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From "stack (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-6285) HBase master should log INFO message when it attempts to assign a region
Date Mon, 02 Jul 2012 14:27:30 GMT

     [ https://issues.apache.org/jira/browse/HBASE-6285?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

stack updated HBASE-6285:
-------------------------

      Resolution: Fixed
    Hadoop Flags: Reviewed
          Status: Resolved  (was: Patch Available)

Committed to trunk.  Thanks for the patch Aditya.
                
> HBase master should log INFO message when it attempts to assign a region
> ------------------------------------------------------------------------
>
>                 Key: HBASE-6285
>                 URL: https://issues.apache.org/jira/browse/HBASE-6285
>             Project: HBase
>          Issue Type: Bug
>          Components: master
>    Affects Versions: 0.94.0
>            Reporter: Aditya Kishore
>            Assignee: Aditya Kishore
>            Priority: Minor
>             Fix For: 0.96.0
>
>         Attachments: HBASE-6285_trunk.patch
>
>
> With the default logging level (INFO), it is very difficult to diagnose a large HBase
cluster that is having problems assigning regions because the HBase master logs a DEBUG message
when it instructs a region-server to assign a region.
> You actually have to crawl EVERY HBase region-server log to find out which node received
the request for a particular region. Further, lets say the HBase master sends the request
and something goes wrong, we might not even get a message in the region-server log.

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