GitHub user chenghao-intel opened a pull request:
https://github.com/apache/spark/pull/8635
[SPARK-10466][SQL] UnsafeRow SerDe exception with data spill
Data Spill with UnsafeRow causes assert failure.
```
java.lang.AssertionError: assertion failed
at scala.Predef$.assert(Predef.scala:165)
at
org.apache.spark.sql.execution.UnsafeRowSerializerInstance$$anon$2.writeKey(UnsafeRowSerializer.scala:75)
at
org.apache.spark.storage.DiskBlockObjectWriter.write(DiskBlockObjectWriter.scala:180)
at
org.apache.spark.util.collection.ExternalSorter$$anonfun$writePartitionedFile$2$$anonfun$apply$1.apply(ExternalSorter.scala:688)
at
org.apache.spark.util.collection.ExternalSorter$$anonfun$writePartitionedFile$2$$anonfun$apply$1.apply(ExternalSorter.scala:687)
at scala.collection.Iterator$class.foreach(Iterator.scala:727)
at scala.collection.AbstractIterator.foreach(Iterator.scala:1157)
at
org.apache.spark.util.collection.ExternalSorter$$anonfun$writePartitionedFile$2.apply(ExternalSorter.scala:687)
at
org.apache.spark.util.collection.ExternalSorter$$anonfun$writePartitionedFile$2.apply(ExternalSorter.scala:683)
at scala.collection.Iterator$class.foreach(Iterator.scala:727)
at scala.collection.AbstractIterator.foreach(Iterator.scala:1157)
at
org.apache.spark.util.collection.ExternalSorter.writePartitionedFile(ExternalSorter.scala:683)
at
org.apache.spark.shuffle.sort.SortShuffleWriter.write(SortShuffleWriter.scala:80)
at
org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:73)
at
org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:41)
at org.apache.spark.scheduler.Task.run(Task.scala:88)
at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:214)
```
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/chenghao-intel/spark unsafe_spill
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/8635.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #8635
----
commit 684cdb6f92b973ab872996e1f434324f3160b4be
Author: Cheng Hao <hao.ch...@intel.com>
Date: 2015-09-07T00:39:47Z
UnsafeRow SerDe exception with data spill
----
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