GitHub user zero323 opened a pull request:
https://github.com/apache/spark/pull/18052
[SPARK-20347][PYSPARK][WIP] Provide AsyncRDDActions in Python
## What changes were proposed in this pull request?
Adds asynchronous RDD actions (`collectAsync`, `countAsync`,
`foreach(Partition)Async` and `takeAsync`) using `concurrent.futures` with
`ThreadPoolExecutor`.
In Python < 3.2 it requires a backported [`futures`
package](https://pypi.python.org/pypi/futures) installed on the driver.
## How was this patch tested?
Unit tests.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/zero323/spark SPARK-20347
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/18052.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 #18052
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commit 72bd097896aca042944d8e20282617e4864d9dd0
Author: zero323 <zero...@users.noreply.github.com>
Date: 2017-05-21T21:08:09Z
Initial commit
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