Github user pwendell commented on the pull request: https://github.com/apache/spark/pull/2685#issuecomment-61018904 So I found out, something really weird is going on. There was an exception in the test logs: ``` 14/10/29 13:41:35.349 task-result-getter-0 WARN TaskSetManager: Lost task 0.0 in stage 0.0 (TID 0, localhost): java.lang.NoClassDefFoundError: org/objenesis/strategy/InstantiatorStrategy org.apache.spark.serializer.KryoSerializer.newKryo(KryoSerializer.scala:72) org.apache.spark.serializer.KryoSerializerInstance.<init>(KryoSerializer.scala:157) org.apache.spark.serializer.KryoSerializer.newInstance(KryoSerializer.scala:119) org.apache.spark.storage.DiskBlockObjectWriter.open(BlockObjectWriter.scala:127) org.apache.spark.storage.DiskBlockObjectWriter.write(BlockObjectWriter.scala:192) org.apache.spark.shuffle.hash.HashShuffleWriter$$anonfun$write$1.apply(HashShuffleWriter.scala:67) org.apache.spark.shuffle.hash.HashShuffleWriter$$anonfun$write$1.apply(HashShuffleWriter.scala:65) scala.collection.Iterator$class.foreach(Iterator.scala:727) scala.collection.AbstractIterator.foreach(Iterator.scala:1157) org.apache.spark.shuffle.hash.HashShuffleWriter.write(HashShuffleWriter.scala:65) org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:68) ``` I looked a bit more and for some reason the `objenesis-1.2.jar` file is not included in the assembly classpath when Hive 0.13 is used at compile even though it is included with Hive 0.12. They both should logically depend on it via twitter chill, so I'm pretty stumped. I'm continuing to investigate. You can find the dependency classpath using: ``` sbt/sbt -Pyarn -Phadoop-2.3 -Dhadoop.version=2.3.0 -Pkinesis-asl -Phive -Phive-0.13.1 "show assembly/compile:dependency-classpath" ```
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