I am getting following warning while running stateful computation. The state consists of BloomFilter (stream-lib) as Value and Integer as key.
The program runs smoothly for few minutes and after that, i am getting this warning, and streaming app becomes unstable (processing time increases exponentially), and ultimately job fails. WARN TaskSetManager: Lost task 0.0 in stage 144.0 (TID 326, mesos-slave-02): scala.NotImplementedError: put() should not be called on an EmptyStateMap at org.apache.spark.streaming.util.EmptyStateMap.put(StateMap.scala:73) at org.apache.spark.streaming.rdd.MapWithStateRDDRecord$$anonfun$updateRecordWithData$1.apply(MapWithStateRDD.scala:62) at org.apache.spark.streaming.rdd.MapWithStateRDDRecord$$anonfun$updateRecordWithData$1.apply(MapWithStateRDD.scala:55) at scala.collection.Iterator$class.foreach(Iterator.scala:727) at org.apache.spark.InterruptibleIterator.foreach(InterruptibleIterator.scala:28) at org.apache.spark.streaming.rdd.MapWithStateRDDRecord$.updateRecordWithData(MapWithStateRDD.scala:55) at org.apache.spark.streaming.rdd.MapWithStateRDD.compute(MapWithStateRDD.scala:155) at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:306) at org.apache.spark.CacheManager.getOrCompute(CacheManager.scala:69) at org.apache.spark.rdd.RDD.iterator(RDD.scala:268) at org.apache.spark.rdd.MapPartitionsRDD.compute(MapPartitionsRDD.scala:38) at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:306) at org.apache.spark.rdd.RDD.iterator(RDD.scala:270) at org.apache.spark.rdd.MapPartitionsRDD.compute(MapPartitionsRDD.scala:38) at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:306) at org.apache.spark.rdd.RDD.iterator(RDD.scala:270) at org.apache.spark.rdd.MapPartitionsRDD.compute(MapPartitionsRDD.scala:38) at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:306) at org.apache.spark.rdd.RDD.iterator(RDD.scala:270) at org.apache.spark.scheduler.ResultTask.runTask(ResultTask.scala:66) at org.apache.spark.scheduler.Task.run(Task.scala:89) at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:214) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745) I am using kryo serialization. From somewhere in internet, I am getting hint that this may be due to kryo serialization error for OpenHashMapBasedStateMap. But, I have no idea how to fix this. -- View this message in context: http://apache-spark-user-list.1001560.n3.nabble.com/scala-NotImplementedError-put-should-not-be-called-on-an-EmptyStateMap-while-doing-stateful-computatg-tp27200.html Sent from the Apache Spark User List mailing list archive at Nabble.com. --------------------------------------------------------------------- To unsubscribe, e-mail: user-unsubscr...@spark.apache.org For additional commands, e-mail: user-h...@spark.apache.org