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From "Marshall Schor (JIRA)" <uima-...@incubator.apache.org>
Subject [jira] Commented: (UIMA-927) Provide a way to drain Dead Letter Queue
Date Thu, 08 Apr 2010 13:12:36 GMT

    [ https://issues.apache.org/jira/browse/UIMA-927?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12854923#action_12854923
] 

Marshall Schor commented on UIMA-927:
-------------------------------------

Jerry - do we need to update some documentation about this, somewhere?

> Provide a way to drain Dead Letter Queue 
> -----------------------------------------
>
>                 Key: UIMA-927
>                 URL: https://issues.apache.org/jira/browse/UIMA-927
>             Project: UIMA
>          Issue Type: Improvement
>          Components: Async Scaleout
>    Affects Versions: 2.3AS
>            Reporter: Jerry Cwiklik
>            Priority: Minor
>
> ActiveMQ currently doesnt evict expried messages from the Dead Letter Queue. This can
potentially lead to Out Of Memory situation as by default the broker keeps all messages in
memory. One possible strategy is to modify ActiveMQ broker configuration to spool messages
from the DLQ to disk when memory is tight. Other strategy may involve creating a custom DLQ
Consumer to drain messages.

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