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From "Erik Erlandson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SPARK-24091) Internally used ConfigMap prevents use of user-specified ConfigMaps carrying Spark configs files
Date Wed, 30 May 2018 20:22:00 GMT

    [ https://issues.apache.org/jira/browse/SPARK-24091?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16495619#comment-16495619
] 

Erik Erlandson commented on SPARK-24091:
----------------------------------------

If we support user-supplied yaml, that may become a source of config map specifications

> Internally used ConfigMap prevents use of user-specified ConfigMaps carrying Spark configs
files
> ------------------------------------------------------------------------------------------------
>
>                 Key: SPARK-24091
>                 URL: https://issues.apache.org/jira/browse/SPARK-24091
>             Project: Spark
>          Issue Type: Brainstorming
>          Components: Kubernetes
>    Affects Versions: 2.4.0
>            Reporter: Yinan Li
>            Priority: Major
>
> The recent PR [https://github.com/apache/spark/pull/20669] for removing the init-container
introduced a internally used ConfigMap carrying Spark configuration properties in a file for
the driver. This ConfigMap gets mounted under {{$SPARK_HOME/conf}} and the environment variable
{{SPARK_CONF_DIR}} is set to point to the mount path. This pretty much prevents users from
mounting their own ConfigMaps that carry custom Spark configuration files, e.g., {{log4j.properties}} and
{{spark-env.sh}} and leaves users with only the option of building custom images. IMO, it is
very useful to support mounting user-specified ConfigMaps for custom Spark configuration files.
This worths further discussions.



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