mirror of https://gitee.com/bigwinds/arangodb
92 lines
3.0 KiB
C++
92 lines
3.0 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 "MMFilesWalRecoveryFeature.h"
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#include "Basics/Exceptions.h"
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#include "Logger/Logger.h"
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#include "MMFiles/MMFilesLogfileManager.h"
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#include "ProgramOptions/ProgramOptions.h"
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#include "ProgramOptions/Section.h"
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#include "RestServer/DatabaseFeature.h"
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using namespace arangodb::application_features;
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using namespace arangodb::basics;
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using namespace arangodb::options;
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namespace arangodb {
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MMFilesWalRecoveryFeature::MMFilesWalRecoveryFeature(application_features::ApplicationServer& server)
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: ApplicationFeature(server, "MMFilesWalRecovery") {
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setOptional(true);
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startsAfter("BasicsPhase");
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startsAfter("Database");
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startsAfter("MMFilesLogfileManager");
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startsAfter("MMFilesPersistentIndex");
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startsAfter("ServerId");
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startsAfter("SystemDatabase");
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onlyEnabledWith("MMFilesEngine");
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onlyEnabledWith("MMFilesLogfileManager");
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}
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/// @brief run the recovery procedure
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/// this is called after the logfiles have been scanned completely and
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/// recovery state has been build. additionally, all databases have been
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/// opened already so we can use collections
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void MMFilesWalRecoveryFeature::start() {
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MMFilesLogfileManager* logfileManager =
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ApplicationServer::getFeature<MMFilesLogfileManager>(
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"MMFilesLogfileManager");
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TRI_ASSERT(!logfileManager->allowWrites());
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int res = logfileManager->runRecovery();
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if (res != TRI_ERROR_NO_ERROR) {
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LOG_TOPIC("c6422", FATAL, arangodb::Logger::ENGINES)
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<< "unable to finish WAL recovery: " << TRI_errno_string(res);
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#ifdef ARANGODB_ENABLE_MAINTAINER_MODE
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FATAL_ERROR_ABORT();
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#endif
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FATAL_ERROR_EXIT();
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}
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if (!logfileManager->open()) {
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// if we got here, the MMFilesLogfileManager has already logged a fatal
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// error and we can simply abort
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FATAL_ERROR_EXIT();
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}
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// notify everyone that recovery is now done
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auto databaseFeature =
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ApplicationServer::getFeature<DatabaseFeature>("Database");
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databaseFeature->recoveryDone();
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LOG_TOPIC("8767f", INFO, arangodb::Logger::ENGINES)
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<< "DB recovery finished successfully";
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}
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} // namespace arangodb
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