Allan Yang created HBASE-20867:
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Summary: RS may got killed while master restarts
Key: HBASE-20867
URL: https://issues.apache.org/jira/browse/HBASE-20867
Project: HBase
Issue Type: Bug
Affects Versions: 2.0.1, 3.0.0, 2.1.0
Reporter: Allan Yang
Assignee: Allan Yang
If the master is dispatching a RPC call to RS when aborting. A connection
exception may be thrown by the RPC layer(A IOException with "Connection closed"
message in this case). The
RSProcedureDispatcher will regard is as an un-retryable exception and pass it
to UnassignProcedue.remoteCallFailed, which will expire the RS.
Actually, the RS is very healthy, only the master is restarting.
I think we should deal with those kinds of connection exceptions in
RSProcedureDispatcher and retry the rpc call
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