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From "Michal Singer (JIRA)" <j...@apache.org>
Subject [jira] Commented: (AMQ-1626) Active MQ version 5.X - java 5 - memory leaks
Date Tue, 08 Apr 2008 04:56:33 GMT

    [ https://issues.apache.org/activemq/browse/AMQ-1626?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=42060#action_42060
] 

Michal Singer commented on AMQ-1626:
------------------------------------

I don't know. i use spring 2.0.8.

> Active MQ version 5.X - java 5 - memory leaks 
> ----------------------------------------------
>
>                 Key: AMQ-1626
>                 URL: https://issues.apache.org/activemq/browse/AMQ-1626
>             Project: ActiveMQ
>          Issue Type: Bug
>    Affects Versions: 5.0.0, 5.1.0
>            Reporter: Michal Singer
>            Assignee: Rob Davies
>            Priority: Blocker
>         Attachments: ClientExecuterController.java, JmsListener.java, JmsResponseSender.java
>
>
> when working with jdk1.5 and activemq 5.X. there are problems with memory leaks.
> I use an embedded broker configured in spring 2.0.8.
> I have a client application (producer ) and a server  (consumer) which inside it the
broker.
> The client uses PooledConnectionFactory, creates one connection, 2 sessions (receive
and send), and 1 producer. 
> the client connects to 2 queues defined in the broker (configured in spring), and sets
the "reply to" to a temporary queue.
> The server receives the messages from the client, does some processing, and returns a
reply on the temp q.
> each request is handled by a diiferent temp q. the temp q is deleted once the client
receives the responses.
> All resources are deleted on client side. the server is hanlded by spring. the server
responses on the temp queues.
> During run, i see a few problems (in jconsole)
> 1. memory of broker increases gradually and never released
> 2. memory of temp queues increases gradually and never released
> 3. advisory topic node is created with many objects under it - which seem like with the
same ids as some of the temp queue. they accumulate,
> and are never released.
> These leaks prevent me from working,. the activemq will stop working after a few hours
due to 100%memory consumption.
> There are also memory leaks concerning temp queues usage. 
> I tried creating one connection on client or using a pool of connections but nothing
helped. 
> It looks like some memory leak on the temp queues.
> Do you have a work around for these problems, when will there be fixes for these problems?

> If i will use a static queues, will all the leaks in the broker be solved? 
> If i create a new connection for each request process, should this solve the problem?
 (checked - does not work)
> I attached the client (producer) code and the server (consumer)

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