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c594b0e89d
Summary: Allow GetThreadList() to report operation stage.
Test Plan:
./thread_list_test
./db_bench --benchmarks=fillrandom --num=100000 --threads=40 \
--max_background_compactions=10 --max_background_flushes=3 \
--thread_status_per_interval=1000 --key_size=16 --value_size=1000 \
--num_column_families=10
export ROCKSDB_TESTS=ThreadStatus
./db_test
Sample output
ThreadID ThreadType cfName Operation OP_StartTime ElapsedTime Stage State
140116265861184 Low Pri
140116270055488 Low Pri
140116274249792 High Pri column_family_name_000005 Flush 2015/03/10-14:58:11 0 us FlushJob::WriteLevel0Table
140116400078912 Low Pri column_family_name_000004 Compaction 2015/03/10-14:58:11 0 us CompactionJob::FinishCompactionOutputFile
140116358135872 Low Pri column_family_name_000006 Compaction 2015/03/10-14:58:10 1 us CompactionJob::FinishCompactionOutputFile
140116341358656 Low Pri
140116295221312 High Pri default Flush 2015/03/10-14:58:11 0 us FlushJob::WriteLevel0Table
140116324581440 Low Pri column_family_name_000009 Compaction 2015/03/10-14:58:11 0 us CompactionJob::ProcessKeyValueCompaction
140116278444096 Low Pri
140116299415616 Low Pri column_family_name_000008 Compaction 2015/03/10-14:58:11 0 us CompactionJob::FinishCompactionOutputFile
140116291027008 High Pri column_family_name_000001 Flush 2015/03/10-14:58:11 0 us FlushJob::WriteLevel0Table
140116286832704 Low Pri column_family_name_000002 Compaction 2015/03/10-14:58:11 0 us CompactionJob::FinishCompactionOutputFile
140116282638400 Low Pri
Reviewers: rven, igor, sdong
Reviewed By: sdong
Subscribers: dhruba, leveldb
Differential Revision: https://reviews.facebook.net/D34683
130 lines
4.1 KiB
C++
130 lines
4.1 KiB
C++
// Copyright (c) 2013, Facebook, Inc. All rights reserved.
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// This source code is licensed under the BSD-style license found in the
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// LICENSE file in the root directory of this source tree. An additional grant
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// of patent rights can be found in the PATENTS file in the same directory.
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//
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// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file. See the AUTHORS file for names of contributors.
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#pragma once
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#include <atomic>
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#include <deque>
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#include <limits>
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#include <set>
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#include <utility>
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#include <vector>
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#include <string>
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#include <functional>
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#include "db/dbformat.h"
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#include "db/log_writer.h"
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#include "db/snapshot.h"
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#include "db/column_family.h"
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#include "db/version_edit.h"
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#include "db/memtable_list.h"
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#include "port/port.h"
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#include "rocksdb/db.h"
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#include "rocksdb/env.h"
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#include "rocksdb/memtablerep.h"
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#include "rocksdb/compaction_filter.h"
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#include "rocksdb/transaction_log.h"
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#include "util/autovector.h"
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#include "util/stop_watch.h"
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#include "util/thread_local.h"
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#include "util/scoped_arena_iterator.h"
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#include "db/internal_stats.h"
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#include "db/write_controller.h"
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#include "db/flush_scheduler.h"
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#include "db/write_thread.h"
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#include "db/job_context.h"
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namespace rocksdb {
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class MemTable;
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class TableCache;
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class Version;
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class VersionEdit;
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class VersionSet;
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class Arena;
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class CompactionJob {
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public:
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// TODO(icanadi) make effort to reduce number of parameters here
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// IMPORTANT: mutable_cf_options needs to be alive while CompactionJob is
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// alive
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CompactionJob(int job_id, Compaction* compaction, const DBOptions& db_options,
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const MutableCFOptions& mutable_cf_options,
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const EnvOptions& env_options, VersionSet* versions,
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std::atomic<bool>* shutting_down, LogBuffer* log_buffer,
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Directory* db_directory, Directory* output_directory,
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Statistics* stats, SnapshotList* snapshot_list,
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bool is_snapshot_supported, std::shared_ptr<Cache> table_cache,
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std::function<uint64_t()> yield_callback);
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~CompactionJob();
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// no copy/move
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CompactionJob(CompactionJob&& job) = delete;
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CompactionJob(const CompactionJob& job) = delete;
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CompactionJob& operator=(const CompactionJob& job) = delete;
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// REQUIRED: mutex held
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void Prepare();
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// REQUIRED mutex not held
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Status Run();
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// REQUIRED: mutex held
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// status is the return of Run()
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void Install(Status* status, InstrumentedMutex* db_mutex);
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private:
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void AllocateCompactionOutputFileNumbers();
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// Call compaction filter if is_compaction_v2 is not true. Then iterate
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// through input and compact the kv-pairs
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Status ProcessKeyValueCompaction(int64_t* imm_micros, Iterator* input,
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bool is_compaction_v2);
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// Call compaction_filter_v2->Filter() on kv-pairs in compact
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void CallCompactionFilterV2(CompactionFilterV2* compaction_filter_v2);
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Status FinishCompactionOutputFile(Iterator* input);
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Status InstallCompactionResults(InstrumentedMutex* db_mutex);
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SequenceNumber findEarliestVisibleSnapshot(
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SequenceNumber in, const std::vector<SequenceNumber>& snapshots,
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SequenceNumber* prev_snapshot);
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void RecordCompactionIOStats();
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Status OpenCompactionOutputFile();
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void CleanupCompaction(const Status& status);
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int job_id_;
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// CompactionJob state
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struct CompactionState;
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CompactionState* compact_;
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bool bottommost_level_;
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SequenceNumber earliest_snapshot_;
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SequenceNumber visible_at_tip_;
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SequenceNumber latest_snapshot_;
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InternalStats::CompactionStats compaction_stats_;
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// DBImpl state
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const DBOptions& db_options_;
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const MutableCFOptions& mutable_cf_options_;
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const EnvOptions& env_options_;
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Env* env_;
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VersionSet* versions_;
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std::atomic<bool>* shutting_down_;
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LogBuffer* log_buffer_;
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Directory* db_directory_;
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Directory* output_directory_;
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Statistics* stats_;
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SnapshotList* snapshots_;
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bool is_snapshot_supported_;
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std::shared_ptr<Cache> table_cache_;
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// yield callback
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std::function<uint64_t()> yield_callback_;
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};
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} // namespace rocksdb
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