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From "Brandon Williams (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-5508) Expose whether jna is enabled and memory is locked via JMX
Date Wed, 01 May 2013 12:18:16 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-5508?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13646526#comment-13646526
] 

Brandon Williams commented on CASSANDRA-5508:
---------------------------------------------

We can probably keep a boolean or two somewhere for this, but it's not clear to me where a
good place is since almost nothing is initialized at that point in time.
                
> Expose whether jna is enabled and memory is locked via JMX
> ----------------------------------------------------------
>
>                 Key: CASSANDRA-5508
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-5508
>             Project: Cassandra
>          Issue Type: Wish
>            Reporter: Jeremy Hanna
>            Priority: Trivial
>
> This may not be possible, but it would be very useful.  Currently the only definitive
way to determine whether JNA is enabled and that it's able to lock the memory it needs is
to look at the startup log.
> It would be great if there was a way to store whether it is enabled so that jmx (or nodetool)
could easily tell if JNA was enabled and whether it was able to lock the memory.

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