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List:       activemq-dev
Subject:    [jira] Updated: (AMQ-2716) ActiveMQConnection leaks memory by
From:       "TH L. (JIRA)" <jira () apache ! org>
Date:       2010-04-29 14:53:31
Message-ID: 25133705.7991272552811984.JavaMail.jira () thor
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     [ https://issues.apache.org/activemq/browse/AMQ-2716?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel \
]

TH L. updated AMQ-2716:
-----------------------

    Priority: Major  (was: Minor)

> ActiveMQConnection leaks memory by caching ActiveMQTempQueue objects
> --------------------------------------------------------------------
> 
> Key: AMQ-2716
> URL: https://issues.apache.org/activemq/browse/AMQ-2716
> Project: ActiveMQ
> Issue Type: Improvement
> Components: Broker, Geronimo Integration, JMS client, Transport
> Affects Versions: 5.3.0
> Environment: 64bit, SuSE 11, Sun Java 1.6.0_17, Geronimo 2.2, embedded AMQ 5.3, TCP \
>                 Tranport
> Reporter: TH L.
> 
> After running messaging several hours with more than 2,000,000 asynchronous send \
> and more than1,000,000 synchronous send/reply (with temp Queue), I found about 1.5G \
> ActiveMQConnection objects in my whole 2G memory heap (inspected with jmap and \
> Eclipse Memory Analyzer). The 1.5G ActiveMQConnection objects and their referencing \
> objects stay in heap old generation and cannot be cleaned by GC. By looking into \
> those ActiveMQConnections, I found there are a huge amount of HashMaps holding temp \
> Queue information (e.g. ActiveMQTempQueue with different sequenceId, physicalName, \
> etc.) Since the ActiveMQConnections are pooled, however, why those \
> ActiveMQTempQueues are always kept in ActiveMQConnections? is that a bug? or did I \
> do something wrong (wrong setup, wrong client code)? My client code
> {{{
> QueueConnection connection = null;
> QueueSession session = null;
> Queue requestQueue = null;
> Queue replyQueue = null;
> QueueReceiver receiver = null;
> QueueSender sender = null;
> try {
> connection = aConnFactory.createQueueConnection();
> connection.start();
> session = connection.createQueueSession(false, Session.AUTO_ACKNOWLEDGE);
> requestQueue = getDestinationQueue();
> sender = session.createSender(requestQueue);
> replyQueue = session.createTemporaryQueue(); // using temp queue
> aRequestMessage.setJMSReplyTo(replyQueue);
> sender.send(aRequestMessage, DeliveryMode.NON_PERSISTENT, Message.DEFAULT_PRIORITY, \
> timeToLive); receiver = session.createReceiver(replyQueue);
> receiver.receive();
> } catch (Exception e) {
> ...
> } finally {
> try { receiver.close(); } catch (Exception ignored) {}
> try { sender.close(); } catch (Exception ignored) {}
> try { session.close(); } catch (Exception ignored) {}
> try { connection.close(); } catch (Exception ignored) {}            
> }
> }}}

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