GitHub user redsanket opened a pull request:
https://github.com/apache/spark/pull/22628
Change the spark.shuffle.server.chunkFetchHandlerThreadsPercent default to
100
## What changes were proposed in this pull request?
We want to change the default percentage to 100 for
spark.shuffle.server.chunkFetchHandlerThreadsPercent. The reason being
currently this is set to 0. Which means currently if server.ioThreads > 0,
the default number of threads would be 2 * #cores instead of server.io.Threads.
We want the default to server.io.Threads in case this is not set at all. Also
here a default of 0 would also mean 2 * #cores
## How was this patch tested?
Manual
(Please explain how this patch was tested. E.g. unit tests, integration
tests, manual tests)
(If this patch involves UI changes, please attach a screenshot; otherwise,
remove this)
Please review http://spark.apache.org/contributing.html before opening a
pull request.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/redsanket/spark SPARK-25641
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/22628.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 #22628
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commit 0258d197e27e6a053023d1b49955343659e240ac
Author: Sanket Chintapalli <chintapalli.sanketreddy@...>
Date: 2018-10-04T14:34:29Z
Change the spark.shuffle.server.chunkFetchHandlerThreadsPercent default to
100
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