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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.
*/
#pragma once
#include <string>
#include "mongo/bson/bsonobjbuilder.h"
#include "mongo/db/commands.h"
#include "mongo/db/ftdc/collector.h"
#include "mongo/db/ftdc/config.h"
#include "mongo/db/ftdc/controller.h"
#include "mongo/db/jsobj.h"
#include "mongo/db/operation_context.h"
#include "mongo/stdx/functional.h"
namespace mongo {
/**
* Function that allows FTDC server components to register their own collectors as needed.
*/
using RegisterCollectorsFunction = stdx::function<void(FTDCController*)>;
/**
* An enum that decides whether FTDC will startup as part of startup or if its deferred to later.
*/
enum class FTDCStartMode {
/**
* Skip starting FTDC since it missing a file storage location.
*/
kSkipStart,
/**
* Start FTDC because it has a path to store files.
*/
kStart,
};
/**
* Start Full Time Data Capture
* Starts 1 thread.
*
* See MongoD and MongoS specific functions.
*/
void startFTDC(boost::filesystem::path& path,
FTDCStartMode startupMode,
RegisterCollectorsFunction registerCollectors);
/**
* Stop Full Time Data Capture
*
* See MongoD and MongoS specific functions.
*/
void stopFTDC();
/**
* A simple FTDC Collector that runs Commands.
*/
class FTDCSimpleInternalCommandCollector : public FTDCCollectorInterface {
public:
FTDCSimpleInternalCommandCollector(StringData command,
StringData name,
StringData ns,
BSONObj cmdObj);
void collect(OperationContext* opCtx, BSONObjBuilder& builder) override;
std::string name() const override;
private:
std::string _name;
const OpMsgRequest _request;
};
/**
* FTDC startup parameters.
*
* Used to provide default values from FTDCConfig to the FTDC set parameters.
*/
struct FTDCStartupParams {
AtomicWord<bool> enabled;
AtomicWord<int> periodMillis;
AtomicWord<int> maxDirectorySizeMB;
AtomicWord<int> maxFileSizeMB;
AtomicWord<int> maxSamplesPerArchiveMetricChunk;
AtomicWord<int> maxSamplesPerInterimMetricChunk;
FTDCStartupParams()
: enabled(FTDCConfig::kEnabledDefault),
periodMillis(FTDCConfig::kPeriodMillisDefault),
// Scale the values down since are defaults are in bytes, but the user interface is MB
maxDirectorySizeMB(FTDCConfig::kMaxDirectorySizeBytesDefault / (1024 * 1024)),
maxFileSizeMB(FTDCConfig::kMaxFileSizeBytesDefault / (1024 * 1024)),
maxSamplesPerArchiveMetricChunk(FTDCConfig::kMaxSamplesPerArchiveMetricChunkDefault),
maxSamplesPerInterimMetricChunk(FTDCConfig::kMaxSamplesPerInterimMetricChunkDefault) {}
};
extern FTDCStartupParams ftdcStartupParams;
/**
* Server Parameter callbacks
*/
Status onUpdateFTDCEnabled(const bool value);
Status onUpdateFTDCPeriod(const std::int32_t value);
Status onUpdateFTDCDirectorySize(const std::int32_t value);
Status onUpdateFTDCFileSize(const std::int32_t value);
Status onUpdateFTDCSamplesPerChunk(const std::int32_t value);
Status onUpdateFTDCPerInterimUpdate(const std::int32_t value);
/**
* Server Parameter accessors
*/
boost::filesystem::path getFTDCDirectoryPathParameter();
} // namespace mongo
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