93 lines
2.4 KiB
C++
93 lines
2.4 KiB
C++
// 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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#include "db/db_impl.h"
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#include <string>
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#include <stdint.h>
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#include "db/version_set.h"
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#include "leveldb/db.h"
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#include "leveldb/env.h"
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#include "port/port.h"
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#include "util/mutexlock.h"
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namespace leveldb {
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void DBImpl::MaybeScheduleLogDBDeployStats() {
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// There is a lock in the actual logger.
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if (!logger_ || options_.db_stats_log_interval < 0
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|| host_name_.empty()) {
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return;
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}
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if(bg_logstats_scheduled_ || shutting_down_.Acquire_Load()) {
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// Already scheduled
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} else {
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int64_t current_ts = 0;
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Status st = env_->GetCurrentTime(¤t_ts);
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if (!st.ok()) {
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return;
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}
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if ((current_ts - last_log_ts) < options_.db_stats_log_interval) {
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return;
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}
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last_log_ts = current_ts;
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bg_logstats_scheduled_ = true;
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env_->Schedule(&DBImpl::BGLogDBDeployStats, this);
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}
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}
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void DBImpl::BGLogDBDeployStats(void* db) {
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DBImpl* db_inst = reinterpret_cast<DBImpl*>(db);
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db_inst->LogDBDeployStats();
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}
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void DBImpl::LogDBDeployStats() {
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mutex_.Lock();
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if (shutting_down_.Acquire_Load()) {
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bg_logstats_scheduled_ = false;
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bg_cv_.SignalAll();
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mutex_.Unlock();
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return;
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}
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std::string version_info;
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version_info += boost::lexical_cast<std::string>(kMajorVersion);
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version_info += ".";
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version_info += boost::lexical_cast<std::string>(kMinorVersion);
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uint64_t file_total_size = 0;
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uint32_t file_total_num = 0;
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for (int i = 0; i < versions_->NumberLevels(); i++) {
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file_total_num += versions_->NumLevelFiles(i);
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file_total_size += versions_->NumLevelBytes(i);
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}
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VersionSet::LevelSummaryStorage scratch;
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const char* file_num_summary = versions_->LevelSummary(&scratch);
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std::string file_num_per_level(file_num_summary);
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const char* file_size_summary = versions_->LevelDataSizeSummary(
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&scratch);
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std::string data_size_per_level(file_num_summary);
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mutex_.Unlock();
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int64_t unix_ts;
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env_->GetCurrentTime(&unix_ts);
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std::string data_dir;
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env_->GetAbsolutePath(dbname_, &data_dir);
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logger_->Log_Deploy_Stats(version_info, host_name_,
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data_dir, file_total_size, file_total_num, file_num_per_level,
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data_size_per_level, unix_ts);
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mutex_.Lock();
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bg_logstats_scheduled_ = false;
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bg_cv_.SignalAll();
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mutex_.Unlock();
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}
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}
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