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https://issues.apache.org/jira/browse/HBASE-3996?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13208814#comment-13208814
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Zhihong Yu commented on HBASE-3996:
-----------------------------------
I couldn't apply the patch against TRUNK:
{code}
zhihyu$ p0 MultiTableInputFormat.patch
patching file src/main/java/org/apache/hadoop/hbase/mapreduce/TableSplit.java
patch: **** malformed patch at line 217: @@ -179,18 +219,21 @@
{code}
@Evan:
Can you combine the patch and test ?
Thanks
> Support multiple tables and scanners as input to the mapper in map/reduce jobs
> ------------------------------------------------------------------------------
>
> Key: HBASE-3996
> URL: https://issues.apache.org/jira/browse/HBASE-3996
> Project: HBase
> Issue Type: Improvement
> Components: mapreduce
> Reporter: Eran Kutner
> Fix For: 0.94.0
>
> Attachments: MultiTableInputFormat.patch,
> TestMultiTableInputFormat.java.patch
>
>
> It seems that in many cases feeding data from multiple tables or multiple
> scanners on a single table can save a lot of time when running map/reduce
> jobs.
> I propose a new MultiTableInputFormat class that would allow doing this.
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