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


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:
>             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] -

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