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From "stack (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-8756) Add open regions for writes without waiting on log replay in current distributed log splitting scheme
Date Wed, 03 Jul 2013 04:26:20 GMT

    [ https://issues.apache.org/jira/browse/HBASE-8756?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13698583#comment-13698583
] 

stack commented on HBASE-8756:
------------------------------

[~aleksshulman] This is different.  This is enabling writes with our current WAL splitting
mechanism ("distributed log splitting" as opposed to "distributed log replay", the new mechanism).
                
> Add open regions for writes without waiting on log replay in current distributed log
splitting scheme
> -----------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-8756
>                 URL: https://issues.apache.org/jira/browse/HBASE-8756
>             Project: HBase
>          Issue Type: Improvement
>          Components: Performance
>            Reporter: stack
>             Fix For: 0.95.2
>
>
> distributed log replay would add opening regions to take writes before waiting on distributed
log replay to finish.
> We can add this facility to our current distributed log splitting mechanism too?
> Depends on HBASE-8741 or something like it so our sequenceids are good when the region
opens.

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