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From "Nick Dimiduk (JIRA)" <>
Subject [jira] [Updated] (HIVE-6584) Add HiveHBaseTableSnapshotInputFormat
Date Mon, 21 Jul 2014 21:12:39 GMT


Nick Dimiduk updated HIVE-6584:

    Attachment: HIVE-6584.10.patch

Updated the patch once more. This has been tested on a distributed cluster as well, things
are working correctly.

HADOOP_CLASSPATH=/path/to/high-scale-lib-1.1.1.jar hive -e "set;
select count(*) from foo;"

Optionally you can specify {{hive.hbase.snapshot.restoredir}} to something other than the

I also opened HBASE-11555 so we can do away with the reflection stuff after a later release.

> 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-6584.2.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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