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https://issues.apache.org/jira/browse/SPARK-6277?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14356478#comment-14356478
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Jianshi Huang commented on SPARK-6277:
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I see. Not relating to hadoop config is fine, how about env variables? It's
quite often that I want to change one setting for particular tasks, editing
spark-defaults.conf everytime is inconvenient. Env variables is a best fit here
because of its dynamic scope.
Typesafe's config has similar features for having env variables and it can even
allow it override previous settings.
https://github.com/typesafehub/config#optional-system-or-env-variable-overrides
Jianshi
> Allow Hadoop configurations and env variables to be referenced in
> spark-defaults.conf
> -------------------------------------------------------------------------------------
>
> Key: SPARK-6277
> URL: https://issues.apache.org/jira/browse/SPARK-6277
> Project: Spark
> Issue Type: Improvement
> Components: Spark Submit
> Affects Versions: 1.3.0, 1.2.1
> Reporter: Jianshi Huang
>
> I need to set spark.local.dir to use user local home instead of /tmp, but
> currently spark-defaults.conf can only allow constant values.
> What I want to do is to write:
> bq. spark.local.dir /home/${user.name}/spark/tmp
> or
> bq. spark.local.dir /home/${USER}/spark/tmp
> Otherwise I would have to hack bin/spark-class and pass the option through
> -Dspark.local.dir
> Jianshi
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