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rocksdb/db/db_stats_logger.cc

73 lines
2.1 KiB

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