GitHub user jinxing64 opened a pull request:
https://github.com/apache/spark/pull/20781
[SPARK-23637][YARN]Yarn might allocate more resource if a same executor is
killed multiple times.
## What changes were proposed in this pull request?
`YarnAllocator` uses `numExecutorsRunning` to track the number of running
executor. `numExecutorsRunning` is used to check if there're executors missing
and need to allocate more.
In current code, `numExecutorsRunning` can be negative when driver asks to
kill a same idle executor multiple times.
## How was this patch tested?
UT added
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/jinxing64/spark SPARK-23637
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/20781.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 #20781
----
commit bd6f8a1dd608d95f6faf2758cbd36e6328f48eb3
Author: jinxing <jinxing6042@...>
Date: 2018-03-09T05:53:10Z
[SPARK-23637][YARN]Yarn might allocate more resource if a same executor is
killed multiple times.
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