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arangodb/arangod/V8Server/v8-replication.cpp

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////////////////////////////////////////////////////////////////////////////////
/// DISCLAIMER
///
/// Copyright 2014-2016 ArangoDB GmbH, Cologne, Germany
/// Copyright 2004-2014 triAGENS GmbH, Cologne, Germany
///
/// Licensed under the Apache License, Version 2.0 (the "License");
/// you may not use this file except in compliance with the License.
/// You may obtain a copy of the License at
///
/// http://www.apache.org/licenses/LICENSE-2.0
///
/// Unless required by applicable law or agreed to in writing, software
/// distributed under the License is distributed on an "AS IS" BASIS,
/// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
/// See the License for the specific language governing permissions and
/// limitations under the License.
///
/// Copyright holder is ArangoDB GmbH, Cologne, Germany
///
/// @author Dr. Frank Celler
////////////////////////////////////////////////////////////////////////////////
#include "v8-replication.h"
#include "Basics/ReadLocker.h"
#include "Cluster/ClusterComm.h"
#include "Cluster/ClusterFeature.h"
#include "Replication/InitialSyncer.h"
#include "Rest/Version.h"
#include "RestServer/ServerIdFeature.h"
#include "V8/v8-conv.h"
#include "V8/v8-globals.h"
#include "V8/v8-utils.h"
#include "V8/v8-vpack.h"
#include "V8Server/v8-vocbaseprivate.h"
#include "VocBase/replication-dump.h"
#include "MMFiles/MMFilesLogfileManager.h"
#include <velocypack/Builder.h>
#include <velocypack/Parser.h>
#include <velocypack/Slice.h>
#include <velocypack/velocypack-aliases.h>
using namespace arangodb;
using namespace arangodb::basics;
using namespace arangodb::rest;
////////////////////////////////////////////////////////////////////////////////
/// @brief get the state of the replication logger
////////////////////////////////////////////////////////////////////////////////
static void JS_StateLoggerReplication(
v8::FunctionCallbackInfo<v8::Value> const& args) {
TRI_V8_TRY_CATCH_BEGIN(isolate);
v8::HandleScope scope(isolate);
MMFilesLogfileManagerState const s =
MMFilesLogfileManager::instance()->state();
v8::Handle<v8::Object> result = v8::Object::New(isolate);
v8::Handle<v8::Object> state = v8::Object::New(isolate);
state->Set(TRI_V8_ASCII_STRING("running"), v8::True(isolate));
state->Set(TRI_V8_ASCII_STRING("lastLogTick"), V8TickId(isolate, s.lastCommittedTick));
state->Set(TRI_V8_ASCII_STRING("lastUncommittedLogTick"), V8TickId(isolate, s.lastAssignedTick));
state->Set(TRI_V8_ASCII_STRING("totalEvents"),
v8::Number::New(isolate, static_cast<double>(s.numEvents + s.numEventsSync)));
state->Set(TRI_V8_ASCII_STRING("time"), TRI_V8_STD_STRING(s.timeString));
result->Set(TRI_V8_ASCII_STRING("state"), state);
v8::Handle<v8::Object> server = v8::Object::New(isolate);
server->Set(TRI_V8_ASCII_STRING("version"),
TRI_V8_ASCII_STRING(ARANGODB_VERSION));
server->Set(TRI_V8_ASCII_STRING("serverId"),
TRI_V8_STD_STRING(StringUtils::itoa(ServerIdFeature::getId())));
result->Set(TRI_V8_ASCII_STRING("server"), server);
v8::Handle<v8::Object> clients = v8::Object::New(isolate);
result->Set(TRI_V8_ASCII_STRING("clients"), clients);
TRI_V8_RETURN(result);
TRI_V8_TRY_CATCH_END
}
////////////////////////////////////////////////////////////////////////////////
/// @brief get the tick ranges that can be provided by the replication logger
////////////////////////////////////////////////////////////////////////////////
static void JS_TickRangesLoggerReplication(
v8::FunctionCallbackInfo<v8::Value> const& args) {
TRI_V8_TRY_CATCH_BEGIN(isolate);
v8::HandleScope scope(isolate);
auto const& ranges = MMFilesLogfileManager::instance()->ranges();
v8::Handle<v8::Array> result = v8::Array::New(isolate, (int)ranges.size());
uint32_t i = 0;
for (auto& it : ranges) {
v8::Handle<v8::Object> df = v8::Object::New(isolate);
df->ForceSet(TRI_V8_ASCII_STRING("datafile"),
TRI_V8_STD_STRING(it.filename));
df->ForceSet(TRI_V8_ASCII_STRING("state"), TRI_V8_STD_STRING(it.state));
df->ForceSet(TRI_V8_ASCII_STRING("tickMin"), V8TickId(isolate, it.tickMin));
df->ForceSet(TRI_V8_ASCII_STRING("tickMax"), V8TickId(isolate, it.tickMax));
result->Set(i++, df);
}
TRI_V8_RETURN(result);
TRI_V8_TRY_CATCH_END
}
////////////////////////////////////////////////////////////////////////////////
/// @brief get the first tick that can be provided by the replication logger
////////////////////////////////////////////////////////////////////////////////
static void JS_FirstTickLoggerReplication(
v8::FunctionCallbackInfo<v8::Value> const& args) {
TRI_V8_TRY_CATCH_BEGIN(isolate);
v8::HandleScope scope(isolate);
auto const& ranges = MMFilesLogfileManager::instance()->ranges();
TRI_voc_tick_t tick = UINT64_MAX;
for (auto& it : ranges) {
if (it.tickMin == 0) {
continue;
}
if (it.tickMin < tick) {
tick = it.tickMin;
}
}
if (tick == UINT64_MAX) {
TRI_V8_RETURN(v8::Null(isolate));
}
TRI_V8_RETURN(V8TickId(isolate, tick));
TRI_V8_TRY_CATCH_END
}
////////////////////////////////////////////////////////////////////////////////
/// @brief get the last WAL entries
////////////////////////////////////////////////////////////////////////////////
static void JS_LastLoggerReplication(
v8::FunctionCallbackInfo<v8::Value> const& args) {
TRI_V8_TRY_CATCH_BEGIN(isolate);
v8::HandleScope scope(isolate);
TRI_vocbase_t* vocbase = GetContextVocBase(isolate);
if (vocbase == nullptr) {
TRI_V8_THROW_EXCEPTION(TRI_ERROR_ARANGO_DATABASE_NOT_FOUND);
}
if (args.Length() != 2) {
TRI_V8_THROW_EXCEPTION_USAGE(
"REPLICATION_LOGGER_LAST(<fromTick>, <toTick>)");
}
auto transactionContext = std::make_shared<transaction::StandaloneContext>(vocbase);
TRI_replication_dump_t dump(transactionContext, 0, true, 0);
TRI_voc_tick_t tickStart = TRI_ObjectToUInt64(args[0], true);
TRI_voc_tick_t tickEnd = TRI_ObjectToUInt64(args[1], true);
int res = TRI_DumpLogReplication(&dump, std::unordered_set<TRI_voc_tid_t>(),
0, tickStart, tickEnd, true);
if (res != TRI_ERROR_NO_ERROR) {
TRI_V8_THROW_EXCEPTION(res);
}
VPackParser parser;
parser.parse(dump._buffer->_buffer);
std::shared_ptr<VPackBuilder> builder = parser.steal();
v8::Handle<v8::Value> result = TRI_VPackToV8(isolate, builder->slice());
TRI_V8_RETURN(result);
TRI_V8_TRY_CATCH_END
}
void addReplicationAuthentication(v8::Isolate* isolate,
v8::Handle<v8::Object> object,
TRI_replication_applier_configuration_t &config) {
bool hasUsernamePassword = false;
if (object->Has(TRI_V8_ASCII_STRING("username"))) {
if (object->Get(TRI_V8_ASCII_STRING("username"))->IsString()) {
hasUsernamePassword = true;
config._username =
TRI_ObjectToString(object->Get(TRI_V8_ASCII_STRING("username")));
}
}
if (object->Has(TRI_V8_ASCII_STRING("password"))) {
if (object->Get(TRI_V8_ASCII_STRING("password"))->IsString()) {
hasUsernamePassword = true;
config._password =
TRI_ObjectToString(object->Get(TRI_V8_ASCII_STRING("password")));
}
}
if (!hasUsernamePassword) {
auto cluster = application_features::ApplicationServer::getFeature<ClusterFeature>("Cluster");
if (cluster->isEnabled()) {
auto cc = ClusterComm::instance();
if (cc != nullptr) {
// nullptr happens only during controlled shutdown
config._jwt = ClusterComm::instance()->jwt();
}
}
}
}
////////////////////////////////////////////////////////////////////////////////
/// @brief sync data from a remote master
////////////////////////////////////////////////////////////////////////////////
static void JS_SynchronizeReplication(
v8::FunctionCallbackInfo<v8::Value> const& args) {
TRI_V8_TRY_CATCH_BEGIN(isolate);
v8::HandleScope scope(isolate);
if (args.Length() != 1 || !args[0]->IsObject()) {
TRI_V8_THROW_EXCEPTION_USAGE("REPLICATION_SYNCHRONIZE(<config>)");
}
TRI_vocbase_t* vocbase = GetContextVocBase(isolate);
if (vocbase == nullptr) {
TRI_V8_THROW_EXCEPTION(TRI_ERROR_ARANGO_DATABASE_NOT_FOUND);
}
// treat the argument as an object from now on
v8::Handle<v8::Object> object = v8::Handle<v8::Object>::Cast(args[0]);
std::string endpoint;
if (object->Has(TRI_V8_ASCII_STRING("endpoint"))) {
endpoint = TRI_ObjectToString(object->Get(TRI_V8_ASCII_STRING("endpoint")));
}
std::string database;
if (object->Has(TRI_V8_ASCII_STRING("database"))) {
database = TRI_ObjectToString(object->Get(TRI_V8_ASCII_STRING("database")));
} else {
database = vocbase->name();
}
std::unordered_map<std::string, bool> restrictCollections;
if (object->Has(TRI_V8_ASCII_STRING("restrictCollections")) &&
object->Get(TRI_V8_ASCII_STRING("restrictCollections"))->IsArray()) {
v8::Handle<v8::Array> a = v8::Handle<v8::Array>::Cast(
object->Get(TRI_V8_ASCII_STRING("restrictCollections")));
uint32_t const n = a->Length();
for (uint32_t i = 0; i < n; ++i) {
v8::Handle<v8::Value> cname = a->Get(i);
if (cname->IsString()) {
restrictCollections.emplace(
std::make_pair(TRI_ObjectToString(cname), true));
}
}
}
std::string restrictType;
if (object->Has(TRI_V8_ASCII_STRING("restrictType"))) {
restrictType =
TRI_ObjectToString(object->Get(TRI_V8_ASCII_STRING("restrictType")));
}
bool verbose = true;
if (object->Has(TRI_V8_ASCII_STRING("verbose"))) {
verbose = TRI_ObjectToBoolean(object->Get(TRI_V8_ASCII_STRING("verbose")));
}
if (endpoint.empty()) {
TRI_V8_THROW_EXCEPTION_PARAMETER("<endpoint> must be a valid endpoint");
}
if ((restrictType.empty() && !restrictCollections.empty()) ||
(!restrictType.empty() && restrictCollections.empty()) ||
(!restrictType.empty() && restrictType != "include" &&
restrictType != "exclude")) {
TRI_V8_THROW_EXCEPTION_PARAMETER(
"invalid value for <restrictCollections> or <restrictType>");
}
TRI_replication_applier_configuration_t config;
config._endpoint = endpoint;
config._database = database;
addReplicationAuthentication(isolate, object, config);
if (object->Has(TRI_V8_ASCII_STRING("chunkSize"))) {
if (object->Get(TRI_V8_ASCII_STRING("chunkSize"))->IsNumber()) {
config._chunkSize = TRI_ObjectToUInt64(
object->Get(TRI_V8_ASCII_STRING("chunkSize")), true);
}
}
if (object->Has(TRI_V8_ASCII_STRING("includeSystem"))) {
if (object->Get(TRI_V8_ASCII_STRING("includeSystem"))->IsBoolean()) {
config._includeSystem = TRI_ObjectToBoolean(
object->Get(TRI_V8_ASCII_STRING("includeSystem")));
}
}
if (object->Has(TRI_V8_ASCII_STRING("requireFromPresent"))) {
if (object->Get(TRI_V8_ASCII_STRING("requireFromPresent"))->IsBoolean()) {
config._requireFromPresent = TRI_ObjectToBoolean(
object->Get(TRI_V8_ASCII_STRING("requireFromPresent")));
}
}
bool incremental = false;
if (object->Has(TRI_V8_ASCII_STRING("incremental"))) {
if (object->Get(TRI_V8_ASCII_STRING("incremental"))->IsBoolean()) {
incremental =
TRI_ObjectToBoolean(object->Get(TRI_V8_ASCII_STRING("incremental")));
}
}
bool keepBarrier = false;
if (object->Has(TRI_V8_ASCII_STRING("keepBarrier"))) {
keepBarrier =
TRI_ObjectToBoolean(object->Get(TRI_V8_ASCII_STRING("keepBarrier")));
}
if (object->Has(TRI_V8_ASCII_STRING("useCollectionId"))) {
config._useCollectionId =
TRI_ObjectToBoolean(object->Get(TRI_V8_ASCII_STRING("useCollectionId")));
}
std::string errorMsg = "";
InitialSyncer syncer(vocbase, &config, restrictCollections, restrictType,
verbose);
int res = TRI_ERROR_NO_ERROR;
v8::Handle<v8::Object> result = v8::Object::New(isolate);
try {
res = syncer.run(errorMsg, incremental);
if (keepBarrier) {
result->Set(TRI_V8_ASCII_STRING("barrierId"),
V8TickId(isolate, syncer.stealBarrier()));
}
result->Set(TRI_V8_ASCII_STRING("lastLogTick"),
V8TickId(isolate, syncer.getLastLogTick()));
std::map<TRI_voc_cid_t, std::string>::const_iterator it;
std::map<TRI_voc_cid_t, std::string> const& c =
syncer.getProcessedCollections();
uint32_t j = 0;
v8::Handle<v8::Array> collections = v8::Array::New(isolate);
for (it = c.begin(); it != c.end(); ++it) {
std::string const cidString = StringUtils::itoa((*it).first);
v8::Handle<v8::Object> ci = v8::Object::New(isolate);
ci->Set(TRI_V8_ASCII_STRING("id"), TRI_V8_STD_STRING(cidString));
ci->Set(TRI_V8_ASCII_STRING("name"), TRI_V8_STD_STRING((*it).second));
collections->Set(j++, ci);
}
result->Set(TRI_V8_ASCII_STRING("collections"), collections);
} catch (arangodb::basics::Exception const& ex) {
res = ex.code();
if (errorMsg.empty()) {
errorMsg = std::string("caught exception: ") + ex.what();
}
} catch (std::exception const& ex) {
res = TRI_ERROR_INTERNAL;
if (errorMsg.empty()) {
errorMsg = std::string("caught exception: ") + ex.what();
}
} catch (...) {
res = TRI_ERROR_INTERNAL;
if (errorMsg.empty()) {
errorMsg = "caught unknown exception";
}
}
if (res != TRI_ERROR_NO_ERROR) {
if (errorMsg.empty()) {
TRI_V8_THROW_EXCEPTION_MESSAGE(res, "cannot sync from remote endpoint. last progress message was '" + syncer.progress() + "'");
} else {
TRI_V8_THROW_EXCEPTION_MESSAGE(
res, "cannot sync from remote endpoint: " + errorMsg + ". last progress message was '" + syncer.progress() + "'");
}
}
// Now check forSynchronousReplication flag and tell ClusterInfo
// about a new follower.
TRI_V8_RETURN(result);
TRI_V8_TRY_CATCH_END
}
////////////////////////////////////////////////////////////////////////////////
/// @brief return the server's id
////////////////////////////////////////////////////////////////////////////////
static void JS_ServerIdReplication(
v8::FunctionCallbackInfo<v8::Value> const& args) {
TRI_V8_TRY_CATCH_BEGIN(isolate);
v8::HandleScope scope(isolate);
std::string const serverId = StringUtils::itoa(ServerIdFeature::getId());
TRI_V8_RETURN_STD_STRING(serverId);
TRI_V8_TRY_CATCH_END
}
////////////////////////////////////////////////////////////////////////////////
/// @brief configure the replication applier manually
////////////////////////////////////////////////////////////////////////////////
static void JS_ConfigureApplierReplication(
v8::FunctionCallbackInfo<v8::Value> const& args) {
TRI_V8_TRY_CATCH_BEGIN(isolate);
v8::HandleScope scope(isolate);
TRI_vocbase_t* vocbase = GetContextVocBase(isolate);
if (vocbase == nullptr) {
TRI_V8_THROW_EXCEPTION(TRI_ERROR_ARANGO_DATABASE_NOT_FOUND);
}
if (vocbase->replicationApplier() == nullptr) {
TRI_V8_THROW_EXCEPTION_MESSAGE(TRI_ERROR_INTERNAL, "unable to find replicationApplier");
}
if (args.Length() == 0) {
// no argument: return the current configuration
TRI_replication_applier_configuration_t config;
{
READ_LOCKER(readLocker, vocbase->replicationApplier()->_statusLock);
config.update(&vocbase->replicationApplier()->_configuration);
}
std::shared_ptr<VPackBuilder> builder = config.toVelocyPack(true);
v8::Handle<v8::Value> result = TRI_VPackToV8(isolate, builder->slice());
TRI_V8_RETURN(result);
}
else {
// set the configuration
if (args.Length() != 1 || !args[0]->IsObject()) {
TRI_V8_THROW_EXCEPTION_USAGE(
"REPLICATION_APPLIER_CONFIGURE(<configuration>)");
}
TRI_replication_applier_configuration_t config;
// fill with previous configuration
{
READ_LOCKER(readLocker, vocbase->replicationApplier()->_statusLock);
config.update(&vocbase->replicationApplier()->_configuration);
}
// treat the argument as an object from now on
v8::Handle<v8::Object> object = v8::Handle<v8::Object>::Cast(args[0]);
if (object->Has(TRI_V8_ASCII_STRING("endpoint"))) {
if (object->Get(TRI_V8_ASCII_STRING("endpoint"))->IsString()) {
config._endpoint =
TRI_ObjectToString(object->Get(TRI_V8_ASCII_STRING("endpoint")));
}
}
if (object->Has(TRI_V8_ASCII_STRING("database"))) {
if (object->Get(TRI_V8_ASCII_STRING("database"))->IsString()) {
config._database =
TRI_ObjectToString(object->Get(TRI_V8_ASCII_STRING("database")));
}
} else {
if (config._database.empty()) {
// no database set, use current
config._database = vocbase->name();
}
}
addReplicationAuthentication(isolate, object, config);
if (object->Has(TRI_V8_ASCII_STRING("requestTimeout"))) {
if (object->Get(TRI_V8_ASCII_STRING("requestTimeout"))->IsNumber()) {
config._requestTimeout = TRI_ObjectToDouble(
object->Get(TRI_V8_ASCII_STRING("requestTimeout")));
}
}
if (object->Has(TRI_V8_ASCII_STRING("connectTimeout"))) {
if (object->Get(TRI_V8_ASCII_STRING("connectTimeout"))->IsNumber()) {
config._connectTimeout = TRI_ObjectToDouble(
object->Get(TRI_V8_ASCII_STRING("connectTimeout")));
}
}
if (object->Has(TRI_V8_ASCII_STRING("ignoreErrors"))) {
if (object->Get(TRI_V8_ASCII_STRING("ignoreErrors"))->IsNumber()) {
config._ignoreErrors = TRI_ObjectToUInt64(
object->Get(TRI_V8_ASCII_STRING("ignoreErrors")), false);
}
}
if (object->Has(TRI_V8_ASCII_STRING("maxConnectRetries"))) {
if (object->Get(TRI_V8_ASCII_STRING("maxConnectRetries"))->IsNumber()) {
config._maxConnectRetries = TRI_ObjectToUInt64(
object->Get(TRI_V8_ASCII_STRING("maxConnectRetries")), false);
}
}
if (object->Has(TRI_V8_ASCII_STRING("sslProtocol"))) {
if (object->Get(TRI_V8_ASCII_STRING("sslProtocol"))->IsNumber()) {
config._sslProtocol = (uint32_t)TRI_ObjectToUInt64(
object->Get(TRI_V8_ASCII_STRING("sslProtocol")), false);
}
}
if (object->Has(TRI_V8_ASCII_STRING("chunkSize"))) {
if (object->Get(TRI_V8_ASCII_STRING("chunkSize"))->IsNumber()) {
config._chunkSize = TRI_ObjectToUInt64(
object->Get(TRI_V8_ASCII_STRING("chunkSize")), true);
}
}
if (object->Has(TRI_V8_ASCII_STRING("autoStart"))) {
if (object->Get(TRI_V8_ASCII_STRING("autoStart"))->IsBoolean()) {
config._autoStart =
TRI_ObjectToBoolean(object->Get(TRI_V8_ASCII_STRING("autoStart")));
}
}
if (object->Has(TRI_V8_ASCII_STRING("adaptivePolling"))) {
if (object->Get(TRI_V8_ASCII_STRING("adaptivePolling"))->IsBoolean()) {
config._adaptivePolling = TRI_ObjectToBoolean(
object->Get(TRI_V8_ASCII_STRING("adaptivePolling")));
}
}
if (object->Has(TRI_V8_ASCII_STRING("autoResync"))) {
if (object->Get(TRI_V8_ASCII_STRING("autoResync"))->IsBoolean()) {
config._autoResync =
TRI_ObjectToBoolean(object->Get(TRI_V8_ASCII_STRING("autoResync")));
}
}
if (object->Has(TRI_V8_ASCII_STRING("includeSystem"))) {
if (object->Get(TRI_V8_ASCII_STRING("includeSystem"))->IsBoolean()) {
config._includeSystem = TRI_ObjectToBoolean(
object->Get(TRI_V8_ASCII_STRING("includeSystem")));
}
}
if (object->Has(TRI_V8_ASCII_STRING("requireFromPresent"))) {
if (object->Get(TRI_V8_ASCII_STRING("requireFromPresent"))->IsBoolean()) {
config._requireFromPresent = TRI_ObjectToBoolean(
object->Get(TRI_V8_ASCII_STRING("requireFromPresent")));
}
}
if (object->Has(TRI_V8_ASCII_STRING("incremental"))) {
if (object->Get(TRI_V8_ASCII_STRING("incremental"))->IsBoolean()) {
config._incremental = TRI_ObjectToBoolean(
object->Get(TRI_V8_ASCII_STRING("incremental")));
}
}
if (object->Has(TRI_V8_ASCII_STRING("verbose"))) {
if (object->Get(TRI_V8_ASCII_STRING("verbose"))->IsBoolean()) {
config._verbose =
TRI_ObjectToBoolean(object->Get(TRI_V8_ASCII_STRING("verbose")));
}
}
if (object->Has(TRI_V8_ASCII_STRING("restrictCollections")) &&
object->Get(TRI_V8_ASCII_STRING("restrictCollections"))->IsArray()) {
config._restrictCollections.clear();
v8::Handle<v8::Array> a = v8::Handle<v8::Array>::Cast(
object->Get(TRI_V8_ASCII_STRING("restrictCollections")));
uint32_t const n = a->Length();
for (uint32_t i = 0; i < n; ++i) {
v8::Handle<v8::Value> cname = a->Get(i);
if (cname->IsString()) {
config._restrictCollections.insert(
std::pair<std::string, bool>(TRI_ObjectToString(cname), true));
}
}
}
if (object->Has(TRI_V8_ASCII_STRING("restrictType"))) {
config._restrictType =
TRI_ObjectToString(object->Get(TRI_V8_ASCII_STRING("restrictType")));
}
if ((config._restrictType.empty() &&
!config._restrictCollections.empty()) ||
(!config._restrictType.empty() &&
config._restrictCollections.empty()) ||
(!config._restrictType.empty() && config._restrictType != "include" &&
config._restrictType != "exclude")) {
TRI_V8_THROW_EXCEPTION_PARAMETER(
"invalid value for <restrictCollections> or <restrictType>");
}
if (object->Has(TRI_V8_ASCII_STRING("connectionRetryWaitTime"))) {
if (object->Get(TRI_V8_ASCII_STRING("connectionRetryWaitTime"))
->IsNumber()) {
double value = TRI_ObjectToDouble(
object->Get(TRI_V8_ASCII_STRING("connectionRetryWaitTime")));
if (value > 0.0) {
config._connectionRetryWaitTime =
static_cast<uint64_t>(value * 1000.0 * 1000.0);
}
}
}
if (object->Has(TRI_V8_ASCII_STRING("initialSyncMaxWaitTime"))) {
if (object->Get(TRI_V8_ASCII_STRING("initialSyncMaxWaitTime"))
->IsNumber()) {
double value = TRI_ObjectToDouble(
object->Get(TRI_V8_ASCII_STRING("initialSyncMaxWaitTime")));
if (value > 0.0) {
config._initialSyncMaxWaitTime =
static_cast<uint64_t>(value * 1000.0 * 1000.0);
}
}
}
if (object->Has(TRI_V8_ASCII_STRING("idleMinWaitTime"))) {
if (object->Get(TRI_V8_ASCII_STRING("idleMinWaitTime"))->IsNumber()) {
double value = TRI_ObjectToDouble(
object->Get(TRI_V8_ASCII_STRING("idleMinWaitTime")));
if (value > 0.0) {
config._idleMinWaitTime =
static_cast<uint64_t>(value * 1000.0 * 1000.0);
}
}
}
if (object->Has(TRI_V8_ASCII_STRING("idleMaxWaitTime"))) {
if (object->Get(TRI_V8_ASCII_STRING("idleMaxWaitTime"))->IsNumber()) {
double value = TRI_ObjectToDouble(
object->Get(TRI_V8_ASCII_STRING("idleMaxWaitTime")));
if (value > 0.0) {
config._idleMaxWaitTime =
static_cast<uint64_t>(value * 1000.0 * 1000.0);
}
}
}
if (object->Has(TRI_V8_ASCII_STRING("autoResyncRetries"))) {
if (object->Get(TRI_V8_ASCII_STRING("autoResyncRetries"))->IsNumber()) {
double value = TRI_ObjectToDouble(
object->Get(TRI_V8_ASCII_STRING("autoResyncRetries")));
config._autoResyncRetries = static_cast<uint64_t>(value);
}
}
int res =
TRI_ConfigureReplicationApplier(vocbase->replicationApplier(), &config);
if (res != TRI_ERROR_NO_ERROR) {
TRI_V8_THROW_EXCEPTION(res);
}
std::shared_ptr<VPackBuilder> builder = config.toVelocyPack(true);
v8::Handle<v8::Value> result = TRI_VPackToV8(isolate, builder->slice());
TRI_V8_RETURN(result);
}
TRI_V8_TRY_CATCH_END
}
////////////////////////////////////////////////////////////////////////////////
/// @brief start the replication applier manually
////////////////////////////////////////////////////////////////////////////////
static void JS_StartApplierReplication(
v8::FunctionCallbackInfo<v8::Value> const& args) {
TRI_V8_TRY_CATCH_BEGIN(isolate);
v8::HandleScope scope(isolate);
TRI_vocbase_t* vocbase = GetContextVocBase(isolate);
if (vocbase == nullptr) {
TRI_V8_THROW_EXCEPTION(TRI_ERROR_ARANGO_DATABASE_NOT_FOUND);
}
if (vocbase->replicationApplier() == nullptr) {
TRI_V8_THROW_EXCEPTION_MESSAGE(TRI_ERROR_INTERNAL, "unable to find replicationApplier");
}
if (args.Length() > 2) {
TRI_V8_THROW_EXCEPTION_USAGE("REPLICATION_APPLIER_START(<from>)");
}
TRI_voc_tick_t initialTick = 0;
bool useTick = false;
if (args.Length() >= 1) {
initialTick = TRI_ObjectToUInt64(args[0], true);
useTick = true;
}
TRI_voc_tick_t barrierId = 0;
if (args.Length() >= 2) {
barrierId = TRI_ObjectToUInt64(args[1], true);
}
int res =
vocbase->replicationApplier()->start(initialTick, useTick, barrierId);
if (res != TRI_ERROR_NO_ERROR) {
TRI_V8_THROW_EXCEPTION_MESSAGE(res, "cannot start replication applier");
}
TRI_V8_RETURN_TRUE();
TRI_V8_TRY_CATCH_END
}
////////////////////////////////////////////////////////////////////////////////
/// @brief shuts down the replication applier manually
////////////////////////////////////////////////////////////////////////////////
static void JS_ShutdownApplierReplication(
v8::FunctionCallbackInfo<v8::Value> const& args) {
TRI_V8_TRY_CATCH_BEGIN(isolate);
v8::HandleScope scope(isolate);
if (args.Length() != 0) {
TRI_V8_THROW_EXCEPTION_USAGE("REPLICATION_APPLIER_SHUTDOWN()");
}
TRI_vocbase_t* vocbase = GetContextVocBase(isolate);
if (vocbase == nullptr) {
TRI_V8_THROW_EXCEPTION(TRI_ERROR_ARANGO_DATABASE_NOT_FOUND);
}
if (vocbase->replicationApplier() == nullptr) {
TRI_V8_THROW_EXCEPTION_MESSAGE(TRI_ERROR_INTERNAL, "unable to find replicationApplier");
}
int res = vocbase->replicationApplier()->shutdown();
if (res != TRI_ERROR_NO_ERROR) {
TRI_V8_THROW_EXCEPTION_MESSAGE(res, "cannot shut down replication applier");
}
TRI_V8_RETURN_TRUE();
TRI_V8_TRY_CATCH_END
}
////////////////////////////////////////////////////////////////////////////////
/// @brief get the state of the replication applier
////////////////////////////////////////////////////////////////////////////////
static void JS_StateApplierReplication(
v8::FunctionCallbackInfo<v8::Value> const& args) {
TRI_V8_TRY_CATCH_BEGIN(isolate);
v8::HandleScope scope(isolate);
if (args.Length() != 0) {
TRI_V8_THROW_EXCEPTION_USAGE("REPLICATION_APPLIER_STATE()");
}
TRI_vocbase_t* vocbase = GetContextVocBase(isolate);
if (vocbase == nullptr) {
TRI_V8_THROW_EXCEPTION(TRI_ERROR_ARANGO_DATABASE_NOT_FOUND);
}
if (vocbase->replicationApplier() == nullptr) {
TRI_V8_THROW_EXCEPTION_MESSAGE(TRI_ERROR_INTERNAL, "unable to find replicationApplier");
}
std::shared_ptr<VPackBuilder> builder = vocbase->replicationApplier()->toVelocyPack();
v8::Handle<v8::Value> result = TRI_VPackToV8(isolate, builder->slice());
TRI_V8_RETURN(result);
TRI_V8_TRY_CATCH_END
}
////////////////////////////////////////////////////////////////////////////////
/// @brief stop the replication applier and "forget" all state
////////////////////////////////////////////////////////////////////////////////
static void JS_ForgetApplierReplication(
v8::FunctionCallbackInfo<v8::Value> const& args) {
TRI_V8_TRY_CATCH_BEGIN(isolate);
v8::HandleScope scope(isolate);
if (args.Length() != 0) {
TRI_V8_THROW_EXCEPTION_USAGE("REPLICATION_APPLIER_FORGET()");
}
TRI_vocbase_t* vocbase = GetContextVocBase(isolate);
if (vocbase == nullptr) {
TRI_V8_THROW_EXCEPTION(TRI_ERROR_ARANGO_DATABASE_NOT_FOUND);
}
if (vocbase->replicationApplier() == nullptr) {
TRI_V8_THROW_EXCEPTION_MESSAGE(TRI_ERROR_INTERNAL, "unable to find replicationApplier");
}
int res = vocbase->replicationApplier()->forget();
if (res != TRI_ERROR_NO_ERROR) {
TRI_V8_THROW_EXCEPTION(res);
}
TRI_V8_RETURN_TRUE();
TRI_V8_TRY_CATCH_END
}
void TRI_InitV8Replication(v8::Isolate* isolate,
v8::Handle<v8::Context> context,
TRI_vocbase_t* vocbase,
size_t threadNumber, TRI_v8_global_t* v8g) {
// replication functions. not intended to be used by end users
TRI_AddGlobalFunctionVocbase(isolate, context,
TRI_V8_ASCII_STRING("REPLICATION_LOGGER_STATE"),
JS_StateLoggerReplication, true);
TRI_AddGlobalFunctionVocbase(isolate, context,
TRI_V8_ASCII_STRING("REPLICATION_LOGGER_LAST"),
JS_LastLoggerReplication, true);
TRI_AddGlobalFunctionVocbase(
isolate, context, TRI_V8_ASCII_STRING("REPLICATION_LOGGER_TICK_RANGES"),
JS_TickRangesLoggerReplication, true);
TRI_AddGlobalFunctionVocbase(
isolate, context, TRI_V8_ASCII_STRING("REPLICATION_LOGGER_FIRST_TICK"),
JS_FirstTickLoggerReplication, true);
TRI_AddGlobalFunctionVocbase(isolate, context,
TRI_V8_ASCII_STRING("REPLICATION_SYNCHRONIZE"),
JS_SynchronizeReplication, true);
TRI_AddGlobalFunctionVocbase(isolate, context,
TRI_V8_ASCII_STRING("REPLICATION_SERVER_ID"),
JS_ServerIdReplication, true);
TRI_AddGlobalFunctionVocbase(
isolate, context, TRI_V8_ASCII_STRING("REPLICATION_APPLIER_CONFIGURE"),
JS_ConfigureApplierReplication, true);
TRI_AddGlobalFunctionVocbase(isolate, context,
TRI_V8_ASCII_STRING("REPLICATION_APPLIER_START"),
JS_StartApplierReplication, true);
TRI_AddGlobalFunctionVocbase(
isolate, context, TRI_V8_ASCII_STRING("REPLICATION_APPLIER_SHUTDOWN"),
JS_ShutdownApplierReplication, true);
TRI_AddGlobalFunctionVocbase(isolate, context,
TRI_V8_ASCII_STRING("REPLICATION_APPLIER_STATE"),
JS_StateApplierReplication, true);
TRI_AddGlobalFunctionVocbase(
isolate, context, TRI_V8_ASCII_STRING("REPLICATION_APPLIER_FORGET"),
JS_ForgetApplierReplication, true);
}
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