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https://issues.apache.org/jira/browse/AMQ-4694?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13751658#comment-13751658
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Carl Harris commented on AMQ-4694:
----------------------------------

I have modified my local copy of the POM to use 4.0.0 and am building and 
testing now.  I'll soon update the patch so that it references the later 
version and amends NOTICES.txt as you describe.
                
> add support for flock-based shared lock file (patch included)
> -------------------------------------------------------------
>
>                 Key: AMQ-4694
>                 URL: https://issues.apache.org/jira/browse/AMQ-4694
>             Project: ActiveMQ
>          Issue Type: Improvement
>          Components: Broker
>    Affects Versions: 5.8.0
>            Reporter: Carl Harris
>         Attachments: patch.txt, README.patch.txt
>
>
> This issue provides a patch to add support for using native flock (2) based 
> lock files.  As discussed in AMQ-4378, using the Shared File System 
> Master/Slave configuration on an OCFS2 filesystem is complicated by Java's 
> use of POSIX locks.  See the attached README for motivation and description 
> of the approach.
> With this patch, a user can configure KahaDB to use a shared native lock file 
> (using flock) as follows:
> {code:xml}
> <persistenceAdapter>
>   <kahaDB ...>
>     <locker>
>        <shared-native-file-locker/>
>     </locker>
>   </kahaDB>
> </persistenceAdapter>
> {code}

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