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From "Lars Hvile (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (AMQ-2870) Messages that don't match a message selector for a durable subscription are stored causing the persistent store to eventually fill up
Date Tue, 02 Oct 2012 10:09:07 GMT

    [ https://issues.apache.org/jira/browse/AMQ-2870?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13467600#comment-13467600
] 

Lars Hvile commented on AMQ-2870:
---------------------------------

This error still exists when using the JDBC store.. 

2012-10-02 11:55:57,299 | TRACE | ignoring unmatched selector ack for: ID:java-dev-image-37369-1349171756956-0:1:1:1:1,
cleanup will get to this message after subsequent acks. | org.apache.activemq.store.jdbc.JDBCTopicMessageStore
| ActiveMQ Transport: tcp:///127.0.0.1:34884

The cleanup will of course never get to this message, as no messages are acked ever..

This exclusion of unmatched selectors happens at
https://fisheye6.atlassian.com/browse/activemq/trunk/activemq-core/src/main/java/org/apache/activemq/store/jdbc/JDBCTopicMessageStore.java?r=1345202#to73

It was introduced as a fix to some other bugs in https://fisheye6.atlassian.com/changelog/activemq?cs=1025939
                
> Messages that don't match a message selector for a durable subscription are stored causing
the persistent store to eventually fill up
> -------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: AMQ-2870
>                 URL: https://issues.apache.org/jira/browse/AMQ-2870
>             Project: ActiveMQ
>          Issue Type: Bug
>          Components: Broker
>    Affects Versions: 5.3.2
>            Reporter: Gary Tully
>            Assignee: Gary Tully
>             Fix For: 5.4.1
>
>
> With a durable sub, ack entries are created on a message send for each durable sub, but
if the durable sub does not match the message due to a selector, the message remains unacked,
pending, such that is can fill up the store. Any unmatched message should be acked immediately.

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