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From "Rishit Shroff (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-12753) Remove AbstractWAL from hbase-consensus
Date Wed, 24 Dec 2014 06:12:13 GMT

    [ https://issues.apache.org/jira/browse/HBASE-12753?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14258014#comment-14258014

Rishit Shroff commented on HBASE-12753:

The histograms removed from QuorumAgent were of no use or can be added back later?
bq. yes, or use any existing one from the current trunk.

You remove AbstractWAL but was this the only place it was used?
bq. well it was used in HBase codebase of our internal hydrabase branch. Since, we are not
merging those pieces directly (as those are not isolated) there is no other use of AbstractWAL
in the hbase-consensus module.


> Remove AbstractWAL from hbase-consensus
> ---------------------------------------
>                 Key: HBASE-12753
>                 URL: https://issues.apache.org/jira/browse/HBASE-12753
>             Project: HBase
>          Issue Type: Sub-task
>          Components: wal
>    Affects Versions: HBASE-12259
>            Reporter: Rishit Shroff
>            Assignee: Rishit Shroff
>            Priority: Minor
>             Fix For: HBASE-12259
>         Attachments: 0001-HBASE-12753-Get-rid-of-the-AbtractWAL.patch
> The HydraBase codebase abstracted out WAL into :
> 1) HBase WAL (HLog)
> 2) Quorum WAL
> In order to make the application independent, AbstractWAL was used to make it transparent
from HRegionServer perspective. 
> In the trunk, there is a similar interface WALProvider. Hence, removing the AbstractWAL
from the hbase-consensus code base.

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