Github user coolfrood commented on the pull request:
https://github.com/apache/spark/pull/6361#issuecomment-108470313
The Hive tests fail in an unexplained manner, and I couldn't learn much by
looking at the Hive source code for this failure:
```
10:03:48.669 ERROR org.apache.spark.scheduler.TaskSetManager: Task 0 in
stage 1673.0 failed 1 times; aborting job
[info] - logical.Project should not be resolved if it contains aggregates
or generators *** FAILED *** (374 milliseconds)
[info] org.apache.spark.SparkException: Job aborted due to stage failure:
Task 0 in stage 1673.0 failed 1 times, most recent failure: Lost task 0.0 in
stage 1673.0 (TID 6462, localhost): java.lang.NullPointerException
[info] at
org.apache.hadoop.hive.ql.udf.generic.GenericUDTFExplode.process(GenericUDTFExplode.java:93)
[info] at
org.apache.spark.sql.hive.HiveGenericUdtf.eval(hiveUdfs.scala:510)
[info] at
org.apache.spark.sql.execution.Generate$$anonfun$3$$anonfun$apply$6.apply(Generate.scala:85)
[info] at
org.apache.spark.sql.execution.Generate$$anonfun$3$$anonfun$apply$6.apply(Generate.scala:85)
[info] at
scala.collection.Iterator$$anon$13.hasNext(Iterator.scala:371)
[info] at
scala.collection.Iterator$$anon$12.hasNext(Iterator.scala:350)
[info] at scala.collection.Iterator$class.foreach(Iterator.scala:727)
[info] at
scala.collection.AbstractIterator.foreach(Iterator.scala:1157)
[info] at
org.apache.spark.sql.hive.execution.InsertIntoHiveTable.org$apache$spark$sql$hive$execution$InsertIntoHiveTable$$writeToFile$1(InsertIntoHiveTable.scala:101)
[info] at
org.apache.spark.sql.hive.execution.InsertIntoHiveTable$$anonfun$saveAsHiveFile$3.apply(InsertIntoHiveTable.scala:83)
[info] at
org.apache.spark.sql.hive.execution.InsertIntoHiveTable$$anonfun$saveAsHiveFile$3.apply(InsertIntoHiveTable.scala:83)
[info] at
org.apache.spark.scheduler.ResultTask.runTask(ResultTask.scala:61)
[info] at org.apache.spark.scheduler.Task.run(Task.scala:73)
[info] at
org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:213)
[info] at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
[info] at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
[info] at java.lang.Thread.run(Thread.java:745)
```
Can we get some Hive expert to weigh in on this? Somehow switching Kryo
from `2.21` to `2.24.0` causes this problem.
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