[jira] Closed: (QPID-623) If all consumers of a queue use selectors then the broker will leak memory

["Rob Godfrey (JIRA)" <qp...@incubator.apache.org>]

     [ https://issues.apache.org/jira/browse/QPID-623?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Rob Godfrey closed QPID-623.
----------------------------


> If all consumers of a queue use selectors then the broker will leak memory
> --------------------------------------------------------------------------
>
>                 Key: QPID-623
>                 URL: https://issues.apache.org/jira/browse/QPID-623
>             Project: Qpid
>          Issue Type: Bug
>          Components: Java Broker
>    Affects Versions: M2
>            Reporter: Martin Ritchie
>            Assignee: Martin Ritchie
>             Fix For: M2
>
>         Attachments: QPID-623-test.patch
>
>
> Because the main _messages queue still has a reference to the msgs incase a non selector consumer joins the AMQMessage object cannot be collected by GC. There is a log statement saying queue needs cleaning up. 
> A simple soution which will not necessarily solve the problem 100% is to purge the main queue from the head stopping when a non taken msgs is reached. Easy change to make but does allow taken msgs to back up behind. Problem is to process/purge those msgs will be harder as more locking will be required. This is somthing the reaper thread can do when implemented for full TTL (QPID-499).

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