Log the launch command for Spark daemons

For debugging and analysis purposes, it's nice to have the exact command
used to launch Spark contained within the logs. This adds the necessary
hooks to make that possible.

1 files changed, 9 insertions, 1 deletions

diff --git a/run b/run
index 0a440627a1..8bbde1a027 100755
--- a/run
+++ b/run
@@ -164,4 +164,12 @@ else
   # The JVM doesn't read JAVA_OPTS by default so we need to pass it in
   EXTRA_ARGS="$JAVA_OPTS"
 fi
-exec "$RUNNER" -cp "$CLASSPATH" $EXTRA_ARGS "$@"
+
+command="$RUNNER -cp \"$CLASSPATH\" $EXTRA_ARGS $@"
+if [ "$SPARK_PRINT_LAUNCH_COMMAND" == "1" ]; then
+  echo "Spark Command: $command"
+  echo "======================================"
+  echo
+fi
+
+exec $command