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https://issues.apache.org/jira/browse/SPARK-2722?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15557158#comment-15557158
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holdenk commented on SPARK-2722:
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I think at this point trying to change the escaping of the different
configuration escaping mechanisms is likely to lead to more broken issues than
we avoid - how do people feel about closing this?
> Mechanism for escaping spark configs is not consistent
> ------------------------------------------------------
>
> Key: SPARK-2722
> URL: https://issues.apache.org/jira/browse/SPARK-2722
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
> Affects Versions: 1.0.1
> Reporter: Andrew Or
>
> Currently, you can specify a spark config in spark-defaults.conf as follows:
> {code}
> spark.magic "Mr. Johnson"
> {code}
> and this will preserve the double quotes as part of the string. Naturally, if
> you want to do the equivalent in spark.*.extraJavaOptions, you would use the
> following:
> {code}
> spark.executor.extraJavaOptions "-Dmagic=\"Mr. Johnson\""
> {code}
> However, this fails because the backslashes go away and it tries to interpret
> "Johnson" as the main class argument. Instead, you have to do the following:
> {code}
> spark.executor.extraJavaOptions "-Dmagic=\\\"Mr. Johnson\\\""
> {code}
> which is not super intuitive.
> Note that this only applies to standalone mode. In YARN it's not even
> possible to use quoted strings in config values (SPARK-2718).
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