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From "Gary Tully (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (AMQ-2366) File leak in KahaDB file lock - slave exhausts OS fd limit
Date Wed, 26 Aug 2009 15:19:50 GMT

     [ https://issues.apache.org/activemq/browse/AMQ-2366?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Gary Tully resolved AMQ-2366.
-----------------------------

    Resolution: Fixed

fix applied to r808041

> File leak in KahaDB file lock - slave exhausts OS fd limit
> ----------------------------------------------------------
>
>                 Key: AMQ-2366
>                 URL: https://issues.apache.org/activemq/browse/AMQ-2366
>             Project: ActiveMQ
>          Issue Type: Bug
>          Components: Message Store
>    Affects Versions: 5.3.0
>            Reporter: Gary Tully
>            Assignee: Gary Tully
>             Fix For: 5.3.0
>
>
> If I follow the logs, the slave brokers emit this message for a while:
>  
> Database /opt/fusemq/data/dev-broker1/kahadb/lock is locked... waiting 10 seconds for
the database to be unlocked. Reason: java.io.IOException: File '/opt/fusemq/data/dev-broker1/kahadb/lock'
could
> not be locked.
>  
> Then, it switches to
>  
> Database /opt/fusemq/data/dev-broker1/kahadb/lock is locked... waiting 10 seconds for
the database to be unlocked. Reason: java.io.FileNotFoundException: /opt/fusemq/data/dev-broker1/kahadb/lock
(Too many open files)
> lsof shows loads of fds allocated to the slave broker.

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