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From ironrooster <greens...@lowell.edu>
Subject Re: ActiveMQ-CPP: memory leak with persistent sendings?
Date Fri, 12 Mar 2010 02:44:23 GMT

Hi,
   I'm having a similar issue: using activeme-cpp 3.1.1, there is a large
memory leak when sending text messages.  Here's a code snippet:



Here's the setup in my run method:
{
        // Create a ConnectionFactory
        auto_ptr<ConnectionFactory> connectionFactory(
            ConnectionFactory::createCMSConnectionFactory( brokerURI ) );

        // Create a Connection
        connection = connectionFactory->createConnection();
        connection->start();

        // Create a Session
        session = connection->createSession( Session::AUTO_ACKNOWLEDGE );

        // Create the destination 
        destination = session->createTopic( topicName );

        // Create a MessageProducer from the Session to the Topic or Queue
        producer = session->createProducer( destination );
        producer->setDeliveryMode( DeliveryMode::NON_PERSISTENT );

		// Wait until the caller tells us we're done.
		doneLatch.await();
}



void Producer::sendMessage( const std::string& messageArg)
{
        TextMessage* message = session->createTextMessage( messageArg );
	producer->setTimeToLive( 10000 );
        producer->send( message );
        delete message;
} // End of sendMessage()


If I comment out the producer->send() line, no leak. Any help would be
appreciated!  Thanks.



Timothy Bish wrote:
> 
> On Fri, 2010-02-26 at 07:14 -0800, opernas wrote:
>> Version is 3.1.0
>> 
> Please give 3.1.1 a try as there were several fixes in that release for
> memory leaks.
> 
> Regards
> 
> 
>> 
>> Timothy Bish wrote:
>> > 
>> > On Fri, 2010-02-26 at 03:45 -0800, opernas wrote:
>> >> 
>> >> Like I said, this issue occurred with my app but in SimpleProducer.cpp
>> >> sample too. If you take SimpleProducer.cpp and put DeliverMode flag to
>> >> PERSISTENT (instead of NON_PERSISTENT).
>> >> 
>> >> ==3085== 160 bytes in 20 blocks are definitely lost in loss record 27
>> of
>> >> 40                                                                     
                                                              
>> >> ==3085==    at 0x40253C5: operator new(unsigned int)
>> >> (vg_replace_malloc.c:214)                                              
                                                                                  
>> >> ==3085==    by 0x4313A16:
>> >> activemq::core::ActiveMQSession::send(cms::Message*,
>> >> activemq::core::ActiveMQProducer*, activemq::util::Usage*)
>> (Pointer.h:45)                                                       
>> >> ==3085==    by 0x430843E:
>> >> activemq::core::ActiveMQProducer::send(cms::Destination const*,
>> >> cms::Message*, int, int, long long) (ActiveMQProducer.cpp:197)         
                                             
>> >> ==3085==    by 0x43065F6:
>> >> activemq::core::ActiveMQProducer::send(cms::Destination const*,
>> >> cms::Message*) (ActiveMQProducer.cpp:134)                              
                                             
>> >> ==3085==    by 0x43074FA:
>> >> activemq::core::ActiveMQProducer::send(cms::Message*)
>> >> (ActiveMQProducer.cpp:102)                                             
                                                       
>> >> ==3085==    by 0x8049F4D: SimpleProducer::run() (prueba.cpp:126)       
                                                                                         
                                             
>> >> ==3085==    by 0x804928A: main (prueba.cpp:227)
>> >> 
>> >> 
>> >> ==3085== LEAK SUMMARY:
>> >> ==3085==    definitely lost: 7,280 bytes in 40 blocks
>> >> ==3085==    indirectly lost: 10,406 bytes in 468 blocks
>> >> ==3085==      possibly lost: 784 bytes in 6 blocks
>> >> ==3085==    still reachable: 28 bytes in 1 blocks
>> >> ==3085==         suppressed: 0 bytes in 0 blocks
>> >> 
>> >> Is in the producer->send() call... but I dont know if I've some
>> mistake,
>> >> or
>> >> if a put PERSISTENT, i need to do something else... i've tried
>> different
>> >> ackwnoledge methods, but i've still loosing memory.
>> >> 
>> >> 
>> > 
>> > It would help to know the version of the client you are using.  The
>> most
>> > recent 3.1.1 release has several memory and resource leak fixes in it.
>> > 
>> > Regards
>> > 
>> > 
>> > -- 
>> > Tim Bish
>> > 
>> > Open Source Integration: http://fusesource.com
>> > ActiveMQ in Action: http://www.manning.com/snyder/
>> > 
>> > Follow me on Twitter: http://twitter.com/tabish121
>> > My Blog: http://timbish.blogspot.com/
>> > 
>> > 
>> > 
>> 
> 
> -- 
> Tim Bish
> 
> Open Source Integration: http://fusesource.com
> ActiveMQ in Action: http://www.manning.com/snyder/
> 
> Follow me on Twitter: http://twitter.com/tabish121
> My Blog: http://timbish.blogspot.com/
> 
> 
> 

-- 
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