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From "james strachan (JIRA)" <>
Subject [jira] Resolved: (AMQ-735) Possible 4.0 consumer client memory leak?
Date Mon, 12 Jun 2006 08:19:51 GMT
     [ ]
james strachan resolved AMQ-735:

    Resolution: Cannot Reproduce
     Assign To: james strachan

I'm not yet convinced there is any memory leak. If you can find some leak we can always reopen
this issue. As I said on the mail list, to reduce RAM overhead try use optimizeAcknowledge=false
and reduce the prefetch value.

> Possible 4.0 consumer client memory leak?
> -----------------------------------------
>          Key: AMQ-735
>          URL:
>      Project: ActiveMQ
>         Type: Bug

>   Components: JMS client
>     Versions: 4.0
>  Environment: windows xp pro, jdk 1.5, AMQ 4.0 (incubator)
>     Reporter: Karthik Sethuraman
>     Assignee: james strachan
>     Priority: Critical
>      Fix For: 4.0.1
>  Attachments:,,
> On running the attached test programs (one producer on a topic, one consumer on a topic),
the consumer eventually encounters OutOfMemoryError after receiving around 64 MB of messages).
Default JVM heap size is used (64 MB).
> The problem does not happen with RC2 build.
>  The test programs allows specification of message payloads of different sizes and different
message rates, as well number of  producer/consumer threads/instances., topics and topic connection
factories, via user environment variables.

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