore individual errors here, as long as the main
|
|
// operation did not fail. In particular, we intentionally ignore
|
|
// individual "DOCUMENT NOT FOUND" errors, because they can happen!
|
|
try {
|
|
OperationOptions options;
|
|
options.silent = true;
|
|
options.ignoreRevs = true;
|
|
options.isRestore = true;
|
|
options.waitForSync = false;
|
|
OperationResult opRes =
|
|
trx.remove(collectionName, oldBuilder.slice(), options);
|
|
if (!opRes.successful()) {
|
|
return opRes.code;
|
|
}
|
|
} catch (arangodb::basics::Exception const& ex) {
|
|
return ex.code();
|
|
} catch (...) {
|
|
return TRI_ERROR_INTERNAL;
|
|
}
|
|
|
|
// Now try to insert all keys for which the last marker was a document
|
|
// marker, note that these could still be replace markers!
|
|
builder.clear();
|
|
{
|
|
VPackArrayBuilder guard(&builder);
|
|
|
|
for (auto const& p : latest) {
|
|
VPackSlice const marker = allMarkersSlice.at(p.second);
|
|
VPackSlice const typeSlice = marker.get("type");
|
|
TRI_replication_operation_e type = REPLICATION_INVALID;
|
|
if (typeSlice.isNumber()) {
|
|
int typeInt = typeSlice.getNumericValue<int>();
|
|
if (typeInt == 2301) { // pre-3.0 type for edges
|
|
type = REPLICATION_MARKER_DOCUMENT;
|
|
} else {
|
|
type = static_cast<TRI_replication_operation_e>(typeInt);
|
|
}
|
|
}
|
|
if (type == REPLICATION_MARKER_DOCUMENT) {
|
|
VPackSlice const doc = marker.get("data");
|
|
TRI_ASSERT(doc.isObject());
|
|
builder.add(doc);
|
|
}
|
|
}
|
|
}
|
|
|
|
VPackSlice requestSlice = builder.slice();
|
|
OperationResult opRes;
|
|
try {
|
|
OperationOptions options;
|
|
options.silent = false;
|
|
options.ignoreRevs = true;
|
|
options.isRestore = true;
|
|
options.waitForSync = false;
|
|
opRes = trx.insert(collectionName, requestSlice, options);
|
|
if (!opRes.successful()) {
|
|
return opRes.code;
|
|
}
|
|
} catch (arangodb::basics::Exception const& ex) {
|
|
return ex.code();
|
|
} catch (...) {
|
|
return TRI_ERROR_INTERNAL;
|
|
}
|
|
|
|
// Now go through the individual results and check each error, if it was
|
|
// TRI_ERROR_ARANGO_UNIQUE_CONSTRAINT_VIOLATED, then we have to call
|
|
// replace on the document:
|
|
VPackSlice resultSlice = opRes.slice();
|
|
VPackBuilder replBuilder; // documents for replace operation
|
|
{
|
|
VPackArrayBuilder guard(&oldBuilder);
|
|
VPackArrayBuilder guard2(&replBuilder);
|
|
VPackArrayIterator itRequest(requestSlice);
|
|
VPackArrayIterator itResult(resultSlice);
|
|
|
|
while (itRequest.valid()) {
|
|
VPackSlice result = *itResult;
|
|
VPackSlice error = result.get("error");
|
|
if (error.isTrue()) {
|
|
error = result.get("errorNum");
|
|
if (error.isNumber()) {
|
|
int code = error.getNumericValue<int>();
|
|
if (code == TRI_ERROR_ARANGO_UNIQUE_CONSTRAINT_VIOLATED) {
|
|
replBuilder.add(*itRequest);
|
|
} else {
|
|
return code;
|
|
}
|
|
} else {
|
|
return TRI_ERROR_INTERNAL;
|
|
}
|
|
}
|
|
itRequest.next();
|
|
itResult.next();
|
|
}
|
|
}
|
|
try {
|
|
OperationOptions options;
|
|
options.silent = true;
|
|
options.ignoreRevs = true;
|
|
options.isRestore = true;
|
|
options.waitForSync = false;
|
|
opRes = trx.replace(collectionName, replBuilder.slice(), options);
|
|
if (!opRes.successful()) {
|
|
return opRes.code;
|
|
}
|
|
} catch (arangodb::basics::Exception const& ex) {
|
|
return ex.code();
|
|
} catch (...) {
|
|
return TRI_ERROR_INTERNAL;
|
|
}
|
|
|
|
return TRI_ERROR_NO_ERROR;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief restores the data of a collection TODO MOVE
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
int RestReplicationHandler::processRestoreData(
|
|
std::string const& colName, bool useRevision,
|
|
bool force, std::string& errorMsg) {
|
|
|
|
SingleCollectionTransaction trx(
|
|
StandaloneTransactionContext::Create(_vocbase), colName,
|
|
AccessMode::Type::WRITE);
|
|
trx.addHint(transaction::Hints::Hint::RECOVERY); // to turn off waitForSync!
|
|
|
|
int res = trx.begin();
|
|
|
|
if (res != TRI_ERROR_NO_ERROR) {
|
|
errorMsg =
|
|
"unable to start transaction: " + std::string(TRI_errno_string(res));
|
|
|
|
return res;
|
|
}
|
|
|
|
res = processRestoreDataBatch(trx, colName, useRevision, force,
|
|
errorMsg);
|
|
|
|
res = trx.finish(res);
|
|
|
|
return res;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief restores the data of a collection TODO MOVE
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
void RestReplicationHandler::handleCommandRestoreData() {
|
|
std::string const& colName = _request->value("collection");
|
|
|
|
if (colName.empty()) {
|
|
generateError(rest::ResponseCode::BAD, TRI_ERROR_HTTP_BAD_PARAMETER,
|
|
"invalid collection parameter, not given");
|
|
return;
|
|
}
|
|
|
|
bool recycleIds = false;
|
|
std::string const& value2 = _request->value("recycleIds");
|
|
|
|
if (!value2.empty()) {
|
|
recycleIds = StringUtils::boolean(value2);
|
|
}
|
|
|
|
bool force = false;
|
|
std::string const& value3 = _request->value("force");
|
|
|
|
if (!value3.empty()) {
|
|
force = StringUtils::boolean(value3);
|
|
}
|
|
|
|
std::string errorMsg;
|
|
|
|
int res = processRestoreData(colName, recycleIds, force, errorMsg);
|
|
|
|
if (res != TRI_ERROR_NO_ERROR) {
|
|
if (errorMsg.empty()) {
|
|
generateError(GeneralResponse::responseCode(res), res);
|
|
} else {
|
|
generateError(GeneralResponse::responseCode(res), res,
|
|
std::string(TRI_errno_string(res)) + ": " + errorMsg);
|
|
}
|
|
} else {
|
|
VPackBuilder result;
|
|
result.add(VPackValue(VPackValueType::Object));
|
|
result.add("result", VPackValue(true));
|
|
result.close();
|
|
generateResult(rest::ResponseCode::OK, result.slice());
|
|
}
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief produce list of keys for a specific collection
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
void RestReplicationHandler::handleCommandCreateKeys() {
|
|
std::string const& collection = _request->value("collection");
|
|
|
|
if (collection.empty()) {
|
|
generateError(rest::ResponseCode::BAD, TRI_ERROR_HTTP_BAD_PARAMETER,
|
|
"invalid collection parameter");
|
|
return;
|
|
}
|
|
|
|
TRI_voc_tick_t tickEnd = UINT64_MAX;
|
|
|
|
// determine end tick for keys
|
|
bool found;
|
|
std::string const& value = _request->value("to", found);
|
|
|
|
if (found) {
|
|
tickEnd = static_cast<TRI_voc_tick_t>(StringUtils::uint64(value));
|
|
}
|
|
|
|
arangodb::LogicalCollection* c = _vocbase->lookupCollection(collection);
|
|
|
|
if (c == nullptr) {
|
|
generateError(rest::ResponseCode::NOT_FOUND,
|
|
TRI_ERROR_ARANGO_COLLECTION_NOT_FOUND);
|
|
return;
|
|
}
|
|
|
|
arangodb::CollectionGuard guard(_vocbase, c->cid(), false);
|
|
|
|
arangodb::LogicalCollection* col = guard.collection();
|
|
TRI_ASSERT(col != nullptr);
|
|
|
|
// turn off the compaction for the collection
|
|
StorageEngine* engine = EngineSelectorFeature::ENGINE;
|
|
TRI_voc_tick_t id;
|
|
int res = engine->insertCompactionBlocker(_vocbase, 1200.0, id);
|
|
|
|
if (res != TRI_ERROR_NO_ERROR) {
|
|
THROW_ARANGO_EXCEPTION(res);
|
|
}
|
|
|
|
// initialize a container with the keys
|
|
auto keys =
|
|
std::make_unique<CollectionKeys>(_vocbase, col->name(), id, 300.0);
|
|
|
|
std::string const idString(std::to_string(keys->id()));
|
|
|
|
keys->create(tickEnd);
|
|
size_t const count = keys->count();
|
|
|
|
auto keysRepository = _vocbase->collectionKeys();
|
|
|
|
keysRepository->store(keys.get());
|
|
keys.release();
|
|
|
|
VPackBuilder result;
|
|
result.add(VPackValue(VPackValueType::Object));
|
|
result.add("id", VPackValue(idString));
|
|
result.add("count", VPackValue(count));
|
|
result.close();
|
|
generateResult(rest::ResponseCode::OK, result.slice());
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief returns all key ranges
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
void RestReplicationHandler::handleCommandGetKeys() {
|
|
std::vector<std::string> const& suffixes = _request->suffixes();
|
|
|
|
if (suffixes.size() != 2) {
|
|
generateError(rest::ResponseCode::BAD, TRI_ERROR_HTTP_BAD_PARAMETER,
|
|
"expecting GET /_api/replication/keys/<keys-id>");
|
|
return;
|
|
}
|
|
|
|
static uint64_t const DefaultChunkSize = 5000;
|
|
uint64_t chunkSize = DefaultChunkSize;
|
|
|
|
// determine chunk size
|
|
bool found;
|
|
std::string const& value = _request->value("chunkSize", found);
|
|
|
|
if (found) {
|
|
chunkSize = StringUtils::uint64(value);
|
|
if (chunkSize < 100) {
|
|
chunkSize = DefaultChunkSize;
|
|
} else if (chunkSize > 20000) {
|
|
chunkSize = 20000;
|
|
}
|
|
}
|
|
|
|
std::string const& id = suffixes[1];
|
|
|
|
auto keysRepository = _vocbase->collectionKeys();
|
|
TRI_ASSERT(keysRepository != nullptr);
|
|
|
|
auto collectionKeysId = static_cast<arangodb::CollectionKeysId>(
|
|
arangodb::basics::StringUtils::uint64(id));
|
|
|
|
auto collectionKeys = keysRepository->find(collectionKeysId);
|
|
|
|
if (collectionKeys == nullptr) {
|
|
generateError(GeneralResponse::responseCode(TRI_ERROR_CURSOR_NOT_FOUND),
|
|
TRI_ERROR_CURSOR_NOT_FOUND);
|
|
return;
|
|
}
|
|
|
|
try {
|
|
VPackBuilder b;
|
|
b.add(VPackValue(VPackValueType::Array));
|
|
|
|
TRI_voc_tick_t max = static_cast<TRI_voc_tick_t>(collectionKeys->count());
|
|
|
|
for (TRI_voc_tick_t from = 0; from < max; from += chunkSize) {
|
|
TRI_voc_tick_t to = from + chunkSize;
|
|
|
|
if (to > max) {
|
|
to = max;
|
|
}
|
|
|
|
auto result = collectionKeys->hashChunk(static_cast<size_t>(from),
|
|
static_cast<size_t>(to));
|
|
|
|
// Add a chunk
|
|
b.add(VPackValue(VPackValueType::Object));
|
|
b.add("low", VPackValue(std::get<0>(result)));
|
|
b.add("high", VPackValue(std::get<1>(result)));
|
|
b.add("hash", VPackValue(std::to_string(std::get<2>(result))));
|
|
b.close();
|
|
}
|
|
b.close();
|
|
|
|
collectionKeys->release();
|
|
generateResult(rest::ResponseCode::OK, b.slice());
|
|
} catch (...) {
|
|
collectionKeys->release();
|
|
throw;
|
|
}
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief returns date for a key range
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
void RestReplicationHandler::handleCommandFetchKeys() {
|
|
std::vector<std::string> const& suffixes = _request->suffixes();
|
|
|
|
if (suffixes.size() != 2) {
|
|
generateError(rest::ResponseCode::BAD, TRI_ERROR_HTTP_BAD_PARAMETER,
|
|
"expecting PUT /_api/replication/keys/<keys-id>");
|
|
return;
|
|
}
|
|
|
|
static uint64_t const DefaultChunkSize = 5000;
|
|
uint64_t chunkSize = DefaultChunkSize;
|
|
|
|
// determine chunk size
|
|
bool found;
|
|
std::string const& value1 = _request->value("chunkSize", found);
|
|
|
|
if (found) {
|
|
chunkSize = StringUtils::uint64(value1);
|
|
if (chunkSize < 100) {
|
|
chunkSize = DefaultChunkSize;
|
|
} else if (chunkSize > 20000) {
|
|
chunkSize = 20000;
|
|
}
|
|
}
|
|
|
|
std::string const& value2 = _request->value("chunk", found);
|
|
|
|
size_t chunk = 0;
|
|
|
|
if (found) {
|
|
chunk = static_cast<size_t>(StringUtils::uint64(value2));
|
|
}
|
|
|
|
std::string const& value3 = _request->value("type", found);
|
|
|
|
bool keys = true;
|
|
if (value3 == "keys") {
|
|
keys = true;
|
|
} else if (value3 == "docs") {
|
|
keys = false;
|
|
} else {
|
|
generateError(rest::ResponseCode::BAD, TRI_ERROR_HTTP_BAD_PARAMETER,
|
|
"invalid 'type' value");
|
|
return;
|
|
}
|
|
|
|
std::string const& id = suffixes[1];
|
|
|
|
auto keysRepository = _vocbase->collectionKeys();
|
|
TRI_ASSERT(keysRepository != nullptr);
|
|
|
|
auto collectionKeysId = static_cast<arangodb::CollectionKeysId>(
|
|
arangodb::basics::StringUtils::uint64(id));
|
|
|
|
auto collectionKeys = keysRepository->find(collectionKeysId);
|
|
|
|
if (collectionKeys == nullptr) {
|
|
generateError(GeneralResponse::responseCode(TRI_ERROR_CURSOR_NOT_FOUND),
|
|
TRI_ERROR_CURSOR_NOT_FOUND);
|
|
return;
|
|
}
|
|
|
|
try {
|
|
std::shared_ptr<TransactionContext> transactionContext =
|
|
StandaloneTransactionContext::Create(_vocbase);
|
|
|
|
VPackBuilder resultBuilder(transactionContext->getVPackOptions());
|
|
resultBuilder.openArray();
|
|
|
|
if (keys) {
|
|
collectionKeys->dumpKeys(resultBuilder, chunk,
|
|
static_cast<size_t>(chunkSize));
|
|
} else {
|
|
bool success;
|
|
std::shared_ptr<VPackBuilder> parsedIds =
|
|
parseVelocyPackBody(&VPackOptions::Defaults, success);
|
|
if (!success) {
|
|
// error already created
|
|
collectionKeys->release();
|
|
return;
|
|
}
|
|
collectionKeys->dumpDocs(resultBuilder, chunk,
|
|
static_cast<size_t>(chunkSize),
|
|
parsedIds->slice());
|
|
}
|
|
|
|
resultBuilder.close();
|
|
|
|
collectionKeys->release();
|
|
|
|
generateResult(rest::ResponseCode::OK, resultBuilder.slice(),
|
|
transactionContext);
|
|
return;
|
|
} catch (...) {
|
|
collectionKeys->release();
|
|
throw;
|
|
}
|
|
}
|
|
|
|
void RestReplicationHandler::handleCommandRemoveKeys() {
|
|
std::vector<std::string> const& suffixes = _request->suffixes();
|
|
|
|
if (suffixes.size() != 2) {
|
|
generateError(rest::ResponseCode::BAD, TRI_ERROR_HTTP_BAD_PARAMETER,
|
|
"expecting DELETE /_api/replication/keys/<keys-id>");
|
|
return;
|
|
}
|
|
|
|
std::string const& id = suffixes[1];
|
|
|
|
auto keys = _vocbase->collectionKeys();
|
|
TRI_ASSERT(keys != nullptr);
|
|
|
|
auto collectionKeysId = static_cast<arangodb::CollectionKeysId>(
|
|
arangodb::basics::StringUtils::uint64(id));
|
|
bool found = keys->remove(collectionKeysId);
|
|
|
|
if (!found) {
|
|
generateError(rest::ResponseCode::NOT_FOUND, TRI_ERROR_CURSOR_NOT_FOUND);
|
|
return;
|
|
}
|
|
|
|
VPackBuilder resultBuilder;
|
|
resultBuilder.openObject();
|
|
resultBuilder.add("id", VPackValue(id)); // id as a string
|
|
resultBuilder.add("error", VPackValue(false));
|
|
resultBuilder.add("code",
|
|
VPackValue(static_cast<int>(rest::ResponseCode::ACCEPTED)));
|
|
resultBuilder.close();
|
|
|
|
generateResult(rest::ResponseCode::ACCEPTED, resultBuilder.slice());
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief was docuBlock JSF_get_api_replication_dump
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
void RestReplicationHandler::handleCommandDump() {
|
|
std::string const& collection = _request->value("collection");
|
|
|
|
if (collection.empty()) {
|
|
generateError(rest::ResponseCode::BAD, TRI_ERROR_HTTP_BAD_PARAMETER,
|
|
"invalid collection parameter");
|
|
return;
|
|
}
|
|
|
|
// determine start tick for dump
|
|
TRI_voc_tick_t tickStart = 0;
|
|
TRI_voc_tick_t tickEnd = static_cast<TRI_voc_tick_t>(UINT64_MAX);
|
|
bool flush = true; // flush WAL before dumping?
|
|
bool withTicks = true;
|
|
uint64_t flushWait = 0;
|
|
|
|
// determine flush WAL value
|
|
bool found;
|
|
std::string const& value1 = _request->value("flush", found);
|
|
|
|
if (found) {
|
|
flush = StringUtils::boolean(value1);
|
|
}
|
|
|
|
// determine flush WAL wait time value
|
|
std::string const& value3 = _request->value("flushWait", found);
|
|
|
|
if (found) {
|
|
flushWait = StringUtils::uint64(value3);
|
|
if (flushWait > 60) {
|
|
flushWait = 60;
|
|
}
|
|
}
|
|
|
|
// determine start tick for dump
|
|
std::string const& value4 = _request->value("from", found);
|
|
|
|
if (found) {
|
|
tickStart = (TRI_voc_tick_t)StringUtils::uint64(value4);
|
|
}
|
|
|
|
// determine end tick for dump
|
|
std::string const& value5 = _request->value("to", found);
|
|
|
|
if (found) {
|
|
tickEnd = (TRI_voc_tick_t)StringUtils::uint64(value5);
|
|
}
|
|
|
|
if (tickStart > tickEnd || tickEnd == 0) {
|
|
generateError(rest::ResponseCode::BAD, TRI_ERROR_HTTP_BAD_PARAMETER,
|
|
"invalid from/to values");
|
|
return;
|
|
}
|
|
|
|
bool includeSystem = true;
|
|
|
|
std::string const& value6 = _request->value("includeSystem", found);
|
|
|
|
if (found) {
|
|
includeSystem = StringUtils::boolean(value6);
|
|
}
|
|
|
|
std::string const& value7 = _request->value("ticks", found);
|
|
|
|
if (found) {
|
|
withTicks = StringUtils::boolean(value7);
|
|
}
|
|
|
|
bool compat28 = false;
|
|
std::string const& value8 = _request->value("compat28", found);
|
|
|
|
if (found) {
|
|
compat28 = StringUtils::boolean(value8);
|
|
}
|
|
|
|
arangodb::LogicalCollection* c = _vocbase->lookupCollection(collection);
|
|
|
|
if (c == nullptr) {
|
|
generateError(rest::ResponseCode::NOT_FOUND,
|
|
TRI_ERROR_ARANGO_COLLECTION_NOT_FOUND);
|
|
return;
|
|
}
|
|
|
|
LOG_TOPIC(TRACE, arangodb::Logger::FIXME) << "requested collection dump for collection '" << collection
|
|
<< "', tickStart: " << tickStart << ", tickEnd: " << tickEnd;
|
|
|
|
if (flush) {
|
|
MMFilesLogfileManager::instance()->flush(true, true, false);
|
|
|
|
// additionally wait for the collector
|
|
if (flushWait > 0) {
|
|
MMFilesLogfileManager::instance()->waitForCollectorQueue(
|
|
c->cid(), static_cast<double>(flushWait));
|
|
}
|
|
}
|
|
|
|
arangodb::CollectionGuard guard(_vocbase, c->cid(), false);
|
|
|
|
arangodb::LogicalCollection* col = guard.collection();
|
|
TRI_ASSERT(col != nullptr);
|
|
|
|
auto transactionContext =
|
|
std::make_shared<StandaloneTransactionContext>(_vocbase);
|
|
|
|
// initialize the dump container
|
|
TRI_replication_dump_t dump(transactionContext,
|
|
static_cast<size_t>(determineChunkSize()),
|
|
includeSystem, 0);
|
|
|
|
if (compat28) {
|
|
dump._compat28 = true;
|
|
}
|
|
|
|
int res =
|
|
TRI_DumpCollectionReplication(&dump, col, tickStart, tickEnd, withTicks);
|
|
|
|
if (res != TRI_ERROR_NO_ERROR) {
|
|
THROW_ARANGO_EXCEPTION(res);
|
|
}
|
|
|
|
// generate the result
|
|
size_t const length = TRI_LengthStringBuffer(dump._buffer);
|
|
|
|
if (length == 0) {
|
|
resetResponse(rest::ResponseCode::NO_CONTENT);
|
|
} else {
|
|
resetResponse(rest::ResponseCode::OK);
|
|
}
|
|
|
|
// TODO needs to generalized
|
|
auto response = dynamic_cast<HttpResponse*>(_response.get());
|
|
|
|
if (response == nullptr) {
|
|
THROW_ARANGO_EXCEPTION_MESSAGE(TRI_ERROR_INTERNAL, "invalid response type");
|
|
}
|
|
|
|
response->setContentType(rest::ContentType::DUMP);
|
|
|
|
// set headers
|
|
_response->setHeaderNC(TRI_REPLICATION_HEADER_CHECKMORE,
|
|
(dump._hasMore ? "true" : "false"));
|
|
|
|
_response->setHeaderNC(TRI_REPLICATION_HEADER_LASTINCLUDED,
|
|
StringUtils::itoa(dump._lastFoundTick));
|
|
|
|
// transfer ownership of the buffer contents
|
|
response->body().set(dump._buffer);
|
|
|
|
// avoid double freeing
|
|
TRI_StealStringBuffer(dump._buffer);
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief was docuBlock JSF_put_api_replication_makeSlave
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
void RestReplicationHandler::handleCommandMakeSlave() {
|
|
bool success;
|
|
std::shared_ptr<VPackBuilder> parsedBody =
|
|
parseVelocyPackBody(&VPackOptions::Defaults, success);
|
|
if (!success) {
|
|
// error already created
|
|
return;
|
|
}
|
|
VPackSlice const body = parsedBody->slice();
|
|
|
|
std::string const endpoint =
|
|
VelocyPackHelper::getStringValue(body, "endpoint", "");
|
|
|
|
if (endpoint.empty()) {
|
|
generateError(rest::ResponseCode::BAD, TRI_ERROR_HTTP_BAD_PARAMETER,
|
|
"<endpoint> must be a valid endpoint");
|
|
return;
|
|
}
|
|
|
|
std::string const database =
|
|
VelocyPackHelper::getStringValue(body, "database", _vocbase->name());
|
|
std::string const username =
|
|
VelocyPackHelper::getStringValue(body, "username", "");
|
|
std::string const password =
|
|
VelocyPackHelper::getStringValue(body, "password", "");
|
|
std::string const jwt = VelocyPackHelper::getStringValue(body, "jwt", "");
|
|
std::string const restrictType =
|
|
VelocyPackHelper::getStringValue(body, "restrictType", "");
|
|
|
|
// initialize some defaults to copy from
|
|
TRI_replication_applier_configuration_t defaults;
|
|
|
|
// initialize target configuration
|
|
TRI_replication_applier_configuration_t config;
|
|
|
|
config._endpoint = endpoint;
|
|
config._database = database;
|
|
config._username = username;
|
|
config._password = password;
|
|
config._jwt = jwt;
|
|
config._includeSystem =
|
|
VelocyPackHelper::getBooleanValue(body, "includeSystem", true);
|
|
config._requestTimeout = VelocyPackHelper::getNumericValue<double>(
|
|
body, "requestTimeout", defaults._requestTimeout);
|
|
config._connectTimeout = VelocyPackHelper::getNumericValue<double>(
|
|
body, "connectTimeout", defaults._connectTimeout);
|
|
config._ignoreErrors = VelocyPackHelper::getNumericValue<uint64_t>(
|
|
body, "ignoreErrors", defaults._ignoreErrors);
|
|
config._maxConnectRetries = VelocyPackHelper::getNumericValue<uint64_t>(
|
|
body, "maxConnectRetries", defaults._maxConnectRetries);
|
|
config._sslProtocol = VelocyPackHelper::getNumericValue<uint32_t>(
|
|
body, "sslProtocol", defaults._sslProtocol);
|
|
config._chunkSize = VelocyPackHelper::getNumericValue<uint64_t>(
|
|
body, "chunkSize", defaults._chunkSize);
|
|
config._autoStart = true;
|
|
config._adaptivePolling = VelocyPackHelper::getBooleanValue(
|
|
body, "adaptivePolling", defaults._adaptivePolling);
|
|
config._autoResync = VelocyPackHelper::getBooleanValue(body, "autoResync",
|
|
defaults._autoResync);
|
|
config._verbose =
|
|
VelocyPackHelper::getBooleanValue(body, "verbose", defaults._verbose);
|
|
config._incremental = VelocyPackHelper::getBooleanValue(
|
|
body, "incremental", defaults._incremental);
|
|
config._useCollectionId = VelocyPackHelper::getBooleanValue(
|
|
body, "useCollectionId", defaults._useCollectionId);
|
|
config._requireFromPresent = VelocyPackHelper::getBooleanValue(
|
|
body, "requireFromPresent", defaults._requireFromPresent);
|
|
config._restrictType = VelocyPackHelper::getStringValue(
|
|
body, "restrictType", defaults._restrictType);
|
|
config._connectionRetryWaitTime = static_cast<uint64_t>(
|
|
1000.0 * 1000.0 *
|
|
VelocyPackHelper::getNumericValue<double>(
|
|
body, "connectionRetryWaitTime",
|
|
static_cast<double>(defaults._connectionRetryWaitTime) /
|
|
(1000.0 * 1000.0)));
|
|
config._initialSyncMaxWaitTime = static_cast<uint64_t>(
|
|
1000.0 * 1000.0 *
|
|
VelocyPackHelper::getNumericValue<double>(
|
|
body, "initialSyncMaxWaitTime",
|
|
static_cast<double>(defaults._initialSyncMaxWaitTime) /
|
|
(1000.0 * 1000.0)));
|
|
config._idleMinWaitTime = static_cast<uint64_t>(
|
|
1000.0 * 1000.0 *
|
|
VelocyPackHelper::getNumericValue<double>(
|
|
body, "idleMinWaitTime",
|
|
static_cast<double>(defaults._idleMinWaitTime) / (1000.0 * 1000.0)));
|
|
config._idleMaxWaitTime = static_cast<uint64_t>(
|
|
1000.0 * 1000.0 *
|
|
VelocyPackHelper::getNumericValue<double>(
|
|
body, "idleMaxWaitTime",
|
|
static_cast<double>(defaults._idleMaxWaitTime) / (1000.0 * 1000.0)));
|
|
config._autoResyncRetries = VelocyPackHelper::getNumericValue<uint64_t>(
|
|
body, "autoResyncRetries", defaults._autoResyncRetries);
|
|
|
|
VPackSlice const restriction = body.get("restrictCollections");
|
|
|
|
if (restriction.isArray()) {
|
|
VPackValueLength const n = restriction.length();
|
|
|
|
for (VPackValueLength i = 0; i < n; ++i) {
|
|
VPackSlice const cname = restriction.at(i);
|
|
if (cname.isString()) {
|
|
config._restrictCollections.emplace(cname.copyString(), true);
|
|
}
|
|
}
|
|
}
|
|
|
|
// now the configuration is complete
|
|
|
|
if ((restrictType.empty() && !config._restrictCollections.empty()) ||
|
|
(!restrictType.empty() && config._restrictCollections.empty()) ||
|
|
(!restrictType.empty() && restrictType != "include" &&
|
|
restrictType != "exclude")) {
|
|
generateError(rest::ResponseCode::BAD, TRI_ERROR_HTTP_BAD_PARAMETER,
|
|
"invalid value for <restrictCollections> or <restrictType>");
|
|
return;
|
|
}
|
|
|
|
// forget about any existing replication applier configuration
|
|
int res = _vocbase->replicationApplier()->forget();
|
|
|
|
if (res != TRI_ERROR_NO_ERROR) {
|
|
THROW_ARANGO_EXCEPTION(res);
|
|
}
|
|
|
|
// start initial synchronization
|
|
TRI_voc_tick_t lastLogTick = 0;
|
|
TRI_voc_tick_t barrierId = 0;
|
|
std::string errorMsg = "";
|
|
{
|
|
InitialSyncer syncer(_vocbase, &config, config._restrictCollections,
|
|
restrictType, false);
|
|
|
|
res = TRI_ERROR_NO_ERROR;
|
|
|
|
try {
|
|
res = syncer.run(errorMsg, false);
|
|
|
|
// steal the barrier from the syncer
|
|
barrierId = syncer.stealBarrier();
|
|
} catch (...) {
|
|
errorMsg = "caught an exception";
|
|
res = TRI_ERROR_INTERNAL;
|
|
}
|
|
|
|
lastLogTick = syncer.getLastLogTick();
|
|
}
|
|
|
|
if (res != TRI_ERROR_NO_ERROR) {
|
|
THROW_ARANGO_EXCEPTION_MESSAGE(res, errorMsg);
|
|
return;
|
|
}
|
|
|
|
res =
|
|
TRI_ConfigureReplicationApplier(_vocbase->replicationApplier(), &config);
|
|
|
|
if (res != TRI_ERROR_NO_ERROR) {
|
|
THROW_ARANGO_EXCEPTION(res);
|
|
return;
|
|
}
|
|
|
|
res = _vocbase->replicationApplier()->start(lastLogTick, true, barrierId);
|
|
|
|
if (res != TRI_ERROR_NO_ERROR) {
|
|
THROW_ARANGO_EXCEPTION(res);
|
|
return;
|
|
}
|
|
|
|
std::shared_ptr<VPackBuilder> result =
|
|
_vocbase->replicationApplier()->toVelocyPack();
|
|
generateResult(rest::ResponseCode::OK, result->slice());
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief was docuBlock JSF_put_api_replication_synchronize
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
void RestReplicationHandler::handleCommandSync() {
|
|
bool success;
|
|
std::shared_ptr<VPackBuilder> parsedBody =
|
|
parseVelocyPackBody(&VPackOptions::Defaults, success);
|
|
if (!success) {
|
|
// error already created
|
|
return;
|
|
}
|
|
|
|
VPackSlice const body = parsedBody->slice();
|
|
|
|
std::string const endpoint =
|
|
VelocyPackHelper::getStringValue(body, "endpoint", "");
|
|
|
|
if (endpoint.empty()) {
|
|
generateError(rest::ResponseCode::BAD, TRI_ERROR_HTTP_BAD_PARAMETER,
|
|
"<endpoint> must be a valid endpoint");
|
|
return;
|
|
}
|
|
|
|
std::string const database =
|
|
VelocyPackHelper::getStringValue(body, "database", _vocbase->name());
|
|
std::string const username =
|
|
VelocyPackHelper::getStringValue(body, "username", "");
|
|
std::string const password =
|
|
VelocyPackHelper::getStringValue(body, "password", "");
|
|
std::string const jwt = VelocyPackHelper::getStringValue(body, "jwt", "");
|
|
bool const verbose =
|
|
VelocyPackHelper::getBooleanValue(body, "verbose", false);
|
|
bool const includeSystem =
|
|
VelocyPackHelper::getBooleanValue(body, "includeSystem", true);
|
|
bool const incremental =
|
|
VelocyPackHelper::getBooleanValue(body, "incremental", false);
|
|
bool const keepBarrier =
|
|
VelocyPackHelper::getBooleanValue(body, "keepBarrier", false);
|
|
bool const useCollectionId =
|
|
VelocyPackHelper::getBooleanValue(body, "useCollectionId", true);
|
|
|
|
std::unordered_map<std::string, bool> restrictCollections;
|
|
VPackSlice const restriction = body.get("restrictCollections");
|
|
|
|
if (restriction.isArray()) {
|
|
for (VPackSlice const& cname : VPackArrayIterator(restriction)) {
|
|
if (cname.isString()) {
|
|
restrictCollections.insert(
|
|
std::pair<std::string, bool>(cname.copyString(), true));
|
|
}
|
|
}
|
|
}
|
|
|
|
std::string restrictType =
|
|
VelocyPackHelper::getStringValue(body, "restrictType", "");
|
|
|
|
if ((restrictType.empty() && !restrictCollections.empty()) ||
|
|
(!restrictType.empty() && restrictCollections.empty()) ||
|
|
(!restrictType.empty() && restrictType != "include" &&
|
|
restrictType != "exclude")) {
|
|
generateError(rest::ResponseCode::BAD, TRI_ERROR_HTTP_BAD_PARAMETER,
|
|
"invalid value for <restrictCollections> or <restrictType>");
|
|
return;
|
|
}
|
|
|
|
TRI_replication_applier_configuration_t config;
|
|
config._endpoint = endpoint;
|
|
config._database = database;
|
|
config._username = username;
|
|
config._password = password;
|
|
config._jwt = jwt;
|
|
config._includeSystem = includeSystem;
|
|
config._verbose = verbose;
|
|
config._useCollectionId = useCollectionId;
|
|
|
|
// wait until all data in current logfile got synced
|
|
MMFilesLogfileManager::instance()->waitForSync(5.0);
|
|
|
|
InitialSyncer syncer(_vocbase, &config, restrictCollections, restrictType,
|
|
verbose);
|
|
|
|
std::string errorMsg = "";
|
|
|
|
/*int res = */ syncer.run(errorMsg, incremental);
|
|
|
|
VPackBuilder result;
|
|
result.add(VPackValue(VPackValueType::Object));
|
|
|
|
result.add("collections", VPackValue(VPackValueType::Array));
|
|
|
|
for (auto const& it : syncer.getProcessedCollections()) {
|
|
std::string const cidString = StringUtils::itoa(it.first);
|
|
// Insert a collection
|
|
result.add(VPackValue(VPackValueType::Object));
|
|
result.add("id", VPackValue(cidString));
|
|
result.add("name", VPackValue(it.second));
|
|
result.close(); // one collection
|
|
}
|
|
|
|
result.close(); // collections
|
|
|
|
auto tickString = std::to_string(syncer.getLastLogTick());
|
|
result.add("lastLogTick", VPackValue(tickString));
|
|
|
|
if (keepBarrier) {
|
|
auto barrierId = std::to_string(syncer.stealBarrier());
|
|
result.add("barrierId", VPackValue(barrierId));
|
|
}
|
|
|
|
result.close(); // base
|
|
generateResult(rest::ResponseCode::OK, result.slice());
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief was docuBlock JSF_put_api_replication_serverID
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
void RestReplicationHandler::handleCommandServerId() {
|
|
VPackBuilder result;
|
|
result.add(VPackValue(VPackValueType::Object));
|
|
std::string const serverId = StringUtils::itoa(ServerIdFeature::getId());
|
|
result.add("serverId", VPackValue(serverId));
|
|
result.close();
|
|
generateResult(rest::ResponseCode::OK, result.slice());
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief was docuBlock JSF_put_api_replication_applier
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
void RestReplicationHandler::handleCommandApplierGetConfig() {
|
|
TRI_ASSERT(_vocbase->replicationApplier() != nullptr);
|
|
|
|
TRI_replication_applier_configuration_t config;
|
|
|
|
{
|
|
READ_LOCKER(readLocker, _vocbase->replicationApplier()->_statusLock);
|
|
config.update(&_vocbase->replicationApplier()->_configuration);
|
|
}
|
|
std::shared_ptr<VPackBuilder> configBuilder = config.toVelocyPack(false);
|
|
generateResult(rest::ResponseCode::OK, configBuilder->slice());
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief was docuBlock JSF_put_api_replication_applier_adjust
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
void RestReplicationHandler::handleCommandApplierSetConfig() {
|
|
TRI_ASSERT(_vocbase->replicationApplier() != nullptr);
|
|
|
|
TRI_replication_applier_configuration_t config;
|
|
|
|
bool success;
|
|
std::shared_ptr<VPackBuilder> parsedBody =
|
|
parseVelocyPackBody(&VPackOptions::Defaults, success);
|
|
|
|
if (!success) {
|
|
// error already created
|
|
return;
|
|
}
|
|
VPackSlice const body = parsedBody->slice();
|
|
|
|
{
|
|
READ_LOCKER(readLocker, _vocbase->replicationApplier()->_statusLock);
|
|
config.update(&_vocbase->replicationApplier()->_configuration);
|
|
}
|
|
|
|
std::string const endpoint =
|
|
VelocyPackHelper::getStringValue(body, "endpoint", "");
|
|
|
|
if (!endpoint.empty()) {
|
|
config._endpoint = endpoint;
|
|
}
|
|
|
|
config._database =
|
|
VelocyPackHelper::getStringValue(body, "database", _vocbase->name());
|
|
|
|
VPackSlice const username = body.get("username");
|
|
if (username.isString()) {
|
|
config._username = username.copyString();
|
|
}
|
|
|
|
VPackSlice const password = body.get("password");
|
|
if (password.isString()) {
|
|
config._password = password.copyString();
|
|
}
|
|
|
|
VPackSlice const jwt = body.get("jwt");
|
|
if (jwt.isString()) {
|
|
config._jwt = jwt.copyString();
|
|
}
|
|
|
|
config._requestTimeout = VelocyPackHelper::getNumericValue<double>(
|
|
body, "requestTimeout", config._requestTimeout);
|
|
config._connectTimeout = VelocyPackHelper::getNumericValue<double>(
|
|
body, "connectTimeout", config._connectTimeout);
|
|
config._ignoreErrors = VelocyPackHelper::getNumericValue<uint64_t>(
|
|
body, "ignoreErrors", config._ignoreErrors);
|
|
config._maxConnectRetries = VelocyPackHelper::getNumericValue<uint64_t>(
|
|
body, "maxConnectRetries", config._maxConnectRetries);
|
|
config._sslProtocol = VelocyPackHelper::getNumericValue<uint32_t>(
|
|
body, "sslProtocol", config._sslProtocol);
|
|
config._chunkSize = VelocyPackHelper::getNumericValue<uint64_t>(
|
|
body, "chunkSize", config._chunkSize);
|
|
config._autoStart =
|
|
VelocyPackHelper::getBooleanValue(body, "autoStart", config._autoStart);
|
|
config._adaptivePolling = VelocyPackHelper::getBooleanValue(
|
|
body, "adaptivePolling", config._adaptivePolling);
|
|
config._autoResync =
|
|
VelocyPackHelper::getBooleanValue(body, "autoResync", config._autoResync);
|
|
config._includeSystem = VelocyPackHelper::getBooleanValue(
|
|
body, "includeSystem", config._includeSystem);
|
|
config._verbose =
|
|
VelocyPackHelper::getBooleanValue(body, "verbose", config._verbose);
|
|
config._incremental = VelocyPackHelper::getBooleanValue(body, "incremental",
|
|
config._incremental);
|
|
config._requireFromPresent = VelocyPackHelper::getBooleanValue(
|
|
body, "requireFromPresent", config._requireFromPresent);
|
|
config._restrictType = VelocyPackHelper::getStringValue(body, "restrictType",
|
|
config._restrictType);
|
|
config._connectionRetryWaitTime = static_cast<uint64_t>(
|
|
1000.0 * 1000.0 *
|
|
VelocyPackHelper::getNumericValue<double>(
|
|
body, "connectionRetryWaitTime",
|
|
static_cast<double>(config._connectionRetryWaitTime) /
|
|
(1000.0 * 1000.0)));
|
|
config._initialSyncMaxWaitTime = static_cast<uint64_t>(
|
|
1000.0 * 1000.0 *
|
|
VelocyPackHelper::getNumericValue<double>(
|
|
body, "initialSyncMaxWaitTime",
|
|
static_cast<double>(config._initialSyncMaxWaitTime) /
|
|
(1000.0 * 1000.0)));
|
|
config._idleMinWaitTime = static_cast<uint64_t>(
|
|
1000.0 * 1000.0 *
|
|
VelocyPackHelper::getNumericValue<double>(
|
|
body, "idleMinWaitTime",
|
|
static_cast<double>(config._idleMinWaitTime) / (1000.0 * 1000.0)));
|
|
config._idleMaxWaitTime = static_cast<uint64_t>(
|
|
1000.0 * 1000.0 *
|
|
VelocyPackHelper::getNumericValue<double>(
|
|
body, "idleMaxWaitTime",
|
|
static_cast<double>(config._idleMaxWaitTime) / (1000.0 * 1000.0)));
|
|
config._autoResyncRetries = VelocyPackHelper::getNumericValue<uint64_t>(
|
|
body, "autoResyncRetries", config._autoResyncRetries);
|
|
|
|
VPackSlice const restriction = body.get("restrictCollections");
|
|
if (restriction.isArray()) {
|
|
config._restrictCollections.clear();
|
|
for (VPackSlice const& collection : VPackArrayIterator(restriction)) {
|
|
if (collection.isString()) {
|
|
config._restrictCollections.emplace(
|
|
std::make_pair(collection.copyString(), true));
|
|
}
|
|
}
|
|
}
|
|
|
|
int res =
|
|
TRI_ConfigureReplicationApplier(_vocbase->replicationApplier(), &config);
|
|
|
|
if (res != TRI_ERROR_NO_ERROR) {
|
|
THROW_ARANGO_EXCEPTION(res);
|
|
}
|
|
|
|
handleCommandApplierGetConfig();
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief was docuBlock JSF_put_api_replication_applier_start
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
void RestReplicationHandler::handleCommandApplierStart() {
|
|
TRI_ASSERT(_vocbase->replicationApplier() != nullptr);
|
|
|
|
bool found;
|
|
std::string const& value1 = _request->value("from", found);
|
|
|
|
TRI_voc_tick_t initialTick = 0;
|
|
bool useTick = false;
|
|
|
|
if (found) {
|
|
// query parameter "from" specified
|
|
initialTick = (TRI_voc_tick_t)StringUtils::uint64(value1);
|
|
useTick = true;
|
|
}
|
|
|
|
TRI_voc_tick_t barrierId = 0;
|
|
std::string const& value2 = _request->value("barrierId", found);
|
|
|
|
if (found) {
|
|
// query parameter "barrierId" specified
|
|
barrierId = (TRI_voc_tick_t)StringUtils::uint64(value2);
|
|
}
|
|
|
|
int res =
|
|
_vocbase->replicationApplier()->start(initialTick, useTick, barrierId);
|
|
|
|
if (res != TRI_ERROR_NO_ERROR) {
|
|
THROW_ARANGO_EXCEPTION(res);
|
|
}
|
|
|
|
handleCommandApplierGetState();
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief was docuBlock JSF_put_api_replication_applier_stop
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
void RestReplicationHandler::handleCommandApplierStop() {
|
|
TRI_ASSERT(_vocbase->replicationApplier() != nullptr);
|
|
|
|
int res = _vocbase->replicationApplier()->stop(true);
|
|
|
|
if (res != TRI_ERROR_NO_ERROR) {
|
|
THROW_ARANGO_EXCEPTION(res);
|
|
}
|
|
|
|
handleCommandApplierGetState();
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief was docuBlock JSF_get_api_replication_applier_state
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
void RestReplicationHandler::handleCommandApplierGetState() {
|
|
TRI_ASSERT(_vocbase->replicationApplier() != nullptr);
|
|
|
|
std::shared_ptr<VPackBuilder> result =
|
|
_vocbase->replicationApplier()->toVelocyPack();
|
|
generateResult(rest::ResponseCode::OK, result->slice());
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief delete the state of the replication applier
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
void RestReplicationHandler::handleCommandApplierDeleteState() {
|
|
TRI_ASSERT(_vocbase->replicationApplier() != nullptr);
|
|
|
|
int res = _vocbase->replicationApplier()->forget();
|
|
|
|
if (res != TRI_ERROR_NO_ERROR) {
|
|
THROW_ARANGO_EXCEPTION(res);
|
|
}
|
|
|
|
handleCommandApplierGetState();
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief add a follower of a shard to the list of followers
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
void RestReplicationHandler::handleCommandAddFollower() {
|
|
bool success = false;
|
|
std::shared_ptr<VPackBuilder> parsedBody =
|
|
parseVelocyPackBody(&VPackOptions::Defaults, success);
|
|
if (!success) {
|
|
// error already created
|
|
return;
|
|
}
|
|
VPackSlice const body = parsedBody->slice();
|
|
if (!body.isObject()) {
|
|
generateError(rest::ResponseCode::BAD, TRI_ERROR_HTTP_BAD_PARAMETER,
|
|
"body needs to be an object with attributes 'followerId' "
|
|
"and 'shard'");
|
|
return;
|
|
}
|
|
VPackSlice const followerId = body.get("followerId");
|
|
VPackSlice const shard = body.get("shard");
|
|
if (!followerId.isString() || !shard.isString()) {
|
|
generateError(rest::ResponseCode::BAD, TRI_ERROR_HTTP_BAD_PARAMETER,
|
|
"'followerId' and 'shard' attributes must be strings");
|
|
return;
|
|
}
|
|
|
|
auto col = _vocbase->lookupCollection(shard.copyString());
|
|
|
|
if (col == nullptr) {
|
|
generateError(rest::ResponseCode::SERVER_ERROR,
|
|
TRI_ERROR_ARANGO_COLLECTION_NOT_FOUND,
|
|
"did not find collection");
|
|
return;
|
|
}
|
|
|
|
col->followers()->add(followerId.copyString());
|
|
|
|
VPackBuilder b;
|
|
{
|
|
VPackObjectBuilder bb(&b);
|
|
b.add("error", VPackValue(false));
|
|
}
|
|
|
|
generateResult(rest::ResponseCode::OK, b.slice());
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief remove a follower of a shard from the list of followers
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
void RestReplicationHandler::handleCommandRemoveFollower() {
|
|
bool success = false;
|
|
std::shared_ptr<VPackBuilder> parsedBody =
|
|
parseVelocyPackBody(&VPackOptions::Defaults, success);
|
|
if (!success) {
|
|
// error already created
|
|
return;
|
|
}
|
|
VPackSlice const body = parsedBody->slice();
|
|
if (!body.isObject()) {
|
|
generateError(rest::ResponseCode::BAD, TRI_ERROR_HTTP_BAD_PARAMETER,
|
|
"body needs to be an object with attributes 'followerId' "
|
|
"and 'shard'");
|
|
return;
|
|
}
|
|
VPackSlice const followerId = body.get("followerId");
|
|
VPackSlice const shard = body.get("shard");
|
|
if (!followerId.isString() || !shard.isString()) {
|
|
generateError(rest::ResponseCode::BAD, TRI_ERROR_HTTP_BAD_PARAMETER,
|
|
"'followerId' and 'shard' attributes must be strings");
|
|
return;
|
|
}
|
|
|
|
auto col = _vocbase->lookupCollection(shard.copyString());
|
|
|
|
if (col == nullptr) {
|
|
generateError(rest::ResponseCode::SERVER_ERROR,
|
|
TRI_ERROR_ARANGO_COLLECTION_NOT_FOUND,
|
|
"did not find collection");
|
|
return;
|
|
}
|
|
col->followers()->remove(followerId.copyString());
|
|
|
|
VPackBuilder b;
|
|
{
|
|
VPackObjectBuilder bb(&b);
|
|
b.add("error", VPackValue(false));
|
|
}
|
|
|
|
generateResult(rest::ResponseCode::OK, b.slice());
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief hold a read lock on a collection to stop writes temporarily
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
void RestReplicationHandler::handleCommandHoldReadLockCollection() {
|
|
bool success = false;
|
|
std::shared_ptr<VPackBuilder> parsedBody =
|
|
parseVelocyPackBody(&VPackOptions::Defaults, success);
|
|
if (!success) {
|
|
// error already created
|
|
return;
|
|
}
|
|
VPackSlice const body = parsedBody->slice();
|
|
if (!body.isObject()) {
|
|
generateError(rest::ResponseCode::BAD, TRI_ERROR_HTTP_BAD_PARAMETER,
|
|
"body needs to be an object with attributes 'collection', "
|
|
"'ttl' and 'id'");
|
|
return;
|
|
}
|
|
VPackSlice const collection = body.get("collection");
|
|
VPackSlice const ttlSlice = body.get("ttl");
|
|
VPackSlice const idSlice = body.get("id");
|
|
if (!collection.isString() || !ttlSlice.isNumber() || !idSlice.isString()) {
|
|
generateError(rest::ResponseCode::BAD, TRI_ERROR_HTTP_BAD_PARAMETER,
|
|
"'collection' must be a string and 'ttl' a number and "
|
|
"'id' a string");
|
|
return;
|
|
}
|
|
std::string id = idSlice.copyString();
|
|
|
|
auto col = _vocbase->lookupCollection(collection.copyString());
|
|
|
|
if (col == nullptr) {
|
|
generateError(rest::ResponseCode::SERVER_ERROR,
|
|
TRI_ERROR_ARANGO_COLLECTION_NOT_FOUND,
|
|
"did not find collection");
|
|
return;
|
|
}
|
|
|
|
double ttl = 0.0;
|
|
if (ttlSlice.isInteger()) {
|
|
try {
|
|
ttl = static_cast<double>(ttlSlice.getInt());
|
|
} catch (...) {
|
|
}
|
|
} else {
|
|
try {
|
|
ttl = ttlSlice.getDouble();
|
|
} catch (...) {
|
|
}
|
|
}
|
|
|
|
if (col->getStatusLocked() != TRI_VOC_COL_STATUS_LOADED) {
|
|
generateError(rest::ResponseCode::SERVER_ERROR,
|
|
TRI_ERROR_ARANGO_COLLECTION_NOT_LOADED,
|
|
"collection not loaded");
|
|
return;
|
|
}
|
|
|
|
{
|
|
CONDITION_LOCKER(locker, _condVar);
|
|
_holdReadLockJobs.emplace(id, false);
|
|
}
|
|
|
|
auto trxContext = StandaloneTransactionContext::Create(_vocbase);
|
|
SingleCollectionTransaction trx(trxContext, col->cid(), AccessMode::Type::READ);
|
|
trx.addHint(transaction::Hints::Hint::LOCK_ENTIRELY);
|
|
int res = trx.begin();
|
|
if (res != TRI_ERROR_NO_ERROR) {
|
|
generateError(rest::ResponseCode::SERVER_ERROR,
|
|
TRI_ERROR_TRANSACTION_INTERNAL,
|
|
"cannot begin read transaction");
|
|
return;
|
|
}
|
|
|
|
{
|
|
CONDITION_LOCKER(locker, _condVar);
|
|
auto it = _holdReadLockJobs.find(id);
|
|
if (it == _holdReadLockJobs.end()) {
|
|
// Entry has been removed since, so we cancel the whole thing
|
|
// right away and generate an error:
|
|
generateError(rest::ResponseCode::SERVER_ERROR,
|
|
TRI_ERROR_TRANSACTION_INTERNAL,
|
|
"read transaction was cancelled");
|
|
return;
|
|
}
|
|
it->second = true; // mark the read lock as acquired
|
|
}
|
|
|
|
double now = TRI_microtime();
|
|
double startTime = now;
|
|
double endTime = startTime + ttl;
|
|
|
|
{
|
|
CONDITION_LOCKER(locker, _condVar);
|
|
while (now < endTime) {
|
|
_condVar.wait(100000);
|
|
auto it = _holdReadLockJobs.find(id);
|
|
if (it == _holdReadLockJobs.end()) {
|
|
break;
|
|
}
|
|
now = TRI_microtime();
|
|
}
|
|
auto it = _holdReadLockJobs.find(id);
|
|
if (it != _holdReadLockJobs.end()) {
|
|
_holdReadLockJobs.erase(it);
|
|
}
|
|
}
|
|
|
|
VPackBuilder b;
|
|
{
|
|
VPackObjectBuilder bb(&b);
|
|
b.add("error", VPackValue(false));
|
|
}
|
|
|
|
generateResult(rest::ResponseCode::OK, b.slice());
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief check the holding of a read lock on a collection
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
void RestReplicationHandler::handleCommandCheckHoldReadLockCollection() {
|
|
bool success = false;
|
|
std::shared_ptr<VPackBuilder> parsedBody =
|
|
parseVelocyPackBody(&VPackOptions::Defaults, success);
|
|
if (!success) {
|
|
// error already created
|
|
return;
|
|
}
|
|
VPackSlice const body = parsedBody->slice();
|
|
if (!body.isObject()) {
|
|
generateError(rest::ResponseCode::BAD, TRI_ERROR_HTTP_BAD_PARAMETER,
|
|
"body needs to be an object with attribute 'id'");
|
|
return;
|
|
}
|
|
VPackSlice const idSlice = body.get("id");
|
|
if (!idSlice.isString()) {
|
|
generateError(rest::ResponseCode::BAD, TRI_ERROR_HTTP_BAD_PARAMETER,
|
|
"'id' needs to be a string");
|
|
return;
|
|
}
|
|
std::string id = idSlice.copyString();
|
|
|
|
bool lockHeld = false;
|
|
|
|
{
|
|
CONDITION_LOCKER(locker, _condVar);
|
|
auto it = _holdReadLockJobs.find(id);
|
|
if (it == _holdReadLockJobs.end()) {
|
|
generateError(rest::ResponseCode::NOT_FOUND, TRI_ERROR_HTTP_NOT_FOUND,
|
|
"no hold read lock job found for 'id'");
|
|
return;
|
|
}
|
|
if (it->second) {
|
|
lockHeld = true;
|
|
}
|
|
|
|
}
|
|
|
|
VPackBuilder b;
|
|
{
|
|
VPackObjectBuilder bb(&b);
|
|
b.add("error", VPackValue(false));
|
|
b.add("lockHeld", VPackValue(lockHeld));
|
|
}
|
|
|
|
generateResult(rest::ResponseCode::OK, b.slice());
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief cancel the holding of a read lock on a collection
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
void RestReplicationHandler::handleCommandCancelHoldReadLockCollection() {
|
|
bool success = false;
|
|
std::shared_ptr<VPackBuilder> parsedBody =
|
|
parseVelocyPackBody(&VPackOptions::Defaults, success);
|
|
if (!success) {
|
|
// error already created
|
|
return;
|
|
}
|
|
VPackSlice const body = parsedBody->slice();
|
|
if (!body.isObject()) {
|
|
generateError(rest::ResponseCode::BAD, TRI_ERROR_HTTP_BAD_PARAMETER,
|
|
"body needs to be an object with attribute 'id'");
|
|
return;
|
|
}
|
|
VPackSlice const idSlice = body.get("id");
|
|
if (!idSlice.isString()) {
|
|
generateError(rest::ResponseCode::BAD, TRI_ERROR_HTTP_BAD_PARAMETER,
|
|
"'id' needs to be a string");
|
|
return;
|
|
}
|
|
std::string id = idSlice.copyString();
|
|
|
|
bool lockHeld = false;
|
|
{
|
|
CONDITION_LOCKER(locker, _condVar);
|
|
auto it = _holdReadLockJobs.find(id);
|
|
if (it != _holdReadLockJobs.end()) {
|
|
// Note that this approach works if the lock has been acquired
|
|
// as well as if we still wait for the read lock, in which case
|
|
// it will eventually be acquired but immediately released:
|
|
if (it->second) {
|
|
lockHeld = true;
|
|
}
|
|
_holdReadLockJobs.erase(it);
|
|
_condVar.broadcast();
|
|
}
|
|
}
|
|
|
|
VPackBuilder b;
|
|
{
|
|
VPackObjectBuilder bb(&b);
|
|
b.add("error", VPackValue(false));
|
|
b.add("lockHeld", VPackValue(lockHeld));
|
|
}
|
|
|
|
generateResult(rest::ResponseCode::OK, b.slice());
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief get ID for a read lock job
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
void RestReplicationHandler::handleCommandGetIdForReadLockCollection() {
|
|
std::string id = std::to_string(TRI_NewTickServer());
|
|
|
|
VPackBuilder b;
|
|
{
|
|
VPackObjectBuilder bb(&b);
|
|
b.add("id", VPackValue(id));
|
|
}
|
|
|
|
generateResult(rest::ResponseCode::OK, b.slice());
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
/// @brief condition locker to wake up holdReadLockCollection jobs
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
|
|
arangodb::basics::ConditionVariable RestReplicationHandler::_condVar;
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
/// @brief global table of flags to cancel holdReadLockCollection jobs, if
|
|
/// the flag is set of the ID of a job, the job is cancelled
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
|
|
std::unordered_map<std::string, bool> RestReplicationHandler::_holdReadLockJobs;
|