GitHub user andrewor14 opened a pull request:
https://github.com/apache/spark/pull/4409
[SPARK-5636] Ramp up faster in dynamic allocation
A recent patch #4051 made the initial number default to 0. Any Spark
application using dynamic allocation's default settings will ramp up very
slowly. Since we never request more executors than needed to saturate the
pending tasks, it is safe to ramp up quickly. The current default of 60 may be
too slow.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/andrewor14/spark dynamic-allocation-interval
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/4409.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 #4409
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commit d3cc485a62be3959171fd876856b5807f68ea1db
Author: Andrew Or <[email protected]>
Date: 2015-02-05T23:50:01Z
Lower request interval
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