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From sravan <>
Subject Re: Messages are stuck in ActiveMQ 5.11 and delivered for after more than 24 hours
Date Tue, 11 Jul 2017 22:10:49 GMT
Unfortunately we are in a predicament where we have issues in reproducing the
problem in performance test environments as well as debugging. ActiveMQ INFO
logs does not contain much information to understand what's going on. When
we turn on DEBUG logging (in lower env) ActiveMQ is hanging just in few
minutes and never comes back. So far the only one clue we are relying on is,
while monitoring ActiveMQ consoles in our prod environment, we observed
messages stuck on network bridge for multiple hours. Also in our research,
we know that consumers are doing fine and the main issue is with ActiveMQ
which is delivering messages very late and we simply don't know the root
cause. When we worked with an ActiveMQ consultant a year ago, we were
advised to scale ActiveMQs  vertically  rather than scaling them
horizontally. i.e. Have 2 larger AMQ nodes rather than having 4 smaller
nodes in a cluster. We were told that this avoids many potential anomalies
with network brdige and shipping messages across the nodes etc...Does anyone
here have any suggestions with respect to how else we could debug or fix our
issue. Again just to refresh your minds, the main issue we’ve been
struggling with is...Our AMQs are delivering messages extremely late,
sometimes a day or even two days later. We do not see any JMS exceptions,
and no exceptions or issues at consumer's end. Any inputs are greatly

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