Andrew Or created SPARK-2722:
--------------------------------
Summary: 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
Affects Versions: 1.0.1
Reporter: Andrew Or
Priority: Minor
Fix For: 1.1.0
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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