Github user shivaram commented on a diff in the pull request: https://github.com/apache/spark/pull/877#discussion_r13056089 --- 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 -- Couldn't we pipe the message to stderr to avoid breaking existing behavior ?
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