Github user pwendell commented on a diff in the pull request:
https://github.com/apache/spark/pull/877#discussion_r13169766
--- Diff: bin/compute-classpath.sh ---
@@ -51,17 +53,31 @@ if [ -f "$ASSEMBLY_DIR"/spark-assembly*hadoop*-deps.jar
]; then
CLASSPATH="$CLASSPATH:$FWDIR/sql/core/target/scala-$SCALA_VERSION/classes"
CLASSPATH="$CLASSPATH:$FWDIR/sql/hive/target/scala-$SCALA_VERSION/classes"
CLASSPATH="$CLASSPATH:$FWDIR/yarn/stable/target/scala-$SCALA_VERSION/classes"
+fi
- ASSEMBLY_JAR=$(ls "$ASSEMBLY_DIR"/spark-assembly*hadoop*-deps.jar
2>/dev/null)
+# Use spark-assembly jar from either RELEASE or assembly directory
+if [ -f "$FWDIR/RELEASE" ]; then
+ assembly_folder="$FWDIR"/lib
else
- # Else use spark-assembly jar from either RELEASE or assembly directory
- if [ -f "$FWDIR/RELEASE" ]; then
- ASSEMBLY_JAR=$(ls "$FWDIR"/lib/spark-assembly*hadoop*.jar 2>/dev/null)
- else
- ASSEMBLY_JAR=$(ls "$ASSEMBLY_DIR"/spark-assembly*hadoop*.jar
2>/dev/null)
- fi
+ assembly_folder="$ASSEMBLY_DIR"
fi
+num_jars=$(ls "$assembly_folder" | grep "spark-assembly.*hadoop.*.jar" |
wc -l)
+if [ "$num_jars" -eq "0" ]; then
+ echo "Failed to find Spark assembly in $assembly_folder"
+ echo "You need to build Spark before running this program."
+ exit 1
--- End diff --
Okay actually this will work just fine as-is. `CommandUtils` checks for a
non-zero exit code, and it throws a Spark exception if there is one.
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