[jira] [Created] (SPARK-13670) spark-class doesn't bubble up error from launcher command

["Mark Grover (JIRA)" <ji...@apache.org>]

Mark Grover created SPARK-13670:
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             Summary: spark-class doesn't bubble up error from launcher command
                 Key: SPARK-13670
                 URL: https://issues.apache.org/jira/browse/SPARK-13670
             Project: Spark
          Issue Type: Bug
          Components: Spark Submit
    Affects Versions: 2.0.0
            Reporter: Mark Grover
            Priority: Minor


There's a particular snippet in spark-class [here|https://github.com/apache/spark/blob/master/bin/spark-class#L86] that runs the spark-launcher code in a subshell.
{code}
# The launcher library will print arguments separated by a NULL character, to allow arguments with
# characters that would be otherwise interpreted by the shell. Read that in a while loop, populating
# an array that will be used to exec the final command.
CMD=()
while IFS= read -d '' -r ARG; do
  CMD+=("$ARG")
done < <("$RUNNER" -cp "$LAUNCH_CLASSPATH" org.apache.spark.launcher.Main "$@")
{code}

The problem is that the if the launcher Main fails, this code still still returns success and continues, even though the top level script is marked {{set -e}}.
This is because the launcher.Main is run within a subshell.



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