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From Gary Tully <>
Subject Re: ActiveMQ JDBC Storage Slow down
Date Wed, 03 Aug 2011 08:53:08 GMT
thinking a bit more, the simplest explanation is that you are reaching
your memory usage limits and pending messages are no longer cached in
memory. As a result, dispatch now needs to read from the store which
will be slower.
Do you notice an increase in queue depth before the slowdown?

post your xml configuration, that will  help diagnose.

On 3 August 2011 09:09, James Black <> wrote:
> Hi,
> no there are no slow advisory messages in the logs.  We used to receive
> these when using the topic and it would block our producers that added to
> the topic, but we have not seen this since we changed to a virtual topic.
> I'll try and arrange to capture some stack traces, the help is appreciated
> :>
> Thanks,
> Justin
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