Hi,
I got an error of Uncaught exception in
thread heartbeat-receiver-event-loop-thread. Does this error indicate that
some node is too overloaded to be responsive? Thanks!
ERROR Utils: Uncaught exception in thread
heartbeat-receiver-event-loop-thread
java.lang.NullPointerException
at
org.apache.spark.util.CollectionAccumulator.value(AccumulatorV2.scala:464)
at
org.apache.spark.util.CollectionAccumulator.value(AccumulatorV2.scala:439)
at
org.apache.spark.scheduler.TaskSchedulerImpl$$anonfun$6$$anonfun$7.apply(TaskSchedulerImpl.scala:408)
at
org.apache.spark.scheduler.TaskSchedulerImpl$$anonfun$6$$anonfun$7.apply(TaskSchedulerImpl.scala:408)
at
scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234)
at
scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234)
at scala.collection.Iterator$class.foreach(Iterator.scala:893)
at scala.collection.AbstractIterator.foreach(Iterator.scala:1336)
at
scala.collection.IterableLike$class.foreach(IterableLike.scala:72)
at scala.collection.AbstractIterable.foreach(Iterable.scala:54)
at
scala.collection.TraversableLike$class.map(TraversableLike.scala:234)
at scala.collection.AbstractTraversable.map(Traversable.scala:104)
at
org.apache.spark.scheduler.TaskSchedulerImpl$$anonfun$6.apply(TaskSchedulerImpl.scala:408)
at
org.apache.spark.scheduler.TaskSchedulerImpl$$anonfun$6.apply(TaskSchedulerImpl.scala:407)
at
scala.collection.TraversableLike$$anonfun$flatMap$1.apply(TraversableLike.scala:241)
at
scala.collection.TraversableLike$$anonfun$flatMap$1.apply(TraversableLike.scala:241)
at
scala.collection.IndexedSeqOptimized$class.foreach(IndexedSeqOptimized.scala:33)
at
scala.collection.mutable.ArrayOps$ofRef.foreach(ArrayOps.scala:186)
at
scala.collection.TraversableLike$class.flatMap(TraversableLike.scala:241)
at
scala.collection.mutable.ArrayOps$ofRef.flatMap(ArrayOps.scala:186)
at
org.apache.spark.scheduler.TaskSchedulerImpl.executorHeartbeatReceived(TaskSchedulerImpl.scala:407)
at
org.apache.spark.HeartbeatReceiver$$anonfun$receiveAndReply$1$$anon$2$$anonfun$run$2.apply$mcV$sp(HeartbeatReceiver.scala:129)
at
org.apache.spark.util.Utils$.tryLogNonFatalError(Utils.scala:1295)
at
org.apache.spark.HeartbeatReceiver$$anonfun$receiveAndReply$1$$anon$2.run(HeartbeatReceiver.scala:128)
at
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
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)
