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From "Ted Yu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-10000) Initiate lease recovery for outstanding WAL files at the very beginning of recovery
Date Thu, 12 Dec 2013 00:24:07 GMT

    [ https://issues.apache.org/jira/browse/HBASE-10000?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13845898#comment-13845898
] 

Ted Yu commented on HBASE-10000:
--------------------------------

bq. Woud suggest trying to break this feature
The change, minus passing of timestamp of first lease recovery request, isn't that big.
Do you have suggestion as to how this can be broken up ?

> Initiate lease recovery for outstanding WAL files at the very beginning of recovery
> -----------------------------------------------------------------------------------
>
>                 Key: HBASE-10000
>                 URL: https://issues.apache.org/jira/browse/HBASE-10000
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Ted Yu
>            Assignee: Ted Yu
>             Fix For: 0.98.1
>
>         Attachments: 10000-0.96-v5.txt, 10000-0.96-v6.txt, 10000-recover-ts-with-pb-2.txt,
10000-recover-ts-with-pb-3.txt, 10000-recover-ts-with-pb-4.txt, 10000-recover-ts-with-pb-5.txt,
10000-recover-ts-with-pb-6.txt, 10000-recover-ts-with-pb-7.txt, 10000-recover-ts-with-pb-8.txt,
10000-recover-ts-with-pb-8.txt, 10000-v4.txt, 10000-v5.txt, 10000-v6.txt
>
>
> At the beginning of recovery, master can send lease recovery requests concurrently for
outstanding WAL files using a thread pool.
> Each split worker would first check whether the WAL file it processes is closed.
> Thanks to Nicolas Liochon and Jeffery discussion with whom gave rise to this idea. 



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