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https://issues.apache.org/jira/browse/SPARK-12176?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15045433#comment-15045433
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Marcelo Vanzin commented on SPARK-12176:
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Do you have a code example and environment where this is an issue?
The launcher uses Runtime.exec() which doesn't require escaping anything. In
fact I just tested this on Linux and it works fine.
> SparkLauncher's setConf() does not support configs containing spaces
> --------------------------------------------------------------------
>
> Key: SPARK-12176
> URL: https://issues.apache.org/jira/browse/SPARK-12176
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
> Affects Versions: 1.4.0, 1.4.1, 1.5.0, 1.5.1, 1.5.2
> Environment: All
> Reporter: Yuhang Chen
> Priority: Minor
>
> The spark-submit uses '--conf K=V' pattern for setting configs. According to
> the docs, if the 'V' you set has spaces in it, the whole 'K=V' parts should
> be wrapped with quotes.
> However, the SparkLauncher (org.apache.spark.launcher.SparkLauncher) would
> not do that wrapping for you, and there is no chance for wrapping by yourself
> with the API it provides.
> I checked up the source, all confs are stored in a Map before generating
> launching commands. Thus. my advice is checking all values of the conf Map
> and do wrapping during command building.
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