fork of https://github.com/oxigraph/rocksdb and https://github.com/facebook/rocksdb for nextgraph and oxigraph
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802 lines
29 KiB
802 lines
29 KiB
// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
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// This source code is licensed under both the GPLv2 (found in the
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// COPYING file in the root directory) and Apache 2.0 License
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// (found in the LICENSE.Apache file in the root 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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//
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#pragma once
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#include <map>
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#include <memory>
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#include <string>
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#include <vector>
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#include "cache/cache_entry_roles.h"
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#include "db/version_set.h"
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#include "rocksdb/system_clock.h"
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class ColumnFamilyData;
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namespace ROCKSDB_NAMESPACE {
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template <class Stats>
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class CacheEntryStatsCollector;
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class DBImpl;
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class MemTableList;
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// Config for retrieving a property's value.
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struct DBPropertyInfo {
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bool need_out_of_mutex;
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// gcc had an internal error for initializing union of pointer-to-member-
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// functions. Workaround is to populate exactly one of the following function
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// pointers with a non-nullptr value.
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// @param value Value-result argument for storing the property's string value
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// @param suffix Argument portion of the property. For example, suffix would
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// be "5" for the property "rocksdb.num-files-at-level5". So far, only
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// certain string properties take an argument.
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bool (InternalStats::*handle_string)(std::string* value, Slice suffix);
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// @param value Value-result argument for storing the property's uint64 value
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// @param db Many of the int properties rely on DBImpl methods.
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// @param version Version is needed in case the property is retrieved without
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// holding db mutex, which is only supported for int properties.
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bool (InternalStats::*handle_int)(uint64_t* value, DBImpl* db,
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Version* version);
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// @param props Map of general properties to populate
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// @param suffix Argument portion of the property. (see handle_string)
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bool (InternalStats::*handle_map)(std::map<std::string, std::string>* props,
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Slice suffix);
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// handle the string type properties rely on DBImpl methods
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// @param value Value-result argument for storing the property's string value
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bool (DBImpl::*handle_string_dbimpl)(std::string* value);
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};
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extern const DBPropertyInfo* GetPropertyInfo(const Slice& property);
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#ifndef ROCKSDB_LITE
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#undef SCORE
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enum class LevelStatType {
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INVALID = 0,
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NUM_FILES,
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COMPACTED_FILES,
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SIZE_BYTES,
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SCORE,
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READ_GB,
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RN_GB,
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RNP1_GB,
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WRITE_GB,
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W_NEW_GB,
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MOVED_GB,
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WRITE_AMP,
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READ_MBPS,
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WRITE_MBPS,
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COMP_SEC,
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COMP_CPU_SEC,
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COMP_COUNT,
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AVG_SEC,
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KEY_IN,
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KEY_DROP,
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R_BLOB_GB,
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W_BLOB_GB,
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TOTAL // total number of types
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};
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struct LevelStat {
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// This what will be L?.property_name in the flat map returned to the user
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std::string property_name;
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// This will be what we will print in the header in the cli
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std::string header_name;
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};
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class InternalStats {
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public:
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static const std::map<LevelStatType, LevelStat> compaction_level_stats;
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enum InternalCFStatsType {
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L0_FILE_COUNT_LIMIT_SLOWDOWNS,
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LOCKED_L0_FILE_COUNT_LIMIT_SLOWDOWNS,
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MEMTABLE_LIMIT_STOPS,
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MEMTABLE_LIMIT_SLOWDOWNS,
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L0_FILE_COUNT_LIMIT_STOPS,
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LOCKED_L0_FILE_COUNT_LIMIT_STOPS,
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PENDING_COMPACTION_BYTES_LIMIT_SLOWDOWNS,
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PENDING_COMPACTION_BYTES_LIMIT_STOPS,
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WRITE_STALLS_ENUM_MAX,
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BYTES_FLUSHED,
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BYTES_INGESTED_ADD_FILE,
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INGESTED_NUM_FILES_TOTAL,
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INGESTED_LEVEL0_NUM_FILES_TOTAL,
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INGESTED_NUM_KEYS_TOTAL,
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INTERNAL_CF_STATS_ENUM_MAX,
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};
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enum InternalDBStatsType {
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kIntStatsWalFileBytes,
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kIntStatsWalFileSynced,
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kIntStatsBytesWritten,
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kIntStatsNumKeysWritten,
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kIntStatsWriteDoneByOther,
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kIntStatsWriteDoneBySelf,
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kIntStatsWriteWithWal,
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kIntStatsWriteStallMicros,
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kIntStatsNumMax,
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};
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InternalStats(int num_levels, SystemClock* clock, ColumnFamilyData* cfd);
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// Per level compaction stats. comp_stats_[level] stores the stats for
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// compactions that produced data for the specified "level".
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struct CompactionStats {
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uint64_t micros;
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uint64_t cpu_micros;
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// The number of bytes read from all non-output levels (table files)
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uint64_t bytes_read_non_output_levels;
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// The number of bytes read from the compaction output level (table files)
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uint64_t bytes_read_output_level;
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// The number of bytes read from blob files
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uint64_t bytes_read_blob;
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// Total number of bytes written to table files during compaction
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uint64_t bytes_written;
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// Total number of bytes written to blob files during compaction
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uint64_t bytes_written_blob;
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// Total number of bytes moved to the output level (table files)
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uint64_t bytes_moved;
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// The number of compaction input files in all non-output levels (table
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// files)
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int num_input_files_in_non_output_levels;
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// The number of compaction input files in the output level (table files)
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int num_input_files_in_output_level;
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// The number of compaction output files (table files)
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int num_output_files;
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// The number of compaction output files (blob files)
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int num_output_files_blob;
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// Total incoming entries during compaction between levels N and N+1
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uint64_t num_input_records;
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// Accumulated diff number of entries
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// (num input entries - num output entries) for compaction levels N and N+1
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uint64_t num_dropped_records;
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// Number of compactions done
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int count;
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// Number of compactions done per CompactionReason
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int counts[static_cast<int>(CompactionReason::kNumOfReasons)];
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explicit CompactionStats()
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: micros(0),
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cpu_micros(0),
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bytes_read_non_output_levels(0),
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bytes_read_output_level(0),
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bytes_read_blob(0),
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bytes_written(0),
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bytes_written_blob(0),
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bytes_moved(0),
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num_input_files_in_non_output_levels(0),
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num_input_files_in_output_level(0),
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num_output_files(0),
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num_output_files_blob(0),
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num_input_records(0),
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num_dropped_records(0),
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count(0) {
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int num_of_reasons = static_cast<int>(CompactionReason::kNumOfReasons);
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for (int i = 0; i < num_of_reasons; i++) {
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counts[i] = 0;
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}
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}
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explicit CompactionStats(CompactionReason reason, int c)
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: micros(0),
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cpu_micros(0),
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bytes_read_non_output_levels(0),
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bytes_read_output_level(0),
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bytes_read_blob(0),
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bytes_written(0),
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bytes_written_blob(0),
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bytes_moved(0),
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num_input_files_in_non_output_levels(0),
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num_input_files_in_output_level(0),
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num_output_files(0),
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num_output_files_blob(0),
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num_input_records(0),
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num_dropped_records(0),
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count(c) {
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int num_of_reasons = static_cast<int>(CompactionReason::kNumOfReasons);
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for (int i = 0; i < num_of_reasons; i++) {
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counts[i] = 0;
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}
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int r = static_cast<int>(reason);
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if (r >= 0 && r < num_of_reasons) {
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counts[r] = c;
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} else {
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count = 0;
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}
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}
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explicit CompactionStats(const CompactionStats& c)
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: micros(c.micros),
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cpu_micros(c.cpu_micros),
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bytes_read_non_output_levels(c.bytes_read_non_output_levels),
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bytes_read_output_level(c.bytes_read_output_level),
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bytes_read_blob(c.bytes_read_blob),
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bytes_written(c.bytes_written),
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bytes_written_blob(c.bytes_written_blob),
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bytes_moved(c.bytes_moved),
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num_input_files_in_non_output_levels(
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c.num_input_files_in_non_output_levels),
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num_input_files_in_output_level(c.num_input_files_in_output_level),
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num_output_files(c.num_output_files),
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num_output_files_blob(c.num_output_files_blob),
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num_input_records(c.num_input_records),
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num_dropped_records(c.num_dropped_records),
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count(c.count) {
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int num_of_reasons = static_cast<int>(CompactionReason::kNumOfReasons);
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for (int i = 0; i < num_of_reasons; i++) {
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counts[i] = c.counts[i];
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}
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}
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CompactionStats& operator=(const CompactionStats& c) {
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micros = c.micros;
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cpu_micros = c.cpu_micros;
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bytes_read_non_output_levels = c.bytes_read_non_output_levels;
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bytes_read_output_level = c.bytes_read_output_level;
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bytes_read_blob = c.bytes_read_blob;
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bytes_written = c.bytes_written;
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bytes_written_blob = c.bytes_written_blob;
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bytes_moved = c.bytes_moved;
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num_input_files_in_non_output_levels =
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c.num_input_files_in_non_output_levels;
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num_input_files_in_output_level = c.num_input_files_in_output_level;
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num_output_files = c.num_output_files;
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num_output_files_blob = c.num_output_files_blob;
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num_input_records = c.num_input_records;
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num_dropped_records = c.num_dropped_records;
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count = c.count;
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int num_of_reasons = static_cast<int>(CompactionReason::kNumOfReasons);
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for (int i = 0; i < num_of_reasons; i++) {
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counts[i] = c.counts[i];
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}
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return *this;
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}
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void Clear() {
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this->micros = 0;
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this->cpu_micros = 0;
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this->bytes_read_non_output_levels = 0;
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this->bytes_read_output_level = 0;
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this->bytes_read_blob = 0;
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this->bytes_written = 0;
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this->bytes_written_blob = 0;
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this->bytes_moved = 0;
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this->num_input_files_in_non_output_levels = 0;
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this->num_input_files_in_output_level = 0;
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this->num_output_files = 0;
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this->num_output_files_blob = 0;
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this->num_input_records = 0;
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this->num_dropped_records = 0;
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this->count = 0;
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int num_of_reasons = static_cast<int>(CompactionReason::kNumOfReasons);
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for (int i = 0; i < num_of_reasons; i++) {
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counts[i] = 0;
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}
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}
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void Add(const CompactionStats& c) {
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this->micros += c.micros;
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this->cpu_micros += c.cpu_micros;
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this->bytes_read_non_output_levels += c.bytes_read_non_output_levels;
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this->bytes_read_output_level += c.bytes_read_output_level;
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this->bytes_read_blob += c.bytes_read_blob;
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this->bytes_written += c.bytes_written;
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this->bytes_written_blob += c.bytes_written_blob;
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this->bytes_moved += c.bytes_moved;
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this->num_input_files_in_non_output_levels +=
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c.num_input_files_in_non_output_levels;
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this->num_input_files_in_output_level +=
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c.num_input_files_in_output_level;
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this->num_output_files += c.num_output_files;
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this->num_output_files_blob += c.num_output_files_blob;
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this->num_input_records += c.num_input_records;
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this->num_dropped_records += c.num_dropped_records;
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this->count += c.count;
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int num_of_reasons = static_cast<int>(CompactionReason::kNumOfReasons);
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for (int i = 0; i< num_of_reasons; i++) {
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counts[i] += c.counts[i];
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}
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}
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void Subtract(const CompactionStats& c) {
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this->micros -= c.micros;
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this->cpu_micros -= c.cpu_micros;
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this->bytes_read_non_output_levels -= c.bytes_read_non_output_levels;
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this->bytes_read_output_level -= c.bytes_read_output_level;
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this->bytes_read_blob -= c.bytes_read_blob;
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this->bytes_written -= c.bytes_written;
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this->bytes_written_blob -= c.bytes_written_blob;
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this->bytes_moved -= c.bytes_moved;
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this->num_input_files_in_non_output_levels -=
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c.num_input_files_in_non_output_levels;
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this->num_input_files_in_output_level -=
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c.num_input_files_in_output_level;
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this->num_output_files -= c.num_output_files;
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this->num_output_files_blob -= c.num_output_files_blob;
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this->num_input_records -= c.num_input_records;
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this->num_dropped_records -= c.num_dropped_records;
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this->count -= c.count;
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int num_of_reasons = static_cast<int>(CompactionReason::kNumOfReasons);
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for (int i = 0; i < num_of_reasons; i++) {
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counts[i] -= c.counts[i];
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}
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}
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};
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// For use with CacheEntryStatsCollector
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struct CacheEntryRoleStats {
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uint64_t cache_capacity = 0;
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std::string cache_id;
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std::array<uint64_t, kNumCacheEntryRoles> total_charges;
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std::array<size_t, kNumCacheEntryRoles> entry_counts;
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uint32_t collection_count = 0;
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uint32_t copies_of_last_collection = 0;
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uint64_t last_start_time_micros_ = 0;
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uint64_t last_end_time_micros_ = 0;
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void Clear() {
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// Wipe everything except collection_count
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uint32_t saved_collection_count = collection_count;
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*this = CacheEntryRoleStats();
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collection_count = saved_collection_count;
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}
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void BeginCollection(Cache*, SystemClock*, uint64_t start_time_micros);
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std::function<void(const Slice&, void*, size_t, Cache::DeleterFn)>
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GetEntryCallback();
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void EndCollection(Cache*, SystemClock*, uint64_t end_time_micros);
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void SkippedCollection();
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std::string ToString(SystemClock* clock) const;
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void ToMap(std::map<std::string, std::string>* values,
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SystemClock* clock) const;
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private:
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std::unordered_map<Cache::DeleterFn, CacheEntryRole> role_map_;
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uint64_t GetLastDurationMicros() const;
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};
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void Clear() {
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for (int i = 0; i < kIntStatsNumMax; i++) {
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db_stats_[i].store(0);
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}
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for (int i = 0; i < INTERNAL_CF_STATS_ENUM_MAX; i++) {
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cf_stats_count_[i] = 0;
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cf_stats_value_[i] = 0;
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}
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for (auto& comp_stat : comp_stats_) {
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comp_stat.Clear();
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}
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for (auto& h : file_read_latency_) {
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h.Clear();
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}
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blob_file_read_latency_.Clear();
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cf_stats_snapshot_.Clear();
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db_stats_snapshot_.Clear();
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bg_error_count_ = 0;
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started_at_ = clock_->NowMicros();
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}
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void AddCompactionStats(int level, Env::Priority thread_pri,
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const CompactionStats& stats) {
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comp_stats_[level].Add(stats);
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comp_stats_by_pri_[thread_pri].Add(stats);
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}
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void IncBytesMoved(int level, uint64_t amount) {
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comp_stats_[level].bytes_moved += amount;
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}
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void AddCFStats(InternalCFStatsType type, uint64_t value) {
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cf_stats_value_[type] += value;
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++cf_stats_count_[type];
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}
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void AddDBStats(InternalDBStatsType type, uint64_t value,
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bool concurrent = false) {
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auto& v = db_stats_[type];
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if (concurrent) {
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v.fetch_add(value, std::memory_order_relaxed);
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} else {
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v.store(v.load(std::memory_order_relaxed) + value,
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std::memory_order_relaxed);
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}
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}
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uint64_t GetDBStats(InternalDBStatsType type) {
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return db_stats_[type].load(std::memory_order_relaxed);
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}
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HistogramImpl* GetFileReadHist(int level) {
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return &file_read_latency_[level];
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}
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HistogramImpl* GetBlobFileReadHist() { return &blob_file_read_latency_; }
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uint64_t GetBackgroundErrorCount() const { return bg_error_count_; }
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uint64_t BumpAndGetBackgroundErrorCount() { return ++bg_error_count_; }
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bool GetStringProperty(const DBPropertyInfo& property_info,
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const Slice& property, std::string* value);
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bool GetMapProperty(const DBPropertyInfo& property_info,
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const Slice& property,
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std::map<std::string, std::string>* value);
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bool GetIntProperty(const DBPropertyInfo& property_info, uint64_t* value,
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DBImpl* db);
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bool GetIntPropertyOutOfMutex(const DBPropertyInfo& property_info,
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Version* version, uint64_t* value);
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// Unless there is a recent enough collection of the stats, collect and
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// saved new cache entry stats. If `foreground`, require data to be more
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// recent to skip re-collection.
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//
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// This should only be called while NOT holding the DB mutex.
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void CollectCacheEntryStats(bool foreground);
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const uint64_t* TEST_GetCFStatsValue() const { return cf_stats_value_; }
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const std::vector<CompactionStats>& TEST_GetCompactionStats() const {
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return comp_stats_;
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}
|
|
|
|
void TEST_GetCacheEntryRoleStats(CacheEntryRoleStats* stats, bool foreground);
|
|
|
|
// Store a mapping from the user-facing DB::Properties string to our
|
|
// DBPropertyInfo struct used internally for retrieving properties.
|
|
static const std::unordered_map<std::string, DBPropertyInfo> ppt_name_to_info;
|
|
|
|
private:
|
|
void DumpDBStats(std::string* value);
|
|
void DumpCFMapStats(std::map<std::string, std::string>* cf_stats);
|
|
void DumpCFMapStats(
|
|
const VersionStorageInfo* vstorage,
|
|
std::map<int, std::map<LevelStatType, double>>* level_stats,
|
|
CompactionStats* compaction_stats_sum);
|
|
void DumpCFMapStatsByPriority(
|
|
std::map<int, std::map<LevelStatType, double>>* priorities_stats);
|
|
void DumpCFMapStatsIOStalls(std::map<std::string, std::string>* cf_stats);
|
|
void DumpCFStats(std::string* value);
|
|
void DumpCFStatsNoFileHistogram(std::string* value);
|
|
void DumpCFFileHistogram(std::string* value);
|
|
|
|
bool GetBlockCacheForStats(Cache** block_cache);
|
|
|
|
// Per-DB stats
|
|
std::atomic<uint64_t> db_stats_[kIntStatsNumMax];
|
|
// Per-ColumnFamily stats
|
|
uint64_t cf_stats_value_[INTERNAL_CF_STATS_ENUM_MAX];
|
|
uint64_t cf_stats_count_[INTERNAL_CF_STATS_ENUM_MAX];
|
|
// Initialize/reference the collector in constructor so that we don't need
|
|
// additional synchronization in InternalStats, relying on synchronization
|
|
// in CacheEntryStatsCollector::GetStats. This collector is pinned in cache
|
|
// (through a shared_ptr) so that it does not get immediately ejected from
|
|
// a full cache, which would force a re-scan on the next GetStats.
|
|
std::shared_ptr<CacheEntryStatsCollector<CacheEntryRoleStats>>
|
|
cache_entry_stats_collector_;
|
|
// Per-ColumnFamily/level compaction stats
|
|
std::vector<CompactionStats> comp_stats_;
|
|
std::vector<CompactionStats> comp_stats_by_pri_;
|
|
std::vector<HistogramImpl> file_read_latency_;
|
|
HistogramImpl blob_file_read_latency_;
|
|
|
|
// Used to compute per-interval statistics
|
|
struct CFStatsSnapshot {
|
|
// ColumnFamily-level stats
|
|
CompactionStats comp_stats;
|
|
uint64_t ingest_bytes_flush; // Bytes written to L0 (Flush)
|
|
uint64_t stall_count; // Stall count
|
|
// Stats from compaction jobs - bytes written, bytes read, duration.
|
|
uint64_t compact_bytes_write;
|
|
uint64_t compact_bytes_read;
|
|
uint64_t compact_micros;
|
|
double seconds_up;
|
|
|
|
// AddFile specific stats
|
|
uint64_t ingest_bytes_addfile; // Total Bytes ingested
|
|
uint64_t ingest_files_addfile; // Total number of files ingested
|
|
uint64_t ingest_l0_files_addfile; // Total number of files ingested to L0
|
|
uint64_t ingest_keys_addfile; // Total number of keys ingested
|
|
|
|
CFStatsSnapshot()
|
|
: ingest_bytes_flush(0),
|
|
stall_count(0),
|
|
compact_bytes_write(0),
|
|
compact_bytes_read(0),
|
|
compact_micros(0),
|
|
seconds_up(0),
|
|
ingest_bytes_addfile(0),
|
|
ingest_files_addfile(0),
|
|
ingest_l0_files_addfile(0),
|
|
ingest_keys_addfile(0) {}
|
|
|
|
void Clear() {
|
|
comp_stats.Clear();
|
|
ingest_bytes_flush = 0;
|
|
stall_count = 0;
|
|
compact_bytes_write = 0;
|
|
compact_bytes_read = 0;
|
|
compact_micros = 0;
|
|
seconds_up = 0;
|
|
ingest_bytes_addfile = 0;
|
|
ingest_files_addfile = 0;
|
|
ingest_l0_files_addfile = 0;
|
|
ingest_keys_addfile = 0;
|
|
}
|
|
} cf_stats_snapshot_;
|
|
|
|
struct DBStatsSnapshot {
|
|
// DB-level stats
|
|
uint64_t ingest_bytes; // Bytes written by user
|
|
uint64_t wal_bytes; // Bytes written to WAL
|
|
uint64_t wal_synced; // Number of times WAL is synced
|
|
uint64_t write_with_wal; // Number of writes that request WAL
|
|
// These count the number of writes processed by the calling thread or
|
|
// another thread.
|
|
uint64_t write_other;
|
|
uint64_t write_self;
|
|
// Total number of keys written. write_self and write_other measure number
|
|
// of write requests written, Each of the write request can contain updates
|
|
// to multiple keys. num_keys_written is total number of keys updated by all
|
|
// those writes.
|
|
uint64_t num_keys_written;
|
|
// Total time writes delayed by stalls.
|
|
uint64_t write_stall_micros;
|
|
double seconds_up;
|
|
|
|
DBStatsSnapshot()
|
|
: ingest_bytes(0),
|
|
wal_bytes(0),
|
|
wal_synced(0),
|
|
write_with_wal(0),
|
|
write_other(0),
|
|
write_self(0),
|
|
num_keys_written(0),
|
|
write_stall_micros(0),
|
|
seconds_up(0) {}
|
|
|
|
void Clear() {
|
|
ingest_bytes = 0;
|
|
wal_bytes = 0;
|
|
wal_synced = 0;
|
|
write_with_wal = 0;
|
|
write_other = 0;
|
|
write_self = 0;
|
|
num_keys_written = 0;
|
|
write_stall_micros = 0;
|
|
seconds_up = 0;
|
|
}
|
|
} db_stats_snapshot_;
|
|
|
|
// Handler functions for getting property values. They use "value" as a value-
|
|
// result argument, and return true upon successfully setting "value".
|
|
bool HandleNumFilesAtLevel(std::string* value, Slice suffix);
|
|
bool HandleCompressionRatioAtLevelPrefix(std::string* value, Slice suffix);
|
|
bool HandleLevelStats(std::string* value, Slice suffix);
|
|
bool HandleStats(std::string* value, Slice suffix);
|
|
bool HandleCFMapStats(std::map<std::string, std::string>* compaction_stats,
|
|
Slice suffix);
|
|
bool HandleCFStats(std::string* value, Slice suffix);
|
|
bool HandleCFStatsNoFileHistogram(std::string* value, Slice suffix);
|
|
bool HandleCFFileHistogram(std::string* value, Slice suffix);
|
|
bool HandleDBStats(std::string* value, Slice suffix);
|
|
bool HandleSsTables(std::string* value, Slice suffix);
|
|
bool HandleAggregatedTableProperties(std::string* value, Slice suffix);
|
|
bool HandleAggregatedTablePropertiesAtLevel(std::string* value, Slice suffix);
|
|
bool HandleAggregatedTablePropertiesMap(
|
|
std::map<std::string, std::string>* values, Slice suffix);
|
|
bool HandleAggregatedTablePropertiesAtLevelMap(
|
|
std::map<std::string, std::string>* values, Slice suffix);
|
|
bool HandleNumImmutableMemTable(uint64_t* value, DBImpl* db,
|
|
Version* version);
|
|
bool HandleNumImmutableMemTableFlushed(uint64_t* value, DBImpl* db,
|
|
Version* version);
|
|
bool HandleMemTableFlushPending(uint64_t* value, DBImpl* db,
|
|
Version* version);
|
|
bool HandleNumRunningFlushes(uint64_t* value, DBImpl* db, Version* version);
|
|
bool HandleCompactionPending(uint64_t* value, DBImpl* db, Version* version);
|
|
bool HandleNumRunningCompactions(uint64_t* value, DBImpl* db,
|
|
Version* version);
|
|
bool HandleBackgroundErrors(uint64_t* value, DBImpl* db, Version* version);
|
|
bool HandleCurSizeActiveMemTable(uint64_t* value, DBImpl* db,
|
|
Version* version);
|
|
bool HandleCurSizeAllMemTables(uint64_t* value, DBImpl* db, Version* version);
|
|
bool HandleSizeAllMemTables(uint64_t* value, DBImpl* db, Version* version);
|
|
bool HandleNumEntriesActiveMemTable(uint64_t* value, DBImpl* db,
|
|
Version* version);
|
|
bool HandleNumEntriesImmMemTables(uint64_t* value, DBImpl* db,
|
|
Version* version);
|
|
bool HandleNumDeletesActiveMemTable(uint64_t* value, DBImpl* db,
|
|
Version* version);
|
|
bool HandleNumDeletesImmMemTables(uint64_t* value, DBImpl* db,
|
|
Version* version);
|
|
bool HandleEstimateNumKeys(uint64_t* value, DBImpl* db, Version* version);
|
|
bool HandleNumSnapshots(uint64_t* value, DBImpl* db, Version* version);
|
|
bool HandleOldestSnapshotTime(uint64_t* value, DBImpl* db, Version* version);
|
|
bool HandleOldestSnapshotSequence(uint64_t* value, DBImpl* db,
|
|
Version* version);
|
|
bool HandleNumLiveVersions(uint64_t* value, DBImpl* db, Version* version);
|
|
bool HandleCurrentSuperVersionNumber(uint64_t* value, DBImpl* db,
|
|
Version* version);
|
|
bool HandleIsFileDeletionsEnabled(uint64_t* value, DBImpl* db,
|
|
Version* version);
|
|
bool HandleBaseLevel(uint64_t* value, DBImpl* db, Version* version);
|
|
bool HandleTotalSstFilesSize(uint64_t* value, DBImpl* db, Version* version);
|
|
bool HandleLiveSstFilesSize(uint64_t* value, DBImpl* db, Version* version);
|
|
bool HandleEstimatePendingCompactionBytes(uint64_t* value, DBImpl* db,
|
|
Version* version);
|
|
bool HandleEstimateTableReadersMem(uint64_t* value, DBImpl* db,
|
|
Version* version);
|
|
bool HandleEstimateLiveDataSize(uint64_t* value, DBImpl* db,
|
|
Version* version);
|
|
bool HandleMinLogNumberToKeep(uint64_t* value, DBImpl* db, Version* version);
|
|
bool HandleMinObsoleteSstNumberToKeep(uint64_t* value, DBImpl* db,
|
|
Version* version);
|
|
bool HandleActualDelayedWriteRate(uint64_t* value, DBImpl* db,
|
|
Version* version);
|
|
bool HandleIsWriteStopped(uint64_t* value, DBImpl* db, Version* version);
|
|
bool HandleEstimateOldestKeyTime(uint64_t* value, DBImpl* db,
|
|
Version* version);
|
|
bool HandleBlockCacheCapacity(uint64_t* value, DBImpl* db, Version* version);
|
|
bool HandleBlockCacheUsage(uint64_t* value, DBImpl* db, Version* version);
|
|
bool HandleBlockCachePinnedUsage(uint64_t* value, DBImpl* db,
|
|
Version* version);
|
|
bool HandleBlockCacheEntryStats(std::string* value, Slice suffix);
|
|
bool HandleBlockCacheEntryStatsMap(std::map<std::string, std::string>* values,
|
|
Slice suffix);
|
|
bool HandleLiveSstFilesSizeAtTemperature(std::string* value, Slice suffix);
|
|
bool HandleNumBlobFiles(uint64_t* value, DBImpl* db, Version* version);
|
|
bool HandleBlobStats(std::string* value, Slice suffix);
|
|
bool HandleTotalBlobFileSize(uint64_t* value, DBImpl* db, Version* version);
|
|
bool HandleLiveBlobFileSize(uint64_t* value, DBImpl* db, Version* version);
|
|
// Total number of background errors encountered. Every time a flush task
|
|
// or compaction task fails, this counter is incremented. The failure can
|
|
// be caused by any possible reason, including file system errors, out of
|
|
// resources, or input file corruption. Failing when retrying the same flush
|
|
// or compaction will cause the counter to increase too.
|
|
uint64_t bg_error_count_;
|
|
|
|
const int number_levels_;
|
|
SystemClock* clock_;
|
|
ColumnFamilyData* cfd_;
|
|
uint64_t started_at_;
|
|
};
|
|
|
|
#else
|
|
|
|
class InternalStats {
|
|
public:
|
|
enum InternalCFStatsType {
|
|
L0_FILE_COUNT_LIMIT_SLOWDOWNS,
|
|
LOCKED_L0_FILE_COUNT_LIMIT_SLOWDOWNS,
|
|
MEMTABLE_LIMIT_STOPS,
|
|
MEMTABLE_LIMIT_SLOWDOWNS,
|
|
L0_FILE_COUNT_LIMIT_STOPS,
|
|
LOCKED_L0_FILE_COUNT_LIMIT_STOPS,
|
|
PENDING_COMPACTION_BYTES_LIMIT_SLOWDOWNS,
|
|
PENDING_COMPACTION_BYTES_LIMIT_STOPS,
|
|
WRITE_STALLS_ENUM_MAX,
|
|
BYTES_FLUSHED,
|
|
BYTES_INGESTED_ADD_FILE,
|
|
INGESTED_NUM_FILES_TOTAL,
|
|
INGESTED_LEVEL0_NUM_FILES_TOTAL,
|
|
INGESTED_NUM_KEYS_TOTAL,
|
|
INTERNAL_CF_STATS_ENUM_MAX,
|
|
};
|
|
|
|
enum InternalDBStatsType {
|
|
kIntStatsWalFileBytes,
|
|
kIntStatsWalFileSynced,
|
|
kIntStatsBytesWritten,
|
|
kIntStatsNumKeysWritten,
|
|
kIntStatsWriteDoneByOther,
|
|
kIntStatsWriteDoneBySelf,
|
|
kIntStatsWriteWithWal,
|
|
kIntStatsWriteStallMicros,
|
|
kIntStatsNumMax,
|
|
};
|
|
|
|
InternalStats(int /*num_levels*/, SystemClock* /*clock*/,
|
|
ColumnFamilyData* /*cfd*/) {}
|
|
|
|
struct CompactionStats {
|
|
uint64_t micros;
|
|
uint64_t cpu_micros;
|
|
uint64_t bytes_read_non_output_levels;
|
|
uint64_t bytes_read_output_level;
|
|
uint64_t bytes_read_blob;
|
|
uint64_t bytes_written;
|
|
uint64_t bytes_written_blob;
|
|
uint64_t bytes_moved;
|
|
int num_input_files_in_non_output_levels;
|
|
int num_input_files_in_output_level;
|
|
int num_output_files;
|
|
int num_output_files_blob;
|
|
uint64_t num_input_records;
|
|
uint64_t num_dropped_records;
|
|
int count;
|
|
|
|
explicit CompactionStats() {}
|
|
|
|
explicit CompactionStats(CompactionReason /*reason*/, int /*c*/) {}
|
|
|
|
explicit CompactionStats(const CompactionStats& /*c*/) {}
|
|
|
|
void Add(const CompactionStats& /*c*/) {}
|
|
|
|
void Subtract(const CompactionStats& /*c*/) {}
|
|
};
|
|
|
|
void AddCompactionStats(int /*level*/, Env::Priority /*thread_pri*/,
|
|
const CompactionStats& /*stats*/) {}
|
|
|
|
void IncBytesMoved(int /*level*/, uint64_t /*amount*/) {}
|
|
|
|
void AddCFStats(InternalCFStatsType /*type*/, uint64_t /*value*/) {}
|
|
|
|
void AddDBStats(InternalDBStatsType /*type*/, uint64_t /*value*/,
|
|
bool /*concurrent */ = false) {}
|
|
|
|
HistogramImpl* GetFileReadHist(int /*level*/) { return nullptr; }
|
|
|
|
HistogramImpl* GetBlobFileReadHist() { return nullptr; }
|
|
|
|
uint64_t GetBackgroundErrorCount() const { return 0; }
|
|
|
|
uint64_t BumpAndGetBackgroundErrorCount() { return 0; }
|
|
|
|
bool GetStringProperty(const DBPropertyInfo& /*property_info*/,
|
|
const Slice& /*property*/, std::string* /*value*/) {
|
|
return false;
|
|
}
|
|
|
|
bool GetMapProperty(const DBPropertyInfo& /*property_info*/,
|
|
const Slice& /*property*/,
|
|
std::map<std::string, std::string>* /*value*/) {
|
|
return false;
|
|
}
|
|
|
|
bool GetIntProperty(const DBPropertyInfo& /*property_info*/, uint64_t* /*value*/,
|
|
DBImpl* /*db*/) const {
|
|
return false;
|
|
}
|
|
|
|
bool GetIntPropertyOutOfMutex(const DBPropertyInfo& /*property_info*/,
|
|
Version* /*version*/, uint64_t* /*value*/) const {
|
|
return false;
|
|
}
|
|
};
|
|
#endif // !ROCKSDB_LITE
|
|
|
|
} // namespace ROCKSDB_NAMESPACE
|
|
|