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https://issues.apache.org/jira/browse/HBASE-20867?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16545187#comment-16545187
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Duo Zhang commented on HBASE-20867:
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Will we be stuck there for ever when master shutdown? The reason we close the
connection when shutdown master is that we want the operations against the
connection fail quickly and give up immediately.
The patch LGTM. Above is the only concern for me.
Thanks.
> RS may got killed while master restarts
> ---------------------------------------
>
> Key: HBASE-20867
> URL: https://issues.apache.org/jira/browse/HBASE-20867
> Project: HBase
> Issue Type: Sub-task
> Affects Versions: 3.0.0, 2.1.0, 2.0.1
> Reporter: Allan Yang
> Assignee: Allan Yang
> Priority: Major
> Attachments: HBASE-20867.branch-2.0.001.patch,
> HBASE-20867.branch-2.0.002.patch, HBASE-20867.branch-2.0.003.patch
>
>
> 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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