Hi,
We are encountering java OptionalDataException in one of our spark jobs.
All the tasks of a stage passes (or atleast we do not see any error), but stage
fails with above exception while getting task result.
And and this exception gets printed on driver.
Any pointers in this regard would be helpful.
Here is the stack-trace:
java.io.OptionalDataException
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1555)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:422)
at
scala.collection.mutable.HashMap$$anonfun$readObject$1.apply(HashMap.scala:174)
at
scala.collection.mutable.HashMap$$anonfun$readObject$1.apply(HashMap.scala:174)
at scala.collection.mutable.HashTable$class.init(HashTable.scala:109)
at scala.collection.mutable.HashMap.init(HashMap.scala:40)
at scala.collection.mutable.HashMap.readObject(HashMap.scala:174)
at sun.reflect.GeneratedMethodAccessor22.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1058)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:2136)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2027)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1535)
at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2245)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:2169)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2027)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1535)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:422)
at
org.apache.spark.scheduler.DirectTaskResult$$anonfun$readExternal$1$$anonfun$apply$mcV$sp$2.apply(TaskResult.scala:67)
at
org.apache.spark.scheduler.DirectTaskResult$$anonfun$readExternal$1$$anonfun$apply$mcV$sp$2.apply(TaskResult.scala:66)
at scala.collection.immutable.Range.foreach(Range.scala:160)
at
org.apache.spark.scheduler.DirectTaskResult$$anonfun$readExternal$1.apply$mcV$sp(TaskResult.scala:66)
at
org.apache.spark.scheduler.DirectTaskResult$$anonfun$readExternal$1.apply(TaskResult.scala:55)
at
org.apache.spark.scheduler.DirectTaskResult$$anonfun$readExternal$1.apply(TaskResult.scala:55)
at org.apache.spark.util.Utils$.tryOrIOException(Utils.scala:1326)
at
org.apache.spark.scheduler.DirectTaskResult.readExternal(TaskResult.scala:55)
at java.io.ObjectInputStream.readExternalData(ObjectInputStream.java:2076)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2025)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1535)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:422)
at
org.apache.spark.serializer.JavaDeserializationStream.readObject(JavaSerializer.scala:75)
at
org.apache.spark.serializer.JavaSerializerInstance.deserialize(JavaSerializer.scala:108)
at
org.apache.spark.scheduler.TaskResultGetter$$anon$3$$anonfun$run$1.apply$mcV$sp(TaskResultGetter.scala:64)
at
org.apache.spark.scheduler.TaskResultGetter$$anon$3$$anonfun$run$1.apply(TaskResultGetter.scala:63)
at
org.apache.spark.scheduler.TaskResultGetter$$anon$3$$anonfun$run$1.apply(TaskResultGetter.scala:63)
at org.apache.spark.util.Utils$.logUncaughtExceptions(Utils.scala:1945)
at
org.apache.spark.scheduler.TaskResultGetter$$anon$3.run(TaskResultGetter.scala:62)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Thanks
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Ravi Aggarwal
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Computer Scientist
669.214.1491 (cell)
San Jose, CA, 95110, US
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