GitHub user sahilTakiar opened a pull request:
https://github.com/apache/spark/pull/20893
[SPARK-23785][LAUNCHER] LauncherBackend doesn't check state of connection
before setting state
## What changes were proposed in this pull request?
Changed `LauncherBackend` `set` method so that it checks if the connection
is open or not before writing to it (uses `isConnected`).
## How was this patch tested?
None
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/sahilTakiar/spark master
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/20893.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 #20893
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commit 1896236c9b79975e8add4017eb7fafc1cec59d70
Author: Sahil Takiar <stakiar@...>
Date: 2018-03-23T20:24:21Z
[SPARK-23785][LAUNCHER] LauncherBackend doesn't check state of connection
before setting state
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