GitHub user srowen opened a pull request:
https://github.com/apache/spark/pull/14260
[SPARK-16613] [CORE] RDD.pipe returns values for empty partitions
## What changes were proposed in this pull request?
Document RDD.pipe semantics; don't execute process for empty input
partitions.
Note this includes the fix in https://github.com/apache/spark/pull/14256
because it's necessary to even test this. One or the other will merge the fix.
## How was this patch tested?
Jenkins tests including new test.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/srowen/spark SPARK-16613
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/14260.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #14260
----
commit 62692afc0f50531a7d00c679939b47b0e5f56e67
Author: Sean Owen <so...@cloudera.com>
Date: 2016-07-19T10:47:02Z
Document RDD.pipe semantics; don't execute process for empty input partition
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