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https://issues.apache.org/jira/browse/HBASE-5571?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13230003#comment-13230003
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chunhui shen commented on HBASE-5571:
-------------------------------------
In our testing with 90 version, close region rpc return NSRE rather than a
remote exception if region is already been closed, so that table will be
diabling all the time.
Maybe calling unassign(rs.getRegion()) in the nodeDeleted() will affect zk
event.
What about define a new state for RegionState.state which will retry closing if
return NSRE.
> Table will be disabling forever
> -------------------------------
>
> Key: HBASE-5571
> URL: https://issues.apache.org/jira/browse/HBASE-5571
> Project: HBase
> Issue Type: Bug
> Components: master, regionserver
> Reporter: chunhui shen
> Assignee: chunhui shen
> Attachments: BASE-5571v2.patch, HBASE-5571.patch
>
>
> If we restart master when it is disabling one table, the table will be
> disabling forever.
> In current logic, Region CLOSE RPC will always returned
> NotServingRegionException because RS has already closed the region before we
> restart master. So table will be disabling forever because the region will in
> RIT all along.
> In another case, when AssignmentManager#rebuildUserRegions(), it will put
> parent regions to AssignmentManager.regions, so we can't close these parent
> regions until it is purged by CatalogJanitor if we execute disabling the
> table.
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