fork of https://github.com/oxigraph/rocksdb and https://github.com/facebook/rocksdb for nextgraph and oxigraph
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271 lines
9.0 KiB
271 lines
9.0 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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#pragma once
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#ifndef ROCKSDB_LITE
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#include <list>
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#include <map>
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#include <queue>
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#include <set>
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#include <utility>
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#include <vector>
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#include "rocksdb/env.h"
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#include "rocksdb/trace_reader_writer.h"
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#include "rocksdb/write_batch.h"
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#include "util/trace_replay.h"
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namespace rocksdb {
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class DBImpl;
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class WriteBatch;
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enum TraceOperationType : int {
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kGet = 0,
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kPut = 1,
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kDelete = 2,
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kSingleDelete = 3,
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kRangeDelete = 4,
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kMerge = 5,
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kIteratorSeek = 6,
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kIteratorSeekForPrev = 7,
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kTaTypeNum = 8
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};
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struct TraceUnit {
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uint64_t ts;
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uint32_t type;
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uint32_t cf_id;
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size_t value_size;
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std::string key;
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};
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struct TypeCorrelation {
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uint64_t count;
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uint64_t total_ts;
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};
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struct StatsUnit {
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uint64_t key_id;
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uint64_t access_count;
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uint64_t latest_ts;
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uint64_t succ_count; // current only used to count Get if key found
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uint32_t cf_id;
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size_t value_size;
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std::vector<TypeCorrelation> v_correlation;
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};
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class AnalyzerOptions {
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public:
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std::vector<std::vector<int>> correlation_map;
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std::vector<std::pair<int, int>> correlation_list;
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AnalyzerOptions();
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~AnalyzerOptions();
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void SparseCorrelationInput(const std::string& in_str);
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};
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// Note that, for the variable names in the trace_analyzer,
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// Starting with 'a_' means the variable is used for 'accessed_keys'.
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// Starting with 'w_' means it is used for 'the whole key space'.
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// Ending with '_f' means a file write or reader pointer.
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// For example, 'a_count' means 'accessed_keys_count',
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// 'w_key_f' means 'whole_key_space_file'.
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struct TraceStats {
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uint32_t cf_id;
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std::string cf_name;
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uint64_t a_count;
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uint64_t a_succ_count;
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uint64_t a_key_id;
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uint64_t a_key_size_sqsum;
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uint64_t a_key_size_sum;
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uint64_t a_key_mid;
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uint64_t a_value_size_sqsum;
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uint64_t a_value_size_sum;
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uint64_t a_value_mid;
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uint32_t a_peak_qps;
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double a_ave_qps;
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std::map<std::string, StatsUnit> a_key_stats;
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std::map<uint64_t, uint64_t> a_count_stats;
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std::map<uint64_t, uint64_t> a_key_size_stats;
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std::map<uint64_t, uint64_t> a_value_size_stats;
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std::map<uint32_t, uint32_t> a_qps_stats;
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std::map<uint32_t, std::map<std::string, uint32_t>> a_qps_prefix_stats;
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std::priority_queue<std::pair<uint64_t, std::string>,
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std::vector<std::pair<uint64_t, std::string>>,
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std::greater<std::pair<uint64_t, std::string>>>
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top_k_queue;
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std::priority_queue<std::pair<uint64_t, std::string>,
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std::vector<std::pair<uint64_t, std::string>>,
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std::greater<std::pair<uint64_t, std::string>>>
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top_k_prefix_access;
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std::priority_queue<std::pair<double, std::string>,
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std::vector<std::pair<double, std::string>>,
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std::greater<std::pair<double, std::string>>>
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top_k_prefix_ave;
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std::priority_queue<std::pair<uint32_t, uint32_t>,
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std::vector<std::pair<uint32_t, uint32_t>>,
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std::greater<std::pair<uint32_t, uint32_t>>>
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top_k_qps_sec;
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std::list<TraceUnit> time_series;
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std::vector<std::pair<uint64_t, uint64_t>> correlation_output;
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std::unique_ptr<rocksdb::WritableFile> time_series_f;
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std::unique_ptr<rocksdb::WritableFile> a_key_f;
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std::unique_ptr<rocksdb::WritableFile> a_count_dist_f;
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std::unique_ptr<rocksdb::WritableFile> a_prefix_cut_f;
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std::unique_ptr<rocksdb::WritableFile> a_value_size_f;
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std::unique_ptr<rocksdb::WritableFile> a_qps_f;
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std::unique_ptr<rocksdb::WritableFile> a_top_qps_prefix_f;
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std::unique_ptr<rocksdb::WritableFile> w_key_f;
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std::unique_ptr<rocksdb::WritableFile> w_prefix_cut_f;
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TraceStats();
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~TraceStats();
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};
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struct TypeUnit {
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std::string type_name;
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bool enabled;
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uint64_t total_keys;
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uint64_t total_access;
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uint64_t total_succ_access;
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std::map<uint32_t, TraceStats> stats;
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};
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struct CfUnit {
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uint32_t cf_id;
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uint64_t w_count; // total keys in this cf if we use the whole key space
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uint64_t a_count; // the total keys in this cf that are accessed
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std::map<uint64_t, uint64_t> w_key_size_stats; // whole key space key size
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// statistic this cf
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};
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class TraceAnalyzer {
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public:
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TraceAnalyzer(std::string& trace_path, std::string& output_path,
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AnalyzerOptions _analyzer_opts);
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~TraceAnalyzer();
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Status PrepareProcessing();
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Status StartProcessing();
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Status MakeStatistics();
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Status ReProcessing();
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Status EndProcessing();
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Status WriteTraceUnit(TraceUnit& unit);
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// The trace processing functions for different type
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Status HandleGet(uint32_t column_family_id, const std::string& key,
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const uint64_t& ts, const uint32_t& get_ret);
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Status HandlePut(uint32_t column_family_id, const Slice& key,
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const Slice& value);
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Status HandleDelete(uint32_t column_family_id, const Slice& key);
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Status HandleSingleDelete(uint32_t column_family_id, const Slice& key);
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Status HandleDeleteRange(uint32_t column_family_id, const Slice& begin_key,
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const Slice& end_key);
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Status HandleMerge(uint32_t column_family_id, const Slice& key,
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const Slice& value);
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Status HandleIter(uint32_t column_family_id, const std::string& key,
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const uint64_t& ts, TraceType& trace_type);
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std::vector<TypeUnit>& GetTaVector() { return ta_; }
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private:
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rocksdb::Env* env_;
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EnvOptions env_options_;
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std::unique_ptr<TraceReader> trace_reader_;
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size_t offset_;
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char buffer_[1024];
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uint64_t c_time_;
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std::string trace_name_;
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std::string output_path_;
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AnalyzerOptions analyzer_opts_;
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uint64_t total_requests_;
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uint64_t total_access_keys_;
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uint64_t total_gets_;
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uint64_t total_writes_;
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uint64_t begin_time_;
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uint64_t end_time_;
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uint64_t time_series_start_;
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std::unique_ptr<rocksdb::WritableFile> trace_sequence_f_; // readable trace
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std::unique_ptr<rocksdb::WritableFile> qps_f_; // overall qps
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std::unique_ptr<rocksdb::SequentialFile> wkey_input_f_;
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std::vector<TypeUnit> ta_; // The main statistic collecting data structure
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std::map<uint32_t, CfUnit> cfs_; // All the cf_id appears in this trace;
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std::vector<uint32_t> qps_peak_;
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std::vector<double> qps_ave_;
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Status ReadTraceHeader(Trace* header);
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Status ReadTraceFooter(Trace* footer);
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Status ReadTraceRecord(Trace* trace);
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Status KeyStatsInsertion(const uint32_t& type, const uint32_t& cf_id,
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const std::string& key, const size_t value_size,
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const uint64_t ts);
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Status StatsUnitCorrelationUpdate(StatsUnit& unit, const uint32_t& type,
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const uint64_t& ts, const std::string& key);
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Status OpenStatsOutputFiles(const std::string& type, TraceStats& new_stats);
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Status CreateOutputFile(const std::string& type, const std::string& cf_name,
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const std::string& ending,
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std::unique_ptr<rocksdb::WritableFile>* f_ptr);
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void CloseOutputFiles();
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void PrintStatistics();
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Status TraceUnitWriter(std::unique_ptr<rocksdb::WritableFile>& f_ptr,
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TraceUnit& unit);
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Status WriteTraceSequence(const uint32_t& type, const uint32_t& cf_id,
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const std::string& key, const size_t value_size,
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const uint64_t ts);
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Status MakeStatisticKeyStatsOrPrefix(TraceStats& stats);
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Status MakeStatisticCorrelation(TraceStats& stats, StatsUnit& unit);
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Status MakeStatisticQPS();
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};
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// write bach handler to be used for WriteBache iterator
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// when processing the write trace
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class TraceWriteHandler : public WriteBatch::Handler {
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public:
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TraceWriteHandler() { ta_ptr = nullptr; }
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explicit TraceWriteHandler(TraceAnalyzer* _ta_ptr) { ta_ptr = _ta_ptr; }
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~TraceWriteHandler() {}
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virtual Status PutCF(uint32_t column_family_id, const Slice& key,
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const Slice& value) override {
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return ta_ptr->HandlePut(column_family_id, key, value);
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}
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virtual Status DeleteCF(uint32_t column_family_id,
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const Slice& key) override {
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return ta_ptr->HandleDelete(column_family_id, key);
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}
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virtual Status SingleDeleteCF(uint32_t column_family_id,
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const Slice& key) override {
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return ta_ptr->HandleSingleDelete(column_family_id, key);
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}
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virtual Status DeleteRangeCF(uint32_t column_family_id,
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const Slice& begin_key,
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const Slice& end_key) override {
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return ta_ptr->HandleDeleteRange(column_family_id, begin_key, end_key);
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}
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virtual Status MergeCF(uint32_t column_family_id, const Slice& key,
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const Slice& value) override {
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return ta_ptr->HandleMerge(column_family_id, key, value);
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}
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private:
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TraceAnalyzer* ta_ptr;
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};
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int trace_analyzer_tool(int argc, char** argv);
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} // namespace rocksdb
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#endif // ROCKSDB_LITE
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