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https://issues.apache.org/jira/browse/AMQ-5732?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14503308#comment-14503308
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clebert suconic commented on AMQ-5732:
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[~Cadmean] it looks like you are using the messaging provider as a database 
where you are storing and retrieving data.. (storing file=X, Y and Z.. and 
later reading for the file you want). This is the kind of thing a database is a 
better fit than a message system IMHO.


If you were always having a consumer active for your entire dataset you 
shouldn't have an issue with paging...


This has been the case for any messaging system I have worked with.


This issue should be closed unless you provide a working testcase that shows 
this as an issue.. you start an empty server. Send a few messages and consume 
them accordingly showing the message blocked without paging.

> 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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