[jira] [Commented] (SPARK-28627) properties file via SPARK_CONF_DIR and --properties-file prevents definition of own properties via secrets/own mounts

["Hyukjin Kwon (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SPARK-28627?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16900695#comment-16900695 ] 

Hyukjin Kwon commented on SPARK-28627:
--------------------------------------

[~rolandjohann], looks it's better to ask in mailing list before filing it as an issue here

> properties file via SPARK_CONF_DIR and --properties-file prevents definition of own properties via secrets/own mounts
> ---------------------------------------------------------------------------------------------------------------------
>
>                 Key: SPARK-28627
>                 URL: https://issues.apache.org/jira/browse/SPARK-28627
>             Project: Spark
>          Issue Type: Bug
>          Components: Kubernetes
>    Affects Versions: 2.4.3
>            Reporter: Roland Johann
>            Priority: Major
>
> K8S resource manager dumps the config map to /opt/spark/conf/spark-defaults.conf and passes it to spark submit twice:
> * via env var SPARK_CONF_DIR
> * argument --properties-file
> This prevents definition if user defined properties, such as from secrets - currently it seems to be the only possibility to define spark config properties from secrets but is locked currently.
> Is this implementation intent? If yes, what are the reasons behind this decision?



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