GitHub user robbinspg opened a pull request:
https://github.com/apache/spark/pull/13355
Use a minimum of 3 dispatcher threads to avoid deadlocks
## What changes were proposed in this pull request?
Set minimum number of dispatcher threads to 3 to avoid deadlocks on
machines with only 2 cores
## How was this patch tested?
Spark test builds
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/robbinspg/spark-1 SPARK-13906
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/13355.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 #13355
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commit 139e87558d728c5ae4ccf297c1702a73d5573335
Author: Pete Robbins <robbin...@gmail.com>
Date: 2016-05-27T09:32:49Z
Use a minimum of 3 dispatcher threads to avoid deadlocks
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