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https://issues.apache.org/jira/browse/HBASE-9104?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andrew Kyle Purtell resolved HBASE-9104.
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Resolution: Incomplete
> 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
> Priority: Major
> Original Estimate: 672h
> Remaining Estimate: 672h
>
> 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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