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From "Nick Dimiduk (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-11137) Add mapred.TableSnapshotInputFormat
Date Fri, 16 May 2014 10:38:25 GMT

    [ https://issues.apache.org/jira/browse/HBASE-11137?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13998881#comment-13998881

Nick Dimiduk commented on HBASE-11137:

bq. Forwarding my +1 from RB.

Thanks [~enis]. Replied on RB as well (I'm not receiving notification email for some reason).

In addition, I'll s/TableSnapshotInputFormatBase/TableSnapshotInputFormatImpl/ so use as a
delegate (instead of a base-class) isn't confused. 

bq. Did you figure out how Hive does filter pushdown without scan support in mapred?

Yes, I looked into that. Hive works around the lack of feature by consuming our internal API,
mapreduce.TableInputFormatBase. I opened HBASE-11163 and HIVE-7058 to get them back onto our
public APIs on all fronts.

> Add mapred.TableSnapshotInputFormat
> -----------------------------------
>                 Key: HBASE-11137
>                 URL: https://issues.apache.org/jira/browse/HBASE-11137
>             Project: HBase
>          Issue Type: Improvement
>          Components: mapreduce, Performance
>    Affects Versions: 0.98.0, 0.96.2
>            Reporter: Nick Dimiduk
>            Assignee: Nick Dimiduk
>             Fix For: 0.99.0, 0.98.3
>         Attachments: HBASE-11137.00-0.98.patch, HBASE-11137.00.patch, HBASE-11137.01.patch,
HBASE-11137.01_rerun.patch, HBASE-11137.02-0.98.patch, HBASE-11137.02.patch
> We should have feature parity between mapreduce and mapred implementations. This is important
for Hive.

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