Duo Zhang created HBASE-19633:
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Summary: Clean up the replication queues in the
postPeerModification stage when removing a peer
Key: HBASE-19633
URL: https://issues.apache.org/jira/browse/HBASE-19633
Project: HBase
Issue Type: Sub-task
Reporter: Duo Zhang
In the previous implementation, we can not always cleanly remove all the
replication queues when removing a peer since the removing work is done by RS
and if an RS is crashed then some queues may left there forever. That's why we
need to check if there are already some queues for a newly created peer since
we may reuse the peer id and causes problem.
With the new procedure based replication peer modification, I think we can do
it cleanly. After the RefreshPeerProcedures are done on all RSes, we can make
sure that no RS will create queue for this peer again, then we can iterate over
all the queues for all Rses and do another round of clean up.
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