GitHub user gengliangwang opened a pull request:
https://github.com/apache/spark/pull/23189
[SPARK-26235][Core] Change log level for
ClassNotFoundException/NoClassDefFoundError in SparkSubmit to Error
## What changes were proposed in this pull request?
In my local setup, I set log4j root category as ERROR
(https://stackoverflow.com/questions/27781187/how-to-stop-info-messages-displaying-on-spark-console
, first item show up if we google search "set spark log level".) When I run
such command
```
spark-submit --class foo bar.jar
```
Nothing shows up, and the script exits.
After quick investigation, I think the log level for
ClassNotFoundException/NoClassDefFoundError in SparkSubmit should be ERROR
instead of WARN. Since the whole process exit because of the exception/error.
Before https://github.com/apache/spark/pull/20925, the message is not
controlled by `log4j.rootCategory`.
## How was this patch tested?
Manual check.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/gengliangwang/spark changeLogLevel
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/23189.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 #23189
----
commit 158d421757989740345be4e52fbc333b08356b5b
Author: Gengliang Wang <gengliang.wang@...>
Date: 2018-11-30T14:23:44Z
change log level
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