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https://issues.apache.org/jira/browse/SPARK-25065?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17029640#comment-17029640
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Prashant Sharma commented on SPARK-25065:
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I have an updated patch available for this issue, any feedbacks would be
appreciated.
> Driver and executors pick the wrong logging configuration file.
> ---------------------------------------------------------------
>
> Key: SPARK-25065
> URL: https://issues.apache.org/jira/browse/SPARK-25065
> Project: Spark
> Issue Type: Bug
> Components: Kubernetes
> Affects Versions: 2.4.4, 3.0.0
> Reporter: Prashant Sharma
> Priority: Major
>
> Currently, when running in kubernetes mode, it sets necessary configuration
> properties by creating a spark.properties file and mounting a conf dir.
> The shipped Dockerfile, do not copy conf to the image, and this is on purpose
> and that is well understood. However, one would like to have his custom
> logging configuration file in the image conf directory.
> In order to achieve this, it is not enough to copy it in the spark's conf dir
> of the resultant image, as it is reset during kubernetes mount conf volume
> step.
>
> In order to reproduce, please add {code}-Dlog4j.debug{code} to
> {code:java}spark.(executor|driver).extraJavaOptions{code}. This way, it was
> found the provided log4j file is not picked and the one coming from
> kubernetes client jar was picked up by the driver process.
>
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