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https://issues.apache.org/jira/browse/HBASE-5179?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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chunhui shen updated HBASE-5179:
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Attachment: hbase-5179v5.patch
In patch v5, I add javadoc to explain getDeadServersBeingProcessed() and
getDeadServers.
And also add some more in DeadServer about deadServersBeingProcessed.
About Stack's comment that a server is in either inProgress or its in the
deadServers list?
I think a server could both in processingDeadServers list and deadServers list.
DeadServers list only store one instance for one regionserver, but
processingDeadServers list may store multi instances for one regionserver with
several startcode
> Concurrent processing of processFaileOver and ServerShutdownHandler may
> cause region is assigned before completing split log, it would cause data loss
> -------------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: HBASE-5179
> URL: https://issues.apache.org/jira/browse/HBASE-5179
> Project: HBase
> Issue Type: Bug
> Components: master
> Affects Versions: 0.90.2
> Reporter: chunhui shen
> Assignee: chunhui shen
> Attachments: 5179-90.txt, 5179-v2.txt, 5179-v3.txt, 5179-v4.txt,
> hbase-5179.patch, hbase-5179v5.patch
>
>
> If master's processing its failover and ServerShutdownHandler's processing
> happen concurrently, it may appear following case.
> 1.master completed splitLogAfterStartup()
> 2.RegionserverA restarts, and ServerShutdownHandler is processing.
> 3.master starts to rebuildUserRegions, and RegionserverA is considered as
> dead server.
> 4.master starts to assign regions of RegionserverA because it is a dead
> server by step3.
> However, when doing step4(assigning region), ServerShutdownHandler may be
> doing split log, Therefore, it may cause data loss.
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