mirror of https://gitee.com/bigwinds/arangodb
84 lines
2.9 KiB
C++
84 lines
2.9 KiB
C++
////////////////////////////////////////////////////////////////////////////////
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/// DISCLAIMER
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///
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/// Copyright 2018 ArangoDB 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 Simon Grätzer
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////////////////////////////////////////////////////////////////////////////////
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#include "MMFilesMethods.h"
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#include "Cluster/ClusterComm.h"
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#include "Cluster/ClusterInfo.h"
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#include "ClusterEngine/ClusterEngine.h"
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#include "StorageEngine/EngineSelectorFeature.h"
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#include "VocBase/LogicalCollection.h"
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namespace arangodb {
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namespace mmfiles {
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////////////////////////////////////////////////////////////////////////////////
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/// @brief rotate the active journals for the collection on all DBServers
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////////////////////////////////////////////////////////////////////////////////
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int rotateActiveJournalOnAllDBServers(std::string const& dbname, std::string const& collname) {
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ClusterEngine* ce = static_cast<ClusterEngine*>(EngineSelectorFeature::ENGINE);
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if (!ce->isMMFiles()) {
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return TRI_ERROR_NOT_IMPLEMENTED;
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}
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// Set a few variables needed for our work:
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ClusterInfo* ci = ClusterInfo::instance();
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auto cc = ClusterComm::instance();
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if (cc == nullptr) {
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// nullptr happens only during controlled shutdown
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return TRI_ERROR_SHUTTING_DOWN;
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}
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// First determine the collection ID from the name:
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auto collinfo = ci->getCollectionNT(dbname, collname);
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if (collinfo == nullptr) {
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return TRI_ERROR_ARANGO_DATA_SOURCE_NOT_FOUND;
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}
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std::string const baseUrl =
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"/_db/" + basics::StringUtils::urlEncode(dbname) + "/_api/collection/";
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std::shared_ptr<std::string> body;
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// now we notify all leader and follower shards
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std::shared_ptr<ShardMap> shardList = collinfo->shardIds();
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std::vector<ClusterCommRequest> requests;
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for (auto const& shard : *shardList) {
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for (ServerID const& server : shard.second) {
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std::string uri =
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baseUrl + basics::StringUtils::urlEncode(shard.first) + "/rotate";
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requests.emplace_back("server:" + server, arangodb::rest::RequestType::PUT,
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std::move(uri), body);
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}
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}
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size_t nrGood = cc->performRequests(requests, 600.0, Logger::ENGINES, false);
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if (nrGood < requests.size()) {
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return TRI_ERROR_FAILED;
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}
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return TRI_ERROR_NO_ERROR;
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}
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} // namespace mmfiles
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} // namespace arangodb
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