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https://issues.apache.org/jira/browse/HBASE-5033?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13172770#comment-13172770
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Phabricator commented on HBASE-5033:
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Liyin has commented on the revision "[jira][HBASE-5033][[89-fb]]Opening/Closing
store in parallel to reduce region open/close time".
@stack, yes, as you said, tasks described by Callable can throw checked and
unchecked exceptions, and any code can throw an Error. Whatever the task code
may throw, it is wrapped in an ExecutionException and rethrown from Future.get.
REVISION DETAIL
https://reviews.facebook.net/D933
> Opening/Closing store in parallel to reduce region open/close time
> ------------------------------------------------------------------
>
> Key: HBASE-5033
> URL: https://issues.apache.org/jira/browse/HBASE-5033
> Project: HBase
> Issue Type: Improvement
> Reporter: Liyin Tang
> Assignee: Liyin Tang
> Attachments: D933.1.patch
>
>
> Region servers are opening/closing each store and each store file for every
> store in sequential fashion, which may cause inefficiency to open/close
> regions.
> So this diff is to open/close each store in parallel in order to reduce
> region open/close time. Also it would help to reduce the cluster restart time.
> 1) Opening each store in parallel
> 2) Loading each store file for every store in parallel
> 3) Closing each store in parallel
> 4) Closing each store file for every store in parallel.
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