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From "Rob Davies (JIRA)" <j...@apache.org>
Subject [jira] Assigned: (AMQ-1503) OutOfMemoryError in ActiveMQ message broker when attempting to publish 2 Million messages - one publisher and four durable subscribes
Date Tue, 11 Dec 2007 11:17:26 GMT

     [ https://issues.apache.org/activemq/browse/AMQ-1503?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Rob Davies reassigned AMQ-1503:
-------------------------------

    Assignee: Rob Davies

> OutOfMemoryError in ActiveMQ message broker when attempting to publish 2 Million messages
- one publisher and four durable subscribes
> -------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: AMQ-1503
>                 URL: https://issues.apache.org/activemq/browse/AMQ-1503
>             Project: ActiveMQ
>          Issue Type: Bug
>          Components: Broker
>    Affects Versions: 4.1.1
>            Reporter: Noah Zucker
>            Assignee: Rob Davies
>
> (reference original posting on Nabble: http://www.nabble.com/forum/ViewPost.jtp?post=12798657)
> We have a one topic publisher that is attempting to publish 2 million messages with 4
durable subscribers.  Things go fine until we hit 1.7 million messages - then we get an OutOfMemoryError.

> ActiveMQ is setup to use 5 x 20M log  files, and Derby JDBC persistence.  We use the
JVM memory settings -Xmx1024M and <usageManager id="memory-manager" limit="512 MB"/>
> At the time of the out of memory, one of the log file is gone crazy and it's size is
415M. The Derby size is big as well.
> We are using session client acknowledgment.  and prefetch size of 1 (we need to serialize
message consumption).
> each message is being acknowledged using javax.jms.Message.acknowledge();
> Did not find anything on how to change checkpoint interval for persistence.

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