mirror of https://gitee.com/bigwinds/arangodb
74 lines
2.5 KiB
C++
74 lines
2.5 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 Christoph Uhde
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////////////////////////////////////////////////////////////////////////////////
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#ifndef ARANGODB_APPLICATION_FEATURES_ROCKSDB_OPTION_FEATURE_H
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#define ARANGODB_APPLICATION_FEATURES_ROCKSDB_OPTION_FEATURE_H 1
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#include "ApplicationFeatures/ApplicationFeature.h"
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#include "Basics/Common.h"
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#include "VocBase/voc-types.h"
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namespace arangodb {
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// This feature is used to configure RocksDB in a central place.
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//
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// The RocksDB-Storage-Engine and the MMFiles-Persistent-Index
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// that are never activated at the same time take options set
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// in this feature
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class RocksDBOptionFeature final : public application_features::ApplicationFeature {
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public:
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explicit RocksDBOptionFeature(application_features::ApplicationServer* server);
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~RocksDBOptionFeature() {}
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void collectOptions(std::shared_ptr<options::ProgramOptions>) override final;
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void validateOptions(std::shared_ptr<options::ProgramOptions>) override final;
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void prepare() override final {};
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void start() override final {}
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void unprepare() override final {}
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uint64_t _writeBufferSize;
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uint64_t _maxWriteBufferNumber;
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uint64_t _delayedWriteRate;
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uint64_t _minWriteBufferNumberToMerge;
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uint64_t _numLevels;
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uint64_t _maxBytesForLevelBase;
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double _maxBytesForLevelMultiplier;
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uint64_t _baseBackgroundCompactions;
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uint64_t _maxBackgroundCompactions;
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uint64_t _maxLogFileSize;
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uint64_t _keepLogFileNum;
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uint64_t _recycleLogFileNum;
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uint64_t _logFileTimeToRoll;
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uint64_t _compactionReadaheadSize;
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bool _verifyChecksumsInCompaction;
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bool _optimizeFiltersForHits;
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bool _useDirectReads;
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bool _useDirectWrites;
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bool _skipCorrupted;
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};
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}
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#endif
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