GitHub user nezihyigitbasi opened a pull request:
https://github.com/apache/spark/pull/11865
[SPARK-14042][CORE] Add custom coalescer support [WIP]
## What changes were proposed in this pull request?
This is a work-in-progress PR (to gather feedback) about a new feature that
adds support for specifying a custom coalescer to the `coalesce()` method.
Currently I have only added this feature to the `RDD` interface, and once we
sort out the details we can proceed with adding this feature to the other APIs
(`Dataset` etc.)
## How was this patch tested?
Added a unit test for this functionality.
\cc @rxin (per our discussion on the mailing list)
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/nezihyigitbasi/spark custom_coalesce_policy
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/11865.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 #11865
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commit adc12e6ae144b7c33b7512a28bd88c99412ad683
Author: Nezih Yigitbasi <[email protected]>
Date: 2016-03-09T18:38:00Z
Add custom coalescer support
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