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https://issues.apache.org/jira/browse/AMQ-3301?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Rob Davies resolved AMQ-3301.
-----------------------------
Resolution: Fixed
Fix Version/s: 5.6.0
Assignee: Rob Davies
Patch applied in SVN revision 1326252
> LockFile in-jvm check is not thread-safe
> ----------------------------------------
>
> Key: AMQ-3301
> URL: https://issues.apache.org/jira/browse/AMQ-3301
> Project: ActiveMQ
> Issue Type: Bug
> Components: Broker
> Affects Versions: 5.4.2
> Reporter: Arthur Naseef
> Assignee: Rob Davies
> Priority: Minor
> Fix For: 5.6.0
>
> Attachments: amq-3301.patch
>
>
> kahadb/src/main/java/org/apache/kahadb/util/LockFile.java adds in-JVM locking
> to Channel.tryLock() using system properties. However, there is time between
> the read-and-check for an existing lock and setting a new lock.
> I found this problem while running multiple brokers in a single JVM for
> diagnostic purposes with two brokers using a shared directory to simlute a
> production H/A environment.
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