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From "Micah Whitacre (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CRUNCH-478) Support TableSnapshotInputFormat
Date Mon, 20 Oct 2014 02:45:33 GMT

    [ https://issues.apache.org/jira/browse/CRUNCH-478?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14176547#comment-14176547
] 

Micah Whitacre commented on CRUNCH-478:
---------------------------------------

I have a bit of the work done for this but need to finish it up and add some tests.  Will
hopefully get a patch posted this week.

> Support TableSnapshotInputFormat
> --------------------------------
>
>                 Key: CRUNCH-478
>                 URL: https://issues.apache.org/jira/browse/CRUNCH-478
>             Project: Crunch
>          Issue Type: Improvement
>          Components: IO
>            Reporter: Micah Whitacre
>            Assignee: Micah Whitacre
>
> With HBase 0.98, HBase now supports MR over HBase snapshots instead of active tables.[1]
 This looks to have significant performance impacts.   One thing that will be different about
this sort of I/O is that we will probably not have "target" support but instead only Source.
 HBase snapshots do a lot with how the files are stored/tracked such that it wouldn't really
make sense to support generating a snapshot.
> [1] - https://issues.apache.org/jira/browse/HBASE-8369



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