// Copyright (c) 2013, Facebook, Inc. All rights reserved.
// This source code is licensed under the BSD-style license found in the
// LICENSE file in the root directory of this source tree. An additional grant
// of patent rights can be found in the PATENTS file in the same directory.
#include "db/event_logger_helpers.h"
namespace rocksdb {
namespace {
inline double SafeDivide(double a, double b) { return b == 0.0 ? 0 : a / b; }
} // namespace
void EventLoggerHelpers::LogTableFileCreation(
EventLogger* event_logger, int job_id, uint64_t file_number,
uint64_t file_size, const TableProperties& table_properties) {
auto stream = event_logger->Log();
stream << "job" << job_id << "event"
<< "table_file_creation"
<< "file_number" << file_number << "file_size" << file_size
<< "table_properties";
stream.StartObject();
// basic properties:
stream << "data_size" << table_properties.data_size
<< "index_size" << table_properties.index_size
<< "filter_size" << table_properties.filter_size
<< "raw_key_size" << table_properties.raw_key_size
<< "raw_average_key_size" << SafeDivide(table_properties.raw_key_size,
table_properties.num_entries)
<< "raw_value_size" << table_properties.raw_value_size
<< "raw_average_value_size" << SafeDivide(
table_properties.raw_value_size, table_properties.num_entries)
<< "num_data_blocks" << table_properties.num_data_blocks
<< "num_entries" << table_properties.num_entries
<< "filter_policy_name" << table_properties.filter_policy_name;
// user collected properties
for (const auto& prop : table_properties.user_collected_properties) {
stream << prop.first << prop.second;
}
stream.EndObject();
}
} // namespace rocksdb