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From "Jean-Daniel Cryans (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-3994) SplitTransaction has a window where clients can get RegionOfflineException
Date Thu, 16 Jun 2011 00:38:47 GMT
SplitTransaction has a window where clients can get RegionOfflineException
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                 Key: HBASE-3994
                 URL: https://issues.apache.org/jira/browse/HBASE-3994
             Project: HBase
          Issue Type: Bug
    Affects Versions: 0.90.3
            Reporter: Jean-Daniel Cryans
            Priority: Critical
             Fix For: 0.90.4


I just witnessed a job having failed tasks because of RegionOfflineException. This should
normally happen because the table is disabled, but this can also happen because the parent
is offline. Probably 99.999% of the time users don't hit it because SplitTransaction is able
to offline the parent and add the first daughter quickly enough, but in my case the cluster
was so slow that I was able to see.

Maybe we should check in HCM not only if the region is offline but also if it's split, in
which case we should retry?

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