pio.log

2017-12-16 21:25:09,626 ERROR org.apache.spark.util.SparkUncaughtExceptionHandler [Executor task launch worker for task 84] - Uncaught exception in thread Thread[Executor task launch worker for task 84,5,main]
java.lang.StackOverflowError
        at java.io.ObjectInputStream$BlockDataInputStream.readByte(ObjectInputStream.java:3120)
        at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2033)
        at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1568)
        at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2282)
        at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:2206)
        at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2064)
        at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1568)
        at java.io.ObjectInputStream.readObject(ObjectInputStream.java:428)
        at scala.collection.immutable.List$SerializationProxy.readObject(List.scala:479)
        at sun.reflect.GeneratedMethodAccessor6.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:1158)
        at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:2173)
        at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2064)
        at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1568)
        at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2282)
        at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:2206)
        at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2064)
        at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1568)
        at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2282)
        at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:2206)
        at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2064)
        at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1568)
        at java.io.ObjectInputStream.readObject(ObjectInputStream.java:428)
        at scala.collection.immutable.List$SerializationProxy.readObject(List.scala:479)
        at sun.reflect.GeneratedMethodAccessor6.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1158)
        at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:2173)
        at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2064)
        at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1568)
        at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2282)
        at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:2206)
        at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2064)
        at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1568)
        at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2282)
        at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:2206)
        at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2064)
        at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1568)
        at java.io.ObjectInputStream.readObject(ObjectInputStream.java:428)
        at scala.collection.immutable.List$SerializationProxy.readObject(List.scala:479)
        at sun.reflect.GeneratedMethodAccessor6.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:1158)
        at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:2173)
        at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2064)
        ......................