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From "Ming Ma (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-4357) Region in transition - in closing state
Date Fri, 06 Jan 2012 06:27:39 GMT

     [ https://issues.apache.org/jira/browse/HBASE-4357?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Ming Ma updated HBASE-4357:
---------------------------

    Attachment: HBASE-4357-0.92.patch

How about the followings?

1. Have Master pass the ZK node version to RS closeRegion call. Add a new method for that.
2. RS CloseRegionHandler no longer needs to call getCurrentVersion. It uses the passed in
version for consistence check.

For other error situations in CloseRegionHandler, it seems either it should be taken care
of by the current system, or it isn't unclear how the sytem could run into that situation.

The patch ia attached.
                
> 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
>         Attachments: HBASE-4357-0.92.patch
>
>
> 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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