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From deepak_a <>
Subject Re: Query around ActiveMQ.DLQ
Date Fri, 10 May 2013 16:17:08 GMT
Not sure why consumers are blocked. Are they acking? 


No, they are not acking at all, they seem to be blocked.
I ran 2 sets of tests.
For both tests following is the route set up

            <from uri="file:/opt/share/EventFileInput?move=.event-done"/>
            <setHeader headerName="messageType">
            <to uri="jms:queue:queue.incomingEvents"/>

Test1 <without setting producerWindowSize>:

In this test, I notice that producer/consumer stalls. I also see that the
route attempted to deliver the file to JMS Queue and it got stalled (I can
see a lock still held on the file in my disk)

Test2 <with producerWindowSize>

In this test I notice that consumer is definitely stalled. But I see that
messages have been removed from the disk, i.e. looks like Producer has
attempted to publish the messages to the Queue (but no evidence of messages
in the Queue) - but the looks like broker has properly acked.

So I see 2 issues here

1. Why was consumer blocked
2. What happened to the messages (that broker acked) - I have checked the
DLQ - its not there either.

Christian - would it help if I send my camel broker-config.xml,
applicationContext, routes.xml for you to take a look at?


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