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/**
* Copyright (C) 2018-present MongoDB, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the Server Side Public License, version 1,
* as published by MongoDB, Inc.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* Server Side Public License for more details.
*
* You should have received a copy of the Server Side Public License
* along with this program. If not, see
* <http://www.mongodb.com/licensing/server-side-public-license>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the Server Side Public License in all respects for
* all of the code used other than as permitted herein. If you modify file(s)
* with this exception, you may extend this exception to your version of the
* file(s), but you are not obligated to do so. If you do not wish to do so,
* delete this exception statement from your version. If you delete this
* exception statement from all source files in the program, then also delete
* it in the license file.
*/
#include "mongo/platform/basic.h"
#include "mongo/executor/connection_pool_stats.h"
#include "mongo/bson/bsonobjbuilder.h"
namespace mongo {
namespace executor {
ConnectionStatsPer::ConnectionStatsPer(
size_t nInUse, size_t nAvailable, size_t nCreated, size_t nRefreshing, size_t nRefreshed)
: inUse(nInUse),
available(nAvailable),
created(nCreated),
refreshing(nRefreshing),
refreshed(nRefreshed) {}
ConnectionStatsPer::ConnectionStatsPer() = default;
ConnectionStatsPer& ConnectionStatsPer::operator+=(const ConnectionStatsPer& other) {
inUse += other.inUse;
available += other.available;
created += other.created;
refreshing += other.refreshing;
refreshed += other.refreshed;
return *this;
}
void ConnectionPoolStats::updateStatsForHost(std::string pool,
HostAndPort host,
ConnectionStatsPer newStats) {
if (newStats.created == 0) {
// A pool that has never been successfully used does not get listed
return;
}
// Update stats for this pool
auto& byPool = statsByPool[pool];
byPool += newStats;
// Update stats for this host.
statsByHost[host] += newStats;
byPool.statsByHost[host] += newStats;
// Update total connection stats.
totalInUse += newStats.inUse;
totalAvailable += newStats.available;
totalCreated += newStats.created;
totalRefreshing += newStats.refreshing;
totalRefreshed += newStats.refreshed;
}
void ConnectionPoolStats::appendToBSON(mongo::BSONObjBuilder& result, bool forFTDC) {
result.appendNumber("totalInUse", static_cast<long long>(totalInUse));
result.appendNumber("totalAvailable", static_cast<long long>(totalAvailable));
result.appendNumber("totalCreated", static_cast<long long>(totalCreated));
result.appendNumber("totalRefreshing", static_cast<long long>(totalRefreshing));
result.appendNumber("totalRefreshed", static_cast<long long>(totalRefreshed));
if (forFTDC) {
BSONObjBuilder poolBuilder(result.subobjStart("connectionsInUsePerPool"));
for (const auto& pool : statsByPool) {
BSONObjBuilder poolInfo(poolBuilder.subobjStart(pool.first));
auto& poolStats = pool.second;
poolInfo.appendNumber("poolInUse", static_cast<long long>(poolStats.inUse));
for (const auto& host : poolStats.statsByHost) {
auto hostStats = host.second;
poolInfo.appendNumber(host.first.toString(),
static_cast<long long>(hostStats.inUse));
}
}
return;
}
// Process pools stats.
{
if (strategy) {
result.append("replicaSetMatchingStrategy", matchingStrategyToString(*strategy));
}
BSONObjBuilder poolBuilder(result.subobjStart("pools"));
for (const auto& pool : statsByPool) {
BSONObjBuilder poolInfo(poolBuilder.subobjStart(pool.first));
auto& poolStats = pool.second;
poolInfo.appendNumber("poolInUse", static_cast<long long>(poolStats.inUse));
poolInfo.appendNumber("poolAvailable", static_cast<long long>(poolStats.available));
poolInfo.appendNumber("poolCreated", static_cast<long long>(poolStats.created));
poolInfo.appendNumber("poolRefreshing", static_cast<long long>(poolStats.refreshing));
poolInfo.appendNumber("poolRefreshed", static_cast<long long>(poolStats.refreshed));
for (const auto& host : poolStats.statsByHost) {
BSONObjBuilder hostInfo(poolInfo.subobjStart(host.first.toString()));
auto& hostStats = host.second;
hostInfo.appendNumber("inUse", static_cast<long long>(hostStats.inUse));
hostInfo.appendNumber("available", static_cast<long long>(hostStats.available));
hostInfo.appendNumber("created", static_cast<long long>(hostStats.created));
hostInfo.appendNumber("refreshing", static_cast<long long>(hostStats.refreshing));
hostInfo.appendNumber("refreshed", static_cast<long long>(hostStats.refreshed));
}
}
}
// Processes hosts stats.
{
BSONObjBuilder hostBuilder(result.subobjStart("hosts"));
for (auto&& host : statsByHost) {
BSONObjBuilder hostInfo(hostBuilder.subobjStart(host.first.toString()));
auto hostStats = host.second;
hostInfo.appendNumber("inUse", static_cast<long long>(hostStats.inUse));
hostInfo.appendNumber("available", static_cast<long long>(hostStats.available));
hostInfo.appendNumber("created", static_cast<long long>(hostStats.created));
hostInfo.appendNumber("refreshing", static_cast<long long>(hostStats.refreshing));
hostInfo.appendNumber("refreshed", static_cast<long long>(hostStats.refreshed));
}
}
}
} // namespace executor
} // namespace mongo
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