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From "ramkrishna.s.vasudevan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-8610) Introduce interfaces to support MultiWAL
Date Wed, 29 May 2013 07:47:20 GMT

    [ https://issues.apache.org/jira/browse/HBASE-8610?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13669072#comment-13669072
] 

ramkrishna.s.vasudevan commented on HBASE-8610:
-----------------------------------------------

To start this off, what are the different scenarios for MultiWAL.  Some obvious ones are
WAL per table
WAL per group of regions(what type of group ) can be decided by the user
WAL per CF? ( I think this is difficult to implement wrt atomicity per row across CFs)
Any other use cases?  
The default case will be one WAL per RS and one for META.
                
> Introduce interfaces to support MultiWAL
> ----------------------------------------
>
>                 Key: HBASE-8610
>                 URL: https://issues.apache.org/jira/browse/HBASE-8610
>             Project: HBase
>          Issue Type: Improvement
>          Components: wal
>    Affects Versions: 0.98.0
>            Reporter: ramkrishna.s.vasudevan
>            Assignee: ramkrishna.s.vasudevan
>             Fix For: 0.98.0
>
>
> As the heading says this JIRA is specific to adding interfaces to support MultiWAL.

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