Feng Honghua created HBASE-8357:
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Summary: current region server failover mechanism for replication
can lead to stale region server whose left hlogs can't be replicated by other
region server
Key: HBASE-8357
URL: https://issues.apache.org/jira/browse/HBASE-8357
Project: HBase
Issue Type: Bug
Components: Replication
Affects Versions: 0.94.3
Reporter: Feng Honghua
consider this scenario: rs A/B/C, A dies, B and C race to lock A to help
replicate A's left unreplicated hlogs, B wins and successfully creates lock
under A's znode, but before B copies A's hlog queues to its own znode, B also
dies, and C successfully creates lock under B's znode and helps replicate B's
own left hlogs. But A's left hlogs can't be replicated by any other rs since B
left back a lock under A's znode and B didn't transfer A's hlog queues to its
own znode before B dies.
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