Details
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Type:
Improvement
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Status: Closed
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Priority:
Major
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Resolution: Fixed
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Affects Version/s: 0.95.2
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Fix Version/s: 0.95.0
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Component/s: regionserver, scripts
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Labels:None
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Hadoop Flags:Reviewed
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Tags:0.96notable
Description
today, if the regions server crashes, its znode is not deleted in ZooKeeper. So the recovery process will stop only after a timeout, usually 30s.
By deleting the znode in start script, we remove this delay and the recovery starts immediately.
Attachments
Issue Links
- is required by
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HBASE-5843 Improve HBase MTTR - Mean Time To Recover
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- Closed
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- relates to
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HBASE-5075 regionserver crashed and failover
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- Resolved
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HBASE-5926 Delete the master znode after a master crash
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- Closed
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HBASE-7386 Investigate providing some supervisor support for znode deletion
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- Patch Available
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