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/**
* Copyright (C) 2018 MongoDB Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* 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
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* 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 GNU Affero General 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.
*/
#define MONGO_LOG_DEFAULT_COMPONENT ::mongo::logger::LogComponent::kDefault
#include "mongo/platform/basic.h"
#include <boost/filesystem.hpp>
#include "mongo/base/init.h"
#include "mongo/db/dbdirectclient.h"
#include "mongo/db/service_context.h"
#include "mongo/embedded/embedded.h"
#include "mongo/embedded/embedded_options.h"
#include "mongo/embedded/embedded_options_helpers.h"
#include "mongo/scripting/bson_template_evaluator.h"
#include "mongo/shell/bench.h"
#include "mongo/tools/mongoebench_options.h"
#include "mongo/util/exit.h"
#include "mongo/util/log.h"
#include "mongo/util/options_parser/option_section.h"
#include "mongo/util/signal_handlers.h"
#include "mongo/util/text.h"
namespace mongo {
namespace {
/**
* DBDirectClientWithOwnOpCtx is a version of DBDirectClient that owns its own OperationContext.
*
* Since benchRun originally existed only in the mongo shell and was used with only
* DBClientConnections, there isn't a part of the BenchRunConfig or BenchRunWorker interfaces that
* is aware of having an OperationContext. In particular, the mongo shell lacks a ServiceContext and
* therefore also lacks the rest of the Client and OperationContext hierarchy. We shove an
* OperationContext onto the DBDirectClient to work around this limitation for mongoebench to work.
*/
class DBDirectClientWithOwnOpCtx : public DBDirectClient {
public:
DBDirectClientWithOwnOpCtx() : DBDirectClient(nullptr) {
Client::initThreadIfNotAlready();
_opCtx = cc().makeOperationContext();
setOpCtx(_opCtx.get());
}
private:
ServiceContext::UniqueOperationContext _opCtx;
};
MONGO_INITIALIZER_WITH_PREREQUISITES(SignalProcessingStartup, ("ThreadNameInitializer"))
(InitializerContext*) {
// Make sure we call this as soon as possible but before any other threads are started. Before
// embedded::initialize is too early and after is too late. So instead we hook in during the
// global initialization at the right place.
startSignalProcessingThread();
return Status::OK();
}
int mongoeBenchMain(int argc, char* argv[], char** envp) {
ServiceContext* serviceContext = nullptr;
registerShutdownTask([&]() {
if (serviceContext) {
embedded::shutdown(serviceContext);
}
});
setupSignalHandlers();
log() << "MongoDB embedded benchRun application, for testing purposes only";
try {
optionenvironment::OptionSection startupOptions("Options");
uassertStatusOK(embedded::addOptions(&startupOptions));
uassertStatusOK(addMongoeBenchOptions(&startupOptions));
uassertStatusOK(
embedded_integration_helpers::parseCommandLineOptions(argc, argv, startupOptions));
serviceContext = embedded::initialize(nullptr);
} catch (const std::exception& ex) {
error() << ex.what();
return EXIT_BADOPTIONS;
}
// If a "pre" section was present in the benchRun config file, then we run its operations once
// before running the operations from the "ops" section.
if (mongoeBenchGlobalParams.preConfig) {
auto conn = mongoeBenchGlobalParams.preConfig->createConnection();
boost::optional<LogicalSessionIdToClient> lsid;
PseudoRandom rng(mongoeBenchGlobalParams.preConfig->randomSeed);
BsonTemplateEvaluator bsonTemplateEvaluator(mongoeBenchGlobalParams.preConfig->randomSeed);
BenchRunStats stats;
BenchRunOp::State state(&rng, &bsonTemplateEvaluator, &stats);
for (auto&& op : mongoeBenchGlobalParams.preConfig->ops) {
op.executeOnce(conn.get(), lsid, *mongoeBenchGlobalParams.preConfig, &state);
}
}
// If an "ops" section was present in the benchRun config file, then we repeatedly run its
// operations across the configured number of threads for the configured number of seconds.
if (mongoeBenchGlobalParams.opsConfig) {
const double seconds = mongoeBenchGlobalParams.opsConfig->seconds;
auto runner = std::make_unique<BenchRunner>(mongoeBenchGlobalParams.opsConfig.release());
runner->start();
sleepmillis(static_cast<long long>(seconds * 1000));
BSONObj stats = BenchRunner::finish(runner.release());
log() << "writing stats to " << mongoeBenchGlobalParams.outputFile.string() << ": "
<< stats;
boost::filesystem::ofstream outfile(mongoeBenchGlobalParams.outputFile);
outfile << stats.jsonString() << '\n';
}
shutdown(EXIT_CLEAN);
}
} // namespace
MONGO_REGISTER_SHIM(BenchRunConfig::createConnectionImpl)
(const BenchRunConfig& config)->std::unique_ptr<DBClientBase> {
return std::unique_ptr<DBClientBase>(new DBDirectClientWithOwnOpCtx());
}
} // namespace mongo
#if defined(_WIN32)
// In Windows, wmain() is an alternate entry point for main(), and receives the same parameters as
// main() but encoded in Windows Unicode (UTF-16); "wide" 16-bit wchar_t characters. The
// WindowsCommandLine object converts these wide character strings to a UTF-8 coded equivalent and
// makes them available through the argv() and envp() members. This enables mongoeBenchMain() to
// process UTF-8 encoded arguments and environment variables without regard to platform.
int wmain(int argc, wchar_t* argvW[], wchar_t* envpW[]) {
mongo::WindowsCommandLine wcl(argc, argvW, envpW);
return mongo::mongoeBenchMain(argc, wcl.argv(), wcl.envp());
}
#else
int main(int argc, char* argv[], char** envp) {
return mongo::mongoeBenchMain(argc, argv, envp);
}
#endif
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