Do you still get problems if not using Spring ?
On 20 Feb 2010, at 07:12, Elliot Barlas wrote:
Was this issue ever resolved? I am seeing this as well with a large
number
of concurrent consumers. Same symptoms. Lost messages until broker
restart.
Thanks,
Elliot
chrajanirao wrote:
We are seeing issues with ActiveMQ 5.1 and 5.2 RC2 with message
dispatching from queues. It is easily reproducible even using the
out of
the box activemq configuration.
Send messages to the a queue (QueueA) using multiple threads (10 or
20
thread in a loop of 10) using JMeter or your custom code. Have the
consumer setup using spring DMLC (DefaultMessageListenerContainer)
or with
regular JMS API sync or async consumption with multiple consumers.
Consumer part can be configured using Camel to consumer from QueueA
and
put the messages in QueueB within ActiveMQ configuration as well.
After receiving some messages (the number is different each time),
the
consumers stop receiving any messages even though there are some
left on
the queue. Basically, the broker don't dispatch the messages and
they are
stuck until restart of the broker. Any new messages sent to the queue
after this are sometimes dispatched and other times they are stuck
too.
This certainly seems like a major bug in the dispatch mechanism. I
have
found below posts that state the exact problem.
http://www.nabble.com/Pending-Messages-are-shown-in-ActiveMQ-td20241332.html
http://www.nabble.com/Consumer-Listener-stop-receving-message-until-ActiveMQ-restart-td20355247.html
This is a very basic use case and I wonder how the version 5.1 is
currently used in production, if anyone is using at all.
We tried with prefetch limit as 1, asyncDispatch as true and false,
session transacted as true and false. In all cases, the dispatch
problem
still exists starting after 100 messages until 1000 messages.
I hope any of the active commiters looks into this issue seriously.
Would
really appreciate the help.
Thanks,
Rajani.
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