[jira] [Created] (SPARK-20546) spark-class gets syntax error in posix mode

["Jessie Yu (JIRA)" <ji...@apache.org>]

Jessie Yu created SPARK-20546:
---------------------------------

             Summary: spark-class gets syntax error in posix mode
                 Key: SPARK-20546
                 URL: https://issues.apache.org/jira/browse/SPARK-20546
             Project: Spark
          Issue Type: Bug
          Components: Deploy
    Affects Versions: 2.0.2
            Reporter: Jessie Yu
            Priority: Minor


spark-class gets the following error when running in posix mode:
{code}
spark-class: line 78: syntax error near unexpected token `<'
spark-class: line 78: `done < <(build_command "$@")'
{code}
\\
It appears to be complaining about the process substitution: 
{code}
CMD=()
while IFS= read -d '' -r ARG; do
  CMD+=("$ARG")
done < <(build_command "$@")
{code}
\\
This can be reproduced by first turning on allexport then posix mode:
{code}set -a -o posix {code}
then run something like spark-shell which calls spark-class.

\\
The simplest fix is probably to always turn off posix mode in spark-class before the while loop.
\\
This was previously reported in [SPARK-8417|https://issues.apache.org/jira/browse/SPARK-8417] which closed with cannot reproduce. 



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