mirror of https://gitee.com/bigwinds/arangodb
59 lines
2.4 KiB
C++
59 lines
2.4 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 "ReplicationTimeoutFeature.h"
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#include "StorageEngine/EngineSelectorFeature.h"
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#include "StorageEngine/StorageEngine.h"
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using namespace arangodb;
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using namespace arangodb::options;
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double ReplicationTimeoutFeature::timeoutFactor = 1.0;
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double ReplicationTimeoutFeature::timeoutPer4k = 0.1;
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double ReplicationTimeoutFeature::lowerLimit = 0.5;
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ReplicationTimeoutFeature::ReplicationTimeoutFeature(application_features::ApplicationServer* server)
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: ApplicationFeature(server, "ReplicationTimeout") {
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setOptional(true);
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startsAfter("EngineSelector");
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startsBefore("StorageEngine");
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}
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void ReplicationTimeoutFeature::collectOptions(std::shared_ptr<ProgramOptions> options) {
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options->addSection("cluster", "Configure the cluster");
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options->addOption("--cluster.synchronous-replication-timeout-factor",
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"all synchronous replication timeouts are multiplied by this factor",
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new DoubleParameter(&timeoutFactor));
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options->addHiddenOption("--cluster.synchronous-replication-timeout-per-4k",
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"all synchronous replication timeouts are increased by this amount per 4096 bytes (in seconds)",
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new DoubleParameter(&timeoutPer4k));
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}
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void ReplicationTimeoutFeature::prepare() {
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// set minimum timeout. this depends on the selected storage engine
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TRI_ASSERT(EngineSelectorFeature::ENGINE != nullptr);
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lowerLimit = EngineSelectorFeature::ENGINE->minimumSyncReplicationTimeout();
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}
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