GitHub user 10110346 opened a pull request:
https://github.com/apache/spark/pull/18711
[SPARK-21506][DOC]The description of "spark.executor.cores" may be not
correct
## What changes were proposed in this pull request?
The number of cores assigned to each executor is configurable. When this is
not explicitly set, multiple executors from the same application may be
launched on the same worker too.
## How was this patch tested?
N/A
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/10110346/spark executorcores
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/18711.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 #18711
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commit 602720b08271080374a13a0a0499c9fcc6304a5d
Author: liuxian <[email protected]>
Date: 2017-07-22T08:16:54Z
fix
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