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From "Timothy Bish (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (AMQ-5732) Changing message selector leads to blocking message
Date Mon, 20 Apr 2015 16:16:58 GMT

    [ https://issues.apache.org/jira/browse/AMQ-5732?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14503108#comment-14503108
] 

Timothy Bish commented on AMQ-5732:
-----------------------------------

How deep is the Queue when you do this?  You could be seeing a case where the depth is larger
than the maxPageSize setting which would prevent those older messages from paging in which
could cause the stall you see.  

> Changing message selector leads to blocking message
> ---------------------------------------------------
>
>                 Key: AMQ-5732
>                 URL: https://issues.apache.org/jira/browse/AMQ-5732
>             Project: ActiveMQ
>          Issue Type: Bug
>          Components: Broker, JMS client
>    Affects Versions: 5.11.1
>         Environment: Suse Linux 11 sp2
>            Reporter: Cadmean
>              Labels: features
>
> The problem is:
> 1. I create a queue in activemq broker (version 5.11.1) and some message with string
property, for example "filename".
> 2. Use a client to consume the message with message selector "filename='123.tar'" with
consumer.receive(),it works.  After it receive the message, it acks the message and send the
same message back to the broker and commit the session. (client_acknowledge). 
> 3. Use the same client, change the message selector to "filename='456.tar'" with consumer.receive(),
the consumer is blocked. 
> 4. restart the broker and consumer "filename='456.tar'" again, it successfully receive
the message, but if i change the selector back to "filename='123.tar'", it blocked again.
> At first I thought that there might be some rules for message dispatching. However, with
ActiveMQ version 5.10.0, the problem is gone.



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