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From "Lars Hofhansl (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-12988) [Replication]Parallel apply edits across regions
Date Fri, 03 Jul 2015 18:53:05 GMT

    [ https://issues.apache.org/jira/browse/HBASE-12988?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14613401#comment-14613401
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Lars Hofhansl commented on HBASE-12988:
---------------------------------------

Thanks [~apurtell]. Absolutely yes on the constant and hbase-defaults.xml.

Not sure I follow the part with the DEBUG message. Future.get() will rethrow any error it
encounters and then the outer catch will process those in the same way we do now.
So in effect the error handling is unchanged. The only difference is when multiple tasks encounter
an exception we only remember the last one... Is that part what you meant? I wanted to give
the other tasks a chance to run and then only reschedule those that actually did encounter
an error.


> [Replication]Parallel apply edits across regions
> ------------------------------------------------
>
>                 Key: HBASE-12988
>                 URL: https://issues.apache.org/jira/browse/HBASE-12988
>             Project: HBase
>          Issue Type: Improvement
>          Components: Replication
>            Reporter: hongyu bi
>            Assignee: Lars Hofhansl
>         Attachments: 12988-v2.txt, 12988-v3.txt, 12988-v4.txt, 12988.txt, HBASE-12988-0.98.patch,
ParallelReplication-v2.txt
>
>
> we can apply  edits to slave cluster in parallel on table-level to speed up replication
.
> update : per conversation blow , it's better to apply edits on row-level in parallel



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