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From "Brian Roach (JIRA)" <>
Subject [jira] Commented: (AMQCPP-220) Memory leak in activemq-cpp
Date Fri, 30 Jan 2009 21:01:01 GMT


Brian Roach commented on AMQCPP-220:

Yeah, that's what I get for trying to optimize the pool usage, sorry. 

My original change was to create and destroy a pool within the wait() call. I'll revert back
to that. Using the simpleConsumer example code (or our own) I never encountered the multiple
thread issue.

> Memory leak in activemq-cpp
> ---------------------------
>                 Key: AMQCPP-220
>                 URL:
>             Project: ActiveMQ C++ Client
>          Issue Type: Bug
>          Components: CMS Impl
>    Affects Versions: 2.2.3
>         Environment: Solaris 10 x86
> GCC (g++) 3.4.6 (from 
> APR 1.3.3
> APR-util 1.3.4
>            Reporter: Brian Roach
>            Assignee: Timothy Bish
>            Priority: Critical
>         Attachments: amq.patch
> The API leaks ~ 2MB of memory for every 1 million messages consumed.
> The example consumer in activemq-cpp-2.2.3-src/src/examples/consumers can be used as
a test bed, it exhibits the behavior.  
> It's even worse if you are not using the consumer->setMessageListener( ) method and
are instead directly using the consumer->receive() method in your own loop.  I dont' have
hard numbers but it is somewhere around ten-fold. 
> We have an application which is processing ~ 40 million messages per day, and will keep
growing until the box runs out of memory. 

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