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From "Nick Dimiduk (JIRA)" <>
Subject [jira] [Commented] (HIVE-6584) Add HiveHBaseTableSnapshotInputFormat
Date Mon, 28 Jul 2014 15:57:39 GMT


Nick Dimiduk commented on HIVE-6584:

Thanks for having a look, [~navis]. As it is, this patch requires HBASE-11137, which has not
been pack-ported to 0.96. There's no technical reason not to back-port it, simply that 0.96
is in maintenance mode only and we're encouraging folks to upgrade from 0.96.2 to 0.98.x.

> Add HiveHBaseTableSnapshotInputFormat
> -------------------------------------
>                 Key: HIVE-6584
>                 URL:
>             Project: Hive
>          Issue Type: Improvement
>          Components: HBase Handler
>            Reporter: Nick Dimiduk
>            Assignee: Nick Dimiduk
>             Fix For: 0.14.0
>         Attachments: HIVE-6584.0.patch, HIVE-6584.1.patch, HIVE-6584.10.patch, HIVE-6584.11.patch,
HIVE-6584.12.patch, HIVE-6584.2.patch, HIVE-6584.3.patch, HIVE-6584.4.patch, HIVE-6584.5.patch,
HIVE-6584.6.patch, HIVE-6584.7.patch, HIVE-6584.8.patch, HIVE-6584.9.patch
> HBASE-8369 provided mapreduce support for reading from HBase table snapsopts. This allows
a MR job to consume a stable, read-only view of an HBase table directly off of HDFS. Bypassing
the online region server API provides a nice performance boost for the full scan. HBASE-10642
is backporting that feature to 0.94/0.96 and also adding a {{mapred}} implementation. Once
that's available, we should add an input format. A follow-on patch could work out how to integrate
this functionality into the StorageHandler, similar to how HIVE-6473 integrates the HFileOutputFormat
into existing table definitions.

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