GitHub user zsxwing opened a pull request:
https://github.com/apache/spark/pull/13718
[SPARK-16002][SQL]Sleep when no new data arrives to avoid 100% CPU usage
## What changes were proposed in this pull request?
Add a configuration to allow people to set a minimum polling delay when no
new data arrives (default is 10ms). This PR also cleans up some INFO logs.
## How was this patch tested?
Existing unit tests.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/zsxwing/spark SPARK-16002
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/13718.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 #13718
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commit f059d0ae0b6b384528a86af9985f39952d954f40
Author: Shixiong Zhu <[email protected]>
Date: 2016-06-16T20:17:15Z
Sleep when no new data arrives to avoid 100% CPU usage
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