GitHub user djvulee opened a pull request:
https://github.com/apache/spark/pull/18651
[SPARK-21383][Core] Fix the YarnAllocator allocates more Resource
## What changes were proposed in this pull request?
When NodeManagers launching Executors,
the `missing` value will excel the
real value when the launch is slow, this can lead to YARN allocates more
resource.
We add the `numExecutorToBeLaunched` when calculate the `missing` to avoid
this.
## How was this patch tested?
Test by experiment.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/djvulee/spark YarnAllocate
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/18651.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 #18651
----
commit 818c9126959e8576861478e18389e6ed8fdbeac4
Author: DjvuLee <l...@bytedance.com>
Date: 2017-07-17T07:54:09Z
[Core] Fix the YarnAllocator allocate more Resource
When NodeManagers launched the Executors, the missing will excel the
real value, this can lead to YARN allocate more resource.
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