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https://issues.apache.org/jira/browse/HBASE-4357?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13117900#comment-13117900
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Ming Ma commented on HBASE-4357:
--------------------------------
How about the followings, similar to how OPENING is handled?
1. If closeRegion fails for some reason, RS will transition ZK state to a new
state ZK_FAILED_CLOSE. AM will reissue closeRegion request to the same RS right
away.
2. closeRegion operation could take a long time, doing flush, etc. It will do
tickClosing so AM's timeoutMonitor won't kick in.
3. When AM's timeoutMonitor kicks in, it will try to reissue closeRegion to the
same RS. However, if the RS stays in closing the region due to some bug, not
sure if reissuing closeRegion will help much. Instead, could Master restarts
the RS instead?
> Region in transition - in closing state
> ---------------------------------------
>
> Key: HBASE-4357
> URL: https://issues.apache.org/jira/browse/HBASE-4357
> Project: HBase
> Issue Type: Bug
> Reporter: Ming Ma
> Assignee: Ming Ma
>
> Got the following during testing,
> 1. On a given machine, kill "RS process id". Then kill "HMaster process id".
> 2. Start RS first via "bin/hbase-daemon.sh --config ./conf start
> regionserver.". Start HMaster via "bin/hbase-daemon.sh --config ./conf start
> master".
> One region of a table stayed in closing state.
> According to zookeeper,
> 794a6ff17a4de0dd0a19b984ba18eea9
> miweng_500region,H\xB49X\x10bM\xB1,1315338786464.794a6ff17a4de0dd0a19b984ba18eea9.
> state=CLOSING, ts=Wed Sep 07 17:21:44 PDT 2011 (75701s ago),
> server=sea-esxi-0,60000,1315428682281
> According to .META. table, the region has been assigned to from sea-esxi-0 to
> sea-esxi-4.
> miweng_500region,H\xB49X\x10bM\xB1,1315338786464.794a6ff17a4de0dd0a19b984ba18eea9.
> sea-esxi-4:60030 H\xB49X\x10bM\xB1 I7K\xC6\xA7\xEF\x9D\x90 0
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