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From "Nicolas Spiegelberg (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HBASE-3223) Get VersionInfo for Running HBase Process
Date Wed, 29 Dec 2010 22:25:45 GMT

    [ https://issues.apache.org/jira/browse/HBASE-3223?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12975936#action_12975936
] 

Nicolas Spiegelberg commented on HBASE-3223:
--------------------------------------------

I agree with the idea that you need easy setup & access to information.  I think, however,
that people will mainly care about the running process version when they actually have a cluster
up, working, and being upgraded to fix perceived shortcomings in the system.  If you have
a working cluster and you don't already have some monitoring tools setup (hopefully, with
some tool that can read JMX), God help that admin.  He needs more visibility than just the
version number.

> Get VersionInfo for Running HBase Process
> -----------------------------------------
>
>                 Key: HBASE-3223
>                 URL: https://issues.apache.org/jira/browse/HBASE-3223
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Nicolas Spiegelberg
>            Assignee: Nicolas Spiegelberg
>             Fix For: 0.90.1
>
>         Attachments: HBASE-3223-fix.patch
>
>
> bin/hbase VersionInfo is a great existing utility to provide version info about Hbase
jar files.  Unfortunately, there is no way to currently get this information for the running
process.  For this jira, add an easy/quick way to see verify the rev of the running jar.
> We got recently bit internally because our running jar was a different version from the
jar that we had recently pushed and caused havoc on our cluster.  This problem is more important
to fix now that we have rolling upgrades and will regularly have cluster scenarios with mixed-version
RSs.

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