[jira] [Commented] (AMQ-4827) Set jms.queuePrefetch=1 Causes Messages To Be Stuck in Queue

["Timothy Bish (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/AMQ-4827?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13810309#comment-13810309 ] 

Timothy Bish commented on AMQ-4827:
-----------------------------------

Have you tried setting prefetch to zero to prevent cached consumers from holding a message in its prefetch buffer, that's the most common cause when people report stuck messages.  

> Set jms.queuePrefetch=1 Causes Messages To Be Stuck in Queue
> ------------------------------------------------------------
>
>                 Key: AMQ-4827
>                 URL: https://issues.apache.org/jira/browse/AMQ-4827
>             Project: ActiveMQ
>          Issue Type: Bug
>    Affects Versions: 5.7.0, 5.8.0
>            Reporter: Yung Lai
>
> Configuration:
> connectionUri=tcp://localhost:61616?jms.prefetchPolicy.queuePrefetch=1&keepAlive=true
> activemq.conf is default with no changes
> Scenario:
> Sent 7 different messages to the same queue. With prefetch=1 about 1 or 2 messages would get stuck in the queue everytime. After a restart of activemq the messages that were stuck in queue would be processed.
> With cachingConsumers=false the messages would not get stuck.
> We need cachingConsumers for better performance so setting it to false is not an option for us.
> Here is a thread that is very similar to the issue.
> http://activemq.2283324.n4.nabble.com/Messages-stuck-in-queue-td3244342.html
> Thank you for your time and consideration.



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