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https://issues.apache.org/jira/browse/HBASE-20490?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16452952#comment-16452952
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Sean Busbey commented on HBASE-20490:
-------------------------------------

also these will be easier to parse on the command line if you do one per line 
instead of comma separated

> Add main to UnsafeAvailChecker so can test for Unsafe
> -----------------------------------------------------
>
>                 Key: HBASE-20490
>                 URL: https://issues.apache.org/jira/browse/HBASE-20490
>             Project: HBase
>          Issue Type: Bug
>          Components: Operability
>            Reporter: stack
>            Priority: Major
>         Attachments: HBASE-20490.branch-2.0.001.patch
>
>
> Was wondering if we were doing unsafe. We have tooling to check for presence 
> but would be useful if could run check from command-line AND if we logged 
> when NOT present....  If not present, perf will be poor.



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