[
https://issues.apache.org/jira/browse/SPARK-13670?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15180427#comment-15180427
]
Marcelo Vanzin commented on SPARK-13670:
----------------------------------------
After some fun playing with arcane bash syntax, here's something that worked
for me:
{code}
run_command() {
CMD=()
while IFS='' read -d '' -r ARG; do
echo "line: $ARG"
CMD+=("$ARG")
done
if [ ${#CMD[@]} -gt 0 ]; then
exec "${CMD[@]}"
fi
}
set -o pipefail
"$RUNNER" -cp "$LAUNCH_CLASSPATH" org.apache.spark.launcher.Main "$@" |
run_command
{code}
Example:
{noformat}
$ ./bin/spark-shell
NOTE: SPARK_PREPEND_CLASSES is set, placing locally compiled Spark classes
ahead of assembly.
Exception in thread "main" java.lang.IllegalArgumentException: Testing,
testing, testing...
at org.apache.spark.launcher.Main.main(Main.java:93)
$ echo $?
1
{noformat}
> spark-class doesn't bubble up error from launcher command
> ---------------------------------------------------------
>
> Key: SPARK-13670
> URL: https://issues.apache.org/jira/browse/SPARK-13670
> Project: Spark
> Issue Type: Bug
> Components: Spark Submit
> Affects Versions: 2.0.0
> Reporter: Mark Grover
> Priority: Minor
>
> There's a particular snippet in spark-class
> [here|https://github.com/apache/spark/blob/master/bin/spark-class#L86] that
> runs the spark-launcher code in a subshell.
> {code}
> # The launcher library will print arguments separated by a NULL character, to
> allow arguments with
> # characters that would be otherwise interpreted by the shell. Read that in a
> while loop, populating
> # an array that will be used to exec the final command.
> CMD=()
> while IFS= read -d '' -r ARG; do
> CMD+=("$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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