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From Christopher Shannon <>
Subject Re: ActiveMQ cannot handle too many topic with redeliveryPlugin
Date Thu, 02 May 2019 10:39:02 GMT
20k messages and 30k topics is quite a bit so I'm not surprised the CPU
usage is very high.  The reason the CPU is high after stopping the
publishing is probably because you have a backlog on the broker that the
consumers need to work off.  You might also have a lot of messages being
processed for the DLQ.

If you think the issue is related specifically to the redelivery plugin
then your best bet is to hook up a profiler to the broker and to see where
the hot spot is that is using the most CPU in the plugin.  You can also
trying using a thread dump to figure it out.

On Thu, May 2, 2019 at 5:53 AM Franco Ng <> wrote:

> No problem, I can provide heap dump but the file size is over 1GB.  Please
> provide location /link to upload, thanks.
> --
> Sent from:

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