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From "Ibragim Ismailov (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-9104) RegionChecker to track when regions go unavailable and back opened
Date Wed, 31 Jul 2013 20:25:49 GMT
Ibragim Ismailov created HBASE-9104:
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             Summary: RegionChecker to track when regions go unavailable and back opened
                 Key: HBASE-9104
                 URL: https://issues.apache.org/jira/browse/HBASE-9104
             Project: HBase
          Issue Type: New Feature
          Components: monitoring, Region Assignment, regionserver
            Reporter: Ibragim Ismailov


whenever region is closed/opened (due to region close, or regionserver restart/abort/kill,
regions reassigment, ...), we store this information in zookeeper to know availability ratio
of every region and whole cluster. So, RegionChecker class does that and provides methods
to get these ratios.

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