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From "stack (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-18649) Deprecate KV Usage in MR to move to Cells in 3.0
Date Tue, 26 Sep 2017 03:48:01 GMT

    [ https://issues.apache.org/jira/browse/HBASE-18649?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16180186#comment-16180186
] 

stack commented on HBASE-18649:
-------------------------------

bq. The branch-2 code will be made to work with MapReduceCell only and we can mark things
as incompatible change.

So, a MR job that is from branch-1 going against a branch-2 cluster will fail? I think that
violates our attempt at making it so a branch-1 client can work against a branch-2 cluster?
What you think [~ram_krish] Does MR have to be incompatible?

But it seems that this is case only for some types of custom MR jobs and that majority will
keep working? What you think?

> Deprecate KV Usage in MR to move to Cells in 3.0
> ------------------------------------------------
>
>                 Key: HBASE-18649
>                 URL: https://issues.apache.org/jira/browse/HBASE-18649
>             Project: HBase
>          Issue Type: Improvement
>          Components: mapreduce
>    Affects Versions: 2.0.0-alpha-2
>            Reporter: ramkrishna.s.vasudevan
>            Assignee: ramkrishna.s.vasudevan
>             Fix For: 2.0.0, 3.0.0, 2.1.0, 2.0.0-alpha-4
>
>         Attachments: HBASE-18649_branch-2.patch, HBASE-18649_master_2.patch, HBASE-18649_master_3.patch,
HBASE-18649_master_5.patch, HBASE-18649_master_6.patch, HBASE-18649_master.patch
>
>




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