Github user JoshRosen commented on the pull request:
https://github.com/apache/spark/pull/2030#issuecomment-52597491
Ran into some task failures when testing this commit on EC2 with the
SchedulerThroughputTest:
```
14/08/19 07:01:24 WARN scheduler.TaskSetManager: Lost task 5.0 in stage
995.0 (TID 9974, ip-172-31-24-16.us-west-2.compute.internal):
java.io.IOException: FAILED_TO_UNCOMPRESS(5)
org.xerial.snappy.SnappyNative.throw_error(SnappyNative.java:84)
org.xerial.snappy.SnappyNative.rawUncompress(Native Method)
org.xerial.snappy.Snappy.rawUncompress(Snappy.java:444)
org.xerial.snappy.Snappy.uncompress(Snappy.java:480)
org.xerial.snappy.SnappyInputStream.readFully(SnappyInputStream.java:127)
org.xerial.snappy.SnappyInputStream.readHeader(SnappyInputStream.java:88)
org.xerial.snappy.SnappyInputStream.<init>(SnappyInputStream.java:58)
org.apache.spark.io.SnappyCompressionCodec.compressedInputStream(CompressionCodec.scala:127)
org.apache.spark.broadcast.TorrentBroadcast$.unBlockifyObject(TorrentBroadcast.scala:214)
org.apache.spark.broadcast.TorrentBroadcast.readObject(TorrentBroadcast.scala:151)
sun.reflect.GeneratedMethodAccessor7.invoke(Unknown Source)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
java.lang.reflect.Method.invoke(Method.java:606)
java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1017)
java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1893)
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1798)
java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1350)
java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1990)
java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1915)
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1798)
java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1350)
java.io.ObjectInputStream.readObject(ObjectInputStream.java:370)
org.apache.spark.serializer.JavaDeserializationStream.readObject(JavaSerializer.scala:62)
org.apache.spark.serializer.JavaSerializerInstance.deserialize(JavaSerializer.scala:87)
org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:184)
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
java.lang.Thread.run(Thread.java:745)
```
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