[jboss-jira] [JBoss JIRA] Commented: (JBMESSAGING-1245) Message delivery freezes with default values of prefetchSize and slowConsumers

[Tim Fox (JIRA)]

    [ http://jira.jboss.com/jira/browse/JBMESSAGING-1245?page=comments#action_12402351 ] 
            
Tim Fox commented on JBMESSAGING-1245:
--------------------------------------

Progress so far:

I have created a simple test program which sends 20000 non persistent messages in a burst, then consumes them all, and closes and creates a new consumer every 20 messages, with prefetchSize set to 15.

With a small Thread.sleep as above this test locks up very quickly.

With the fixed code I have left it running overnight, and so far have have processed around 25 million messages with no problems. I will leave it running further, but it looks good so far.

> Message delivery freezes with default values of prefetchSize and slowConsumers
> ------------------------------------------------------------------------------
>
>                 Key: JBMESSAGING-1245
>                 URL: http://jira.jboss.com/jira/browse/JBMESSAGING-1245
>             Project: JBoss Messaging
>          Issue Type: Bug
>            Reporter: Tim Fox
>         Assigned To: Tim Fox
>            Priority: Critical
>             Fix For: 1.4.0.SP3.CP02, 1.4.1.beta2
>
>
> Message delivery seems to freeze under some circumstances with default values of prefetchSize and slowConsumers.
> Increasing the prefetchSize to 1000 seems to workaround the problem.
> Waiting on customer to provide instructions for replication.

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