Add warning if properties file does not exist

Author: andrewor14

bin/spark-submit

@@ -53,6 +53,7 @@ if [ $DEPLOY_MODE == "client" ]; then
   # a key value pair delimited either by white space or "=" sign. All
   # spark.driver.* configs must be processed now before it's too late.
   if [ -f "$PROPERTIES_FILE" ]; then
+    echo "Using properties file $PROPERTIES_FILE"
     DRIVER_EXTRA_JAVA_OPTS="spark.driver.extraJavaOptions"
     DRIVER_EXTRA_CLASSPATH="spark.driver.extraClassPath"
     DRIVER_EXTRA_LIBRARY_PATH="spark.driver.extraLibraryPath"
@@ -66,6 +67,8 @@ if [ $DEPLOY_MODE == "client" ]; then
     export SPARK_SUBMIT_OPTS="$SPARK_SUBMIT_OPTS $DRIVER_EXTRA_JAVA_OPTS"
     export SPARK_SUBMIT_CLASSPATH="$SPARK_SUBMIT_CLASSPATH:$DRIVER_EXTRA_CLASSPATH"
     export SPARK_SUBMIT_LIBRARY_PATH="$SPARK_SUBMIT_LIBRARY_PATH:$DRIVER_EXTRA_LIBRARY_PATH"
+  else
+    echo "Warning: properties file $PROPERTIES_FILE does not exist."
   fi
 fi