[jira] [Created] (SPARK-4076) Parameter expansion in spark-config is wrong

["Kousuke Saruta (JIRA)" <ji...@apache.org>]

Kousuke Saruta created SPARK-4076:
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             Summary: Parameter expansion in spark-config is wrong
                 Key: SPARK-4076
                 URL: https://issues.apache.org/jira/browse/SPARK-4076
             Project: Spark
          Issue Type: Bug
          Components: Spark Core
    Affects Versions: 1.2.0
            Reporter: Kousuke Saruta
            Priority: Minor


In sbin/spark-config.sh, parameter expansion is used to extract source root as follows.

{code}
this="${BASH_SOURCE-$0}"
{code}

I think, the parameter expansion should be ":-" instead of "-".
If we use "-" and BASH_SOURCE="", (empty character is set, not unset),
"" (empty character) is set to $this.



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