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https://issues.apache.org/jira/browse/HBASE-7824?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13624740#comment-13624740
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chunhui shen commented on HBASE-7824:
-------------------------------------

bq.Since ZK session timeout take a while, HMaster#splitLogAndExpireIfOnline 
will kick in so there won't be any issue.
1.ZK seession will timeout once java process exit.
2.I think in a complex network we shouldn't assert that ZK session timeout 
happen after HMaster#splitLogAndExpireIfOnline. e.g. the return of 
getMetaLocationOrReadLocationFromRoot is hanged for a little time.

bq.are you fine with this adjustment?
Sorry, why do this adjustment?


In addition, is it only for 0.94, no trunk?  If trunk only, I think there is no 
above trouble since ROOT has dropped in trunk

                
> Improve master start up time when there is log splitting work
> -------------------------------------------------------------
>
>                 Key: HBASE-7824
>                 URL: https://issues.apache.org/jira/browse/HBASE-7824
>             Project: HBase
>          Issue Type: Bug
>          Components: master
>            Reporter: Jeffrey Zhong
>            Assignee: Jeffrey Zhong
>             Fix For: 0.94.8
>
>         Attachments: hbase-7824.patch, hbase-7824_v2.patch, 
> hbase-7824_v3.patch, hbase-7824-v7.patch, hbase-7824-v8.patch
>
>
> When there is log split work going on, master start up waits till all log 
> split work completes even though the log split has nothing to do with meta 
> region servers.
> It's a bad behavior considering a master node can run when log split is 
> happening while its start up is blocking by log split work. 
> Since master is kind of single point of failure, we should start it ASAP.

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