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https://issues.apache.org/jira/browse/HBASE-4742?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13144433#comment-13144433
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Phabricator commented on HBASE-4742:
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khemani has commented on the revision "[jira] [HBASE-4742] Split dead server's
log in parallel".
also, I think we should maintain the old single threaded behavior when
distributed log splitting is not enabled. (You might not have to make any
change becasue of splitLogLock in HMaster.splitLog() function ... but please
verify)
REVISION DETAIL
https://reviews.facebook.net/D237
> Split dead server's log in parallel
> -----------------------------------
>
> Key: HBASE-4742
> URL: https://issues.apache.org/jira/browse/HBASE-4742
> Project: HBase
> Issue Type: Improvement
> Reporter: Liyin Tang
> Assignee: Liyin Tang
> Attachments: D237.1.patch, D237.2.patch, D237.3.patch
>
>
> When one region server goes down, the master will shutdown the region server
> and split its log.
> However, splitting log is a blocking call and it would take some time.
> If more than one region server go down, the master will split its log one by
> one, which is not efficient.
> Since we have the distributed log split, we could split these logs from the
> dead servers in parallel.
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