b0c5ecd6b3
Summary: Make `max-subcompactions` dynamically changeable by passing the `DBOption` to Compaction. Pull Request resolved: https://github.com/facebook/rocksdb/pull/7159 Reviewed By: siying Differential Revision: D22671238 Pulled By: jay-zhuang fbshipit-source-id: 311ca9f6bb606965544d8708616d358cfed5be42
34 lines
1.4 KiB
C++
34 lines
1.4 KiB
C++
// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
|
|
// This source code is licensed under both the GPLv2 (found in the
|
|
// COPYING file in the root directory) and Apache 2.0 License
|
|
// (found in the LICENSE.Apache file in the root directory).
|
|
//
|
|
// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style license that can be
|
|
// found in the LICENSE file. See the AUTHORS file for names of contributors.
|
|
|
|
#pragma once
|
|
|
|
#include "db/compaction/compaction_picker.h"
|
|
|
|
namespace ROCKSDB_NAMESPACE {
|
|
// Picking compactions for leveled compaction. See wiki page
|
|
// https://github.com/facebook/rocksdb/wiki/Leveled-Compaction
|
|
// for description of Leveled compaction.
|
|
class LevelCompactionPicker : public CompactionPicker {
|
|
public:
|
|
LevelCompactionPicker(const ImmutableCFOptions& ioptions,
|
|
const InternalKeyComparator* icmp)
|
|
: CompactionPicker(ioptions, icmp) {}
|
|
virtual Compaction* PickCompaction(
|
|
const std::string& cf_name, const MutableCFOptions& mutable_cf_options,
|
|
const MutableDBOptions& mutable_db_options, VersionStorageInfo* vstorage,
|
|
LogBuffer* log_buffer,
|
|
SequenceNumber earliest_memtable_seqno = kMaxSequenceNumber) override;
|
|
|
|
virtual bool NeedsCompaction(
|
|
const VersionStorageInfo* vstorage) const override;
|
|
};
|
|
|
|
} // namespace ROCKSDB_NAMESPACE
|