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From "Anoop Sam John (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-7835) Implementation of the log splitting without creating intermediate files
Date Mon, 18 Mar 2013 05:16:16 GMT

    [ https://issues.apache.org/jira/browse/HBASE-7835?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13604876#comment-13604876

Anoop Sam John commented on HBASE-7835:

Nice work with the MTTR area. 
One quick question. So here you are doing a server to server call using the normal HTable
APIs. Do we need a framework kind of thing within the RS for doing any RS-RS call?  During
this time, client will also try using the handlers at this RS for their ops.
I was thinking on this area. We have different JIRAs now related to HLOG and its split and
This one + HBASE-6772 + multi WAL...
Can we think on all together. 
For multi WAL if we have a fixed set of regions for one WAL approach, during one RS down Master
can assign those regions(Try max) to another one RS [Region groups in RS]. If the corresponding
HLog file also assigned to that RS, then for the replay it can directly do puts on the region
rather than IPC.
I am just telling my thoughts around not saying these are within the scope of this issue :)

> Implementation of the log splitting without creating intermediate files 
> ------------------------------------------------------------------------
>                 Key: HBASE-7835
>                 URL: https://issues.apache.org/jira/browse/HBASE-7835
>             Project: HBase
>          Issue Type: Sub-task
>          Components: regionserver
>            Reporter: Jeffrey Zhong
>            Assignee: Jeffrey Zhong
>             Fix For: 0.95.0
>         Attachments: hbase-7006_12.patch, hbase-7006_1.patch, hbase-7006_2.patch, hbase-7006_3.patch,
hbase-7006_3.patch, hbase-7006_6.patch, hbase-7006_8.patch
> The sub task is to check in a separate patch for major implementation for the proposal.

> More checkins will include a new "replay" command and more metrics support.
> Thanks,
> -Jeffrey 

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