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https://issues.apache.org/jira/browse/MAPREDUCE-1362?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14535933#comment-14535933
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Allen Wittenauer commented on MAPREDUCE-1362:
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I ran a local test-patch.sh which reports the build fails with this patch in
place. We'll wait for the official one, but I expect this patch needs some
work for modern trunk.
> Pipes should be ported to the new mapreduce API
> -----------------------------------------------
>
> Key: MAPREDUCE-1362
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-1362
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: pipes
> Reporter: Bassam Tabbara
> Labels: BB2015-05-TBR
> Attachments: MAPREDUCE-1362-trunk.patch, MAPREDUCE-1362.patch,
> MAPREDUCE-1362.patch
>
>
> Pipes is still currently using the old mapred API. This prevents us from
> using pipes with HBase's TableInputFormat, HRegionPartitioner, etc.
> Here is a rough proposal for how to accomplish this:
> * Add a new package org.apache.hadoop.mapreduce.pipes that uses the new
> mapred API.
> * the new pipes package will run side by side with the old one. old one
> should get deprecated at some point.
> * the wire protocol used between PipesMapper and PipesReducer and C++
> programs must not change.
> * bin/hadoop should support both pipes (old api) and pipes2 (new api)
> Does this sound reasonable?
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