java.io.NotSerializableException: DmpLogEntry Serialization stack: - object not serializable (class: dmp.entry.DmpLogEntry, value: dmp.entry.DmpLogEntry@6cfc5a6a) at org.apache.spark.serializer.SerializationDebugger$.improveException(SerializationDebugger.scala:40) at org.apache.spark.serializer.JavaSerializationStream.writeObject(JavaSerializer.scala:47) at org.apache.spark.serializer.SerializationStream.writeValue(Serializer.scala:147) at org.apache.spark.storage.DiskBlockObjectWriter.write(DiskBlockObjectWriter.scala:181) at org.apache.spark.util.collection.WritablePartitionedPairCollection$$anon$1.writeNext(WritablePartitionedPairCollection.scala:55) at org.apache.spark.util.collection.ExternalSorter.spill(ExternalSorter.scala:300) at org.apache.spark.util.collection.ExternalSorter.spill(ExternalSorter.scala:90) at org.apache.spark.util.collection.Spillable$class.maybeSpill(Spillable.scala:83) at org.apache.spark.util.collection.ExternalSorter.maybeSpill(ExternalSorter.scala:90) at org.apache.spark.util.collection.ExternalSorter.maybeSpillCollection(ExternalSorter.scala:244) at org.apache.spark.util.collection.ExternalSorter.insertAll(ExternalSorter.scala:221) at org.apache.spark.shuffle.sort.SortShuffleWriter.write(SortShuffleWriter.scala:73) 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$TaskRunner.run(Executor.scala:214) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:745)
在spark 1.4 jobserver 0.5 環境執行的時候,程序並沒有出錯.
在spark1.5 jobserver0.6 環境執行的時候出了上面的錯誤
所以肯定跟環境是有關系的.在spark-defaults.conf中設置serializer 為 org.apache.spark.serializer.KryoSerializer 就好了
spark.serializer org.apache.spark.serializer.KryoSerializer