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https://issues.apache.org/jira/browse/SPARK-7706?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14548365#comment-14548365
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Sean Owen commented on SPARK-7706:
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Hm, I'd swear I've used this outside Spark but I am not sure. Can the Oozie job
shell out to invoke Spark? that might be safer in several regards rather than
relying on the classpath/env of Oozie. Spark isn't intended to be invoked
in-process like that, so I imagine you'll run into a number of things like this
if you go down that road anyway.
> Allow setting YARN_CONF_DIR from spark argument
> -----------------------------------------------
>
> Key: SPARK-7706
> URL: https://issues.apache.org/jira/browse/SPARK-7706
> Project: Spark
> Issue Type: Improvement
> Components: Spark Submit
> Affects Versions: 1.3.1
> Reporter: Shaik Idris Ali
> Labels: oozie, yarn
>
> Currently in SparkSubmitArguments.scala when master is set to "yarn"
> (yarn-cluster mode)
> https://github.com/apache/spark/blob/b1f4ca82d170935d15f1fe6beb9af0743b4d81cd/core/src/main/scala/org/apache/spark/deploy/SparkSubmitArguments.scala#L236
> Spark checks if YARN_CONF_DIR or HADOOP_CONF_DIR is set in EVN.
> However we should additionally allow passing YARN_CONF_DIR from command line
> argument this is particularly handy when Spark is being launched from
> schedulers like OOZIE or FALCON.
> Reason being, oozie launcher App starts in one of the container assigned by
> Yarn RM and we do not want to set YARN_CONF_DIR in ENV for all the nodes in
> cluster. Just passing the argument like -yarnconfdir with conf dir (ex:
> /etc/hadoop/conf) should avoid setting the ENV variable.
> This is blocking us to onboard spark from oozie or falcon. Thanks.
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