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arangodb/arangosh/Benchmark/BenchmarkThread.h

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C++

////////////////////////////////////////////////////////////////////////////////
/// @brief benchmark thread
///
/// @file
///
/// DISCLAIMER
///
/// Copyright 2004-2013 triAGENS GmbH, Cologne, Germany
///
/// Licensed under the Apache License, Version 2.0 (the "License");
/// you may not use this file except in compliance with the License.
/// You may obtain a copy of the License at
///
/// http://www.apache.org/licenses/LICENSE-2.0
///
/// Unless required by applicable law or agreed to in writing, software
/// distributed under the License is distributed on an "AS IS" BASIS,
/// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
/// See the License for the specific language governing permissions and
/// limitations under the License.
///
/// Copyright holder is triAGENS GmbH, Cologne, Germany
///
/// @author Jan Steemann
/// @author Copyright 2012-2013, triAGENS GmbH, Cologne, Germany
////////////////////////////////////////////////////////////////////////////////
#ifndef TRIAGENS_BENCHMARK_BENCHMARK_THREAD_H
#define TRIAGENS_BENCHMARK_BENCHMARK_THREAD_H 1
#include "Basics/Common.h"
#include "BasicsC/hashes.h"
#include "Basics/ConditionLocker.h"
#include "Basics/ConditionVariable.h"
#include "Basics/Thread.h"
#include "BasicsC/logging.h"
#include "Rest/HttpResponse.h"
#include "SimpleHttpClient/SimpleHttpClient.h"
#include "SimpleHttpClient/GeneralClientConnection.h"
#include "Benchmark/BenchmarkCounter.h"
#include "Benchmark/BenchmarkOperation.h"
using namespace std;
using namespace triagens::basics;
using namespace triagens::httpclient;
using namespace triagens::rest;
namespace triagens {
namespace arangob {
// -----------------------------------------------------------------------------
// --SECTION-- class BenchmarkThread
// -----------------------------------------------------------------------------
// -----------------------------------------------------------------------------
// --SECTION-- constructors / destructors
// -----------------------------------------------------------------------------
////////////////////////////////////////////////////////////////////////////////
/// @addtogroup Threading
/// @{
////////////////////////////////////////////////////////////////////////////////
class BenchmarkThread : public Thread {
public:
////////////////////////////////////////////////////////////////////////////////
/// @brief construct the benchmark thread
////////////////////////////////////////////////////////////////////////////////
BenchmarkThread (BenchmarkOperation* operation,
ConditionVariable* condition,
void (*callback) (),
int threadNumber,
const unsigned long batchSize,
BenchmarkCounter<unsigned long>* operationsCounter,
Endpoint* endpoint,
const string& databaseName,
const string& username,
const string& password,
double requestTimeout,
double connectTimeout,
uint32_t sslProtocol,
bool keepAlive,
bool async)
: Thread("arangob"),
_operation(operation),
_startCondition(condition),
_callback(callback),
_threadNumber(threadNumber),
_batchSize(batchSize),
_warningCount(0),
_operationsCounter(operationsCounter),
_endpoint(endpoint),
_headers(),
_databaseName(databaseName),
_username(username),
_password(password),
_requestTimeout(requestTimeout),
_connectTimeout(connectTimeout),
_sslProtocol(sslProtocol),
_keepAlive(keepAlive),
_async(async),
_client(0),
_connection(0),
_offset(0),
_counter(0),
_time(0.0) {
_errorHeader = StringUtils::tolower(HttpResponse::getBatchErrorHeader());
}
////////////////////////////////////////////////////////////////////////////////
/// @brief destroy the benchmark thread
////////////////////////////////////////////////////////////////////////////////
~BenchmarkThread () {
if (_client != 0) {
delete _client;
}
if (_connection != 0) {
delete _connection;
}
}
////////////////////////////////////////////////////////////////////////////////
/// @}
////////////////////////////////////////////////////////////////////////////////
// -----------------------------------------------------------------------------
// --SECTION-- virtual protected methods
// -----------------------------------------------------------------------------
////////////////////////////////////////////////////////////////////////////////
/// @addtogroup Threading
/// @{
////////////////////////////////////////////////////////////////////////////////
protected:
////////////////////////////////////////////////////////////////////////////////
/// @brief the thread program
////////////////////////////////////////////////////////////////////////////////
virtual void run () {
_connection = GeneralClientConnection::factory(_endpoint, _requestTimeout, _connectTimeout, 3, _sslProtocol);
if (_connection == 0) {
LOG_FATAL_AND_EXIT("out of memory");
}
_client = new SimpleHttpClient(_connection, 10.0, true);
if (_client == 0) {
LOG_FATAL_AND_EXIT("out of memory");
}
_client->setLocationRewriter(this, &rewriteLocation);
_client->setUserNamePassword("/", _username, _password);
_client->setKeepAlive(_keepAlive);
// test the connection
SimpleHttpResult* result = _client->request(HttpRequest::HTTP_REQUEST_GET,
"/_api/version",
0,
0,
_headers);
if (! result || ! result->isComplete()) {
if (result) {
delete result;
}
LOG_FATAL_AND_EXIT("could not connect to server");
}
delete result;
// if we're the first thread, set up the test
if (_threadNumber == 0) {
if (! _operation->setUp(_client)) {
LOG_FATAL_AND_EXIT("could not set up the test");
}
}
if (_async) {
_headers["x-arango-async"] = "true";
}
_callback();
// wait for start condition to be broadcasted
{
ConditionLocker guard(_startCondition);
guard.wait();
}
while (1) {
unsigned long numOps = _operationsCounter->next(_batchSize);
if (numOps == 0) {
break;
}
if (_batchSize < 1) {
executeSingleRequest();
}
else {
executeBatchRequest(numOps);
}
}
}
////////////////////////////////////////////////////////////////////////////////
/// @}
////////////////////////////////////////////////////////////////////////////////
// -----------------------------------------------------------------------------
// --SECTION-- private methods
// -----------------------------------------------------------------------------
////////////////////////////////////////////////////////////////////////////////
/// @addtogroup Benchmark
/// @{
////////////////////////////////////////////////////////////////////////////////
private:
////////////////////////////////////////////////////////////////////////////////
/// @brief request location rewriter (injects database name)
////////////////////////////////////////////////////////////////////////////////
static string rewriteLocation (void* data, const string& location) {
BenchmarkThread* t = static_cast<BenchmarkThread*>(data);
assert(t != 0);
if (location.substr(0, 5) == "/_db/") {
// location already contains /_db/
return location;
}
if (location[0] == '/') {
return string("/_db/" + t->_databaseName + location);
}
else {
return string("/_db/" + t->_databaseName + "/" + location);
}
}
////////////////////////////////////////////////////////////////////////////////
/// @brief execute a batch request with numOperations parts
////////////////////////////////////////////////////////////////////////////////
void executeBatchRequest (const unsigned long numOperations) {
static const string boundary = "XXXarangob-benchmarkXXX";
StringBuffer batchPayload(TRI_UNKNOWN_MEM_ZONE);
for (unsigned long i = 0; i < numOperations; ++i) {
// append boundary
batchPayload.appendText("--" + boundary + "\r\n");
// append content-type, this will also begin the body
batchPayload.appendText("Content-Type: ", 14);
batchPayload.appendText(HttpRequest::getPartContentType());
batchPayload.appendText("\r\n\r\n", 4);
// everything else (i.e. part request header & body) will get into the body
const size_t threadCounter = _counter++;
const size_t globalCounter = _offset + threadCounter;
const string url = _operation->url(_threadNumber, threadCounter, globalCounter);
size_t payloadLength = 0;
bool mustFree = false;
const char* payload = _operation->payload(&payloadLength, _threadNumber, threadCounter, globalCounter, &mustFree);
const HttpRequest::HttpRequestType type = _operation->type(_threadNumber, threadCounter, globalCounter);
// headline, e.g. POST /... HTTP/1.1
HttpRequest::appendMethod(type, &batchPayload);
batchPayload.appendText(url + " HTTP/1.1\r\n");
batchPayload.appendText("\r\n", 2);
// body
batchPayload.appendText(payload, payloadLength);
batchPayload.appendText("\r\n", 2);
if (mustFree) {
TRI_Free(TRI_UNKNOWN_MEM_ZONE, (void*) payload);
}
}
// end of MIME
batchPayload.appendText("--" + boundary + "--\r\n");
_headers.erase("Content-Type");
_headers["Content-Type"] = HttpRequest::getMultipartContentType() +
"; boundary=" + boundary;
double start = TRI_microtime();
SimpleHttpResult* result = _client->request(HttpRequest::HTTP_REQUEST_POST,
"/_api/batch",
batchPayload.c_str(),
batchPayload.length(),
_headers);
_time += TRI_microtime() - start;
if (result == 0 || ! result->isComplete()) {
_operationsCounter->incFailures(numOperations);
if (result != 0) {
delete result;
}
_warningCount++;
if (_warningCount < MaxWarnings) {
LOG_WARNING("batch operation failed because server did not reply");
}
return;
}
if (result->wasHttpError()) {
_operationsCounter->incFailures(numOperations);
_warningCount++;
if (_warningCount < MaxWarnings) {
LOG_WARNING("batch operation failed with HTTP code %d", (int) result->getHttpReturnCode());
}
else if (_warningCount == MaxWarnings) {
LOG_WARNING("...more warnings...");
}
}
else {
const std::map<string, string>& headers = result->getHeaderFields();
map<string, string>::const_iterator it = headers.find(_errorHeader);
if (it != headers.end()) {
size_t errorCount = (size_t) StringUtils::uint32((*it).second);
if (errorCount > 0) {
_operationsCounter->incFailures(errorCount);
}
}
}
delete result;
}
////////////////////////////////////////////////////////////////////////////////
/// @brief execute a single request
////////////////////////////////////////////////////////////////////////////////
void executeSingleRequest () {
const size_t threadCounter = _counter++;
const size_t globalCounter = _offset + threadCounter;
const HttpRequest::HttpRequestType type = _operation->type(_threadNumber, threadCounter, globalCounter);
const string url = _operation->url(_threadNumber, threadCounter, globalCounter);
size_t payloadLength = 0;
bool mustFree = false;
// std::cout << "thread number #" << _threadNumber << ", threadCounter " << threadCounter << ", globalCounter " << globalCounter << "\n";
const char* payload = _operation->payload(&payloadLength, _threadNumber, threadCounter, globalCounter, &mustFree);
double start = TRI_microtime();
SimpleHttpResult* result = _client->request(type,
url,
payload,
payloadLength,
_headers);
_time += TRI_microtime() - start;
if (mustFree) {
TRI_Free(TRI_UNKNOWN_MEM_ZONE, (void*) payload);
}
if (result == 0 || ! result->isComplete()) {
_operationsCounter->incFailures(1);
if (result != 0) {
delete result;
}
_warningCount++;
if (_warningCount < MaxWarnings) {
LOG_WARNING("batch operation failed because server did not reply");
}
return;
}
if (result->wasHttpError()) {
_operationsCounter->incFailures(1);
_warningCount++;
if (_warningCount < MaxWarnings) {
LOG_WARNING("request for URL '%s' failed with HTTP code %d", url.c_str(), (int) result->getHttpReturnCode());
}
else if (_warningCount == MaxWarnings) {
LOG_WARNING("...more warnings...");
}
}
delete result;
}
////////////////////////////////////////////////////////////////////////////////
/// @}
////////////////////////////////////////////////////////////////////////////////
// -----------------------------------------------------------------------------
// --SECTION-- public methods
// -----------------------------------------------------------------------------
////////////////////////////////////////////////////////////////////////////////
/// @addtogroup Benchmark
/// @{
////////////////////////////////////////////////////////////////////////////////
public:
////////////////////////////////////////////////////////////////////////////////
/// @brief set the threads offset value
////////////////////////////////////////////////////////////////////////////////
void setOffset (size_t offset) {
_offset = offset;
}
////////////////////////////////////////////////////////////////////////////////
/// @brief return the total time accumulated by the thread
////////////////////////////////////////////////////////////////////////////////
double getTime () const {
return _time;
}
////////////////////////////////////////////////////////////////////////////////
/// @}
////////////////////////////////////////////////////////////////////////////////
// -----------------------------------------------------------------------------
// --SECTION-- private variables
// -----------------------------------------------------------------------------
////////////////////////////////////////////////////////////////////////////////
/// @addtogroup Benchmark
/// @{
////////////////////////////////////////////////////////////////////////////////
private:
////////////////////////////////////////////////////////////////////////////////
/// @brief the operation to benchmark
////////////////////////////////////////////////////////////////////////////////
BenchmarkOperation* _operation;
////////////////////////////////////////////////////////////////////////////////
/// @brief condition variable
////////////////////////////////////////////////////////////////////////////////
ConditionVariable* _startCondition;
////////////////////////////////////////////////////////////////////////////////
/// @brief start callback function
////////////////////////////////////////////////////////////////////////////////
void (*_callback) ();
////////////////////////////////////////////////////////////////////////////////
/// @brief our thread number
////////////////////////////////////////////////////////////////////////////////
int _threadNumber;
////////////////////////////////////////////////////////////////////////////////
/// @brief batch size
////////////////////////////////////////////////////////////////////////////////
const unsigned long _batchSize;
////////////////////////////////////////////////////////////////////////////////
/// @brief warning counter
////////////////////////////////////////////////////////////////////////////////
int _warningCount;
////////////////////////////////////////////////////////////////////////////////
/// @brief benchmark counter
////////////////////////////////////////////////////////////////////////////////
BenchmarkCounter<unsigned long>* _operationsCounter;
////////////////////////////////////////////////////////////////////////////////
/// @brief endpoint to use
////////////////////////////////////////////////////////////////////////////////
Endpoint* _endpoint;
////////////////////////////////////////////////////////////////////////////////
/// @brief extra request headers
////////////////////////////////////////////////////////////////////////////////
map<string, string> _headers;
////////////////////////////////////////////////////////////////////////////////
/// @brief database name
////////////////////////////////////////////////////////////////////////////////
const string _databaseName;
////////////////////////////////////////////////////////////////////////////////
/// @brief HTTP username
////////////////////////////////////////////////////////////////////////////////
const string _username;
////////////////////////////////////////////////////////////////////////////////
/// @brief HTTP password
////////////////////////////////////////////////////////////////////////////////
const string _password;
////////////////////////////////////////////////////////////////////////////////
/// @brief the request timeout (in s)
////////////////////////////////////////////////////////////////////////////////
double _requestTimeout;
////////////////////////////////////////////////////////////////////////////////
/// @brief the connection timeout (in s)
////////////////////////////////////////////////////////////////////////////////
double _connectTimeout;
////////////////////////////////////////////////////////////////////////////////
/// @brief ssl protocol
////////////////////////////////////////////////////////////////////////////////
uint32_t _sslProtocol;
////////////////////////////////////////////////////////////////////////////////
/// @brief use HTTP keep-alive
////////////////////////////////////////////////////////////////////////////////
bool _keepAlive;
////////////////////////////////////////////////////////////////////////////////
/// @brief send async requests
////////////////////////////////////////////////////////////////////////////////
bool _async;
////////////////////////////////////////////////////////////////////////////////
/// @brief underlying client
////////////////////////////////////////////////////////////////////////////////
triagens::httpclient::SimpleHttpClient* _client;
////////////////////////////////////////////////////////////////////////////////
/// @brief connection to the server
////////////////////////////////////////////////////////////////////////////////
triagens::httpclient::GeneralClientConnection* _connection;
////////////////////////////////////////////////////////////////////////////////
/// @brief thread offset value
////////////////////////////////////////////////////////////////////////////////
size_t _offset;
////////////////////////////////////////////////////////////////////////////////
/// @brief thread counter value
////////////////////////////////////////////////////////////////////////////////
size_t _counter;
////////////////////////////////////////////////////////////////////////////////
/// @brief time
////////////////////////////////////////////////////////////////////////////////
double _time;
////////////////////////////////////////////////////////////////////////////////
/// @brief lower-case error header we look for
////////////////////////////////////////////////////////////////////////////////
string _errorHeader;
////////////////////////////////////////////////////////////////////////////////
/// @brief maximum number of warnings to be displayed per thread
////////////////////////////////////////////////////////////////////////////////
static const int MaxWarnings = 5;
};
}
}
////////////////////////////////////////////////////////////////////////////////
/// @}
////////////////////////////////////////////////////////////////////////////////
#endif
// -----------------------------------------------------------------------------
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// -----------------------------------------------------------------------------
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