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From Petr Nídl (JIRA) <>
Subject [jira] [Commented] (AMQ-4075) More transparent KahaDB file lock switch
Date Tue, 22 Jan 2013 07:40:13 GMT


Petr Nídl commented on AMQ-4075:

It seems that this issue was (accidentally or on purpose) resolved in version 5.7.0 by descending from
This wasn't present in reported version 5.6.0 but in version 5.7.0 it already works. Maybe
resolution and fix version should change. But most of all, I'm happy that this configuration
is possible. Thank you.
> More transparent KahaDB file lock switch
> ----------------------------------------
>                 Key: AMQ-4075
>                 URL:
>             Project: ActiveMQ
>          Issue Type: Improvement
>          Components: Message Store
>    Affects Versions: 5.6.0
>            Reporter: Petr Nídl
>            Priority: Minor
>             Fix For: 5.8.0
>         Attachments: AMQ4075Patch.txt
> Would it be possible to change the way in which KahaDB file locking can be disabled?
Currently this can be accomplished by setting 'java.nio.channels.FileLock.broken' system property.
But system property settings can influence other parts of the system where this behavior is
not desirable. This especially apply for enterprise systems where ActiveMQ is embedded in
the application and therefore shares the same JVM.

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