Github user vanzin commented on a diff in the pull request:
https://github.com/apache/spark/pull/3377#discussion_r20689898
--- Diff: bin/run-example ---
@@ -35,9 +35,9 @@ else
fi
if [ -f "$FWDIR/RELEASE" ]; then
- export SPARK_EXAMPLES_JAR="`ls "$FWDIR"/lib/spark-examples-*hadoop*.jar`"
-elif [ -e
"$EXAMPLES_DIR"/target/scala-$SPARK_SCALA_VERSION/spark-examples-*hadoop*.jar
]; then
- export SPARK_EXAMPLES_JAR="`ls
"$EXAMPLES_DIR"/target/scala-$SPARK_SCALA_VERSION/spark-examples-*hadoop*.jar`"
+ export SPARK_EXAMPLES_JAR="`ls -t
"$FWDIR"/lib/spark-examples-*hadoop*.jar 2>>/dev/null | head -1`"
--- End diff --
How do you know this will pick up the right jar?
More generally, I think the only situation someone will run into this is
when switching between branches and rebuilding without cleaning. Not sure it's
worth it to add workarounds in the code for that.
You'll get a similar error from `compute-classpath.sh` if multiple assembly
jars exist. The same behavior should be just fine for the examples.
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