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From Nitesh <mehta.nit...@yahoo.co.in>
Subject Small number of messages stuck in full mesh failover
Date Mon, 18 Nov 2013 17:30:13 GMT
I am using ActiveMQ  5.8.0. I am having mesh of brokers with 4 broker
instances (broker configuration is attached) with JDBC persistence.  All 4
brokers are configured in same way.
I am attaching 3 listeners to each queue and each listener takes around
400ms to process the message
I am pushing message after every 20ms.
First I bring up all 4 brokers and attaché listeners to queues on all the
nodes. Once setup is up, I start producer threads. I can see messages are
being consumed properly and are shared between nodes.
No I do failover as follows:
 First I bring down broker 1 (First I shut down producers and consumers and
then broker).
Then I start it again (First I start broker, then consumers and producers)
I repeat same steps for all brokers
Now when all brokers are up after failover, I stop all the producers and
wait for pending messages to be consumed.
In the end I am left with few messages stuck (randomly on any node, 4 to 5
messages) in database table which are not delivered. These messages are not
delivered even after waiting for long time. I tried to access queues using
JMX and few message browsing tools, but no success.
Once I restart broker on which these messages was stuck, they got delivered
Is there something wrong with my setup or I am getting same problem as
described in
https://issues.jboss.org/browse/ENTMQ-444
If Yes, Is similar issue raised with ActiveMQ?
Is there any workaround? 
 




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