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https://issues.apache.org/jira/browse/SPARK-12945?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15886397#comment-15886397
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Josh Rosen commented on SPARK-12945:
------------------------------------
I'm still seeing this error intermittently on Spark 2.0.3 clusters. Here's the
stacktrace as of that version:
{code}
"Listener JobProgressListener threw an exception
java.lang.NullPointerException
at
org.apache.spark.ui.jobs.JobProgressListener$$anonfun$onTaskEnd$1.apply(JobProgressListener.scala:365)
at
org.apache.spark.ui.jobs.JobProgressListener$$anonfun$onTaskEnd$1.apply(JobProgressListener.scala:364)
at scala.collection.immutable.List.foreach(List.scala:318)
at
scala.collection.generic.TraversableForwarder$class.foreach(TraversableForwarder.scala:32)
at scala.collection.mutable.ListBuffer.foreach(ListBuffer.scala:45)
at
org.apache.spark.ui.jobs.JobProgressListener.onTaskEnd(JobProgressListener.scala:364)
at
org.apache.spark.scheduler.SparkListenerBus$class.doPostEvent(SparkListenerBus.scala:45)
at
org.apache.spark.scheduler.LiveListenerBus.doPostEvent(LiveListenerBus.scala:36)
at
org.apache.spark.scheduler.LiveListenerBus.doPostEvent(LiveListenerBus.scala:36)
at
org.apache.spark.util.ListenerBus$class.postToAll(ListenerBus.scala:63)
at
org.apache.spark.scheduler.LiveListenerBus.postToAll(LiveListenerBus.scala:36)
at
org.apache.spark.scheduler.LiveListenerBus$$anon$1$$anonfun$run$1$$anonfun$apply$mcV$sp$1.apply$mcV$sp(LiveListenerBus.scala:94)
at
org.apache.spark.scheduler.LiveListenerBus$$anon$1$$anonfun$run$1$$anonfun$apply$mcV$sp$1.apply(LiveListenerBus.scala:79)
at
org.apache.spark.scheduler.LiveListenerBus$$anon$1$$anonfun$run$1$$anonfun$apply$mcV$sp$1.apply(LiveListenerBus.scala:79)
at scala.util.DynamicVariable.withValue(DynamicVariable.scala:57)
at
org.apache.spark.scheduler.LiveListenerBus$$anon$1$$anonfun$run$1.apply$mcV$sp(LiveListenerBus.scala:78)
at org.apache.spark.util.Utils$.tryOrStopSparkContext(Utils.scala:1252)
at
org.apache.spark.scheduler.LiveListenerBus$$anon$1.run(LiveListenerBus.scala:77)"
{code}
Possibly related is an NPE in TaskUIData:
{code}
"Listener JobProgressListener threw an exception
java.lang.NullPointerException
at
org.apache.spark.ui.jobs.UIData$TaskUIData$$anonfun$dropInternalAndSQLAccumulables$1.apply(UIData.scala:169)
at
org.apache.spark.ui.jobs.UIData$TaskUIData$$anonfun$dropInternalAndSQLAccumulables$1.apply(UIData.scala:169)
at
scala.collection.TraversableLike$$anonfun$filter$1.apply(TraversableLike.scala:264)
at scala.collection.immutable.List.foreach(List.scala:318)
at
scala.collection.generic.TraversableForwarder$class.foreach(TraversableForwarder.scala:32)
at scala.collection.mutable.ListBuffer.foreach(ListBuffer.scala:45)
at
scala.collection.TraversableLike$class.filter(TraversableLike.scala:263)
at scala.collection.AbstractTraversable.filter(Traversable.scala:105)
at
org.apache.spark.ui.jobs.UIData$TaskUIData$.dropInternalAndSQLAccumulables(UIData.scala:168)
at
org.apache.spark.ui.jobs.UIData$TaskUIData.updateTaskInfo(UIData.scala:120)
at
org.apache.spark.ui.jobs.JobProgressListener.onTaskEnd(JobProgressListener.scala:401)
at
org.apache.spark.scheduler.SparkListenerBus$class.doPostEvent(SparkListenerBus.scala:45)
at
org.apache.spark.scheduler.LiveListenerBus.doPostEvent(LiveListenerBus.scala:36)
at
org.apache.spark.scheduler.LiveListenerBus.doPostEvent(LiveListenerBus.scala:36)
at
org.apache.spark.util.ListenerBus$class.postToAll(ListenerBus.scala:63)
at
org.apache.spark.scheduler.LiveListenerBus.postToAll(LiveListenerBus.scala:36)
at
org.apache.spark.scheduler.LiveListenerBus$$anon$1$$anonfun$run$1$$anonfun$apply$mcV$sp$1.apply$mcV$sp(LiveListenerBus.scala:94)
at
org.apache.spark.scheduler.LiveListenerBus$$anon$1$$anonfun$run$1$$anonfun$apply$mcV$sp$1.apply(LiveListenerBus.scala:79)
at
org.apache.spark.scheduler.LiveListenerBus$$anon$1$$anonfun$run$1$$anonfun$apply$mcV$sp$1.apply(LiveListenerBus.scala:79)
at scala.util.DynamicVariable.withValue(DynamicVariable.scala:57)
at
org.apache.spark.scheduler.LiveListenerBus$$anon$1$$anonfun$run$1.apply$mcV$sp(LiveListenerBus.scala:78)
at org.apache.spark.util.Utils$.tryOrStopSparkContext(Utils.scala:1252)
at
org.apache.spark.scheduler.LiveListenerBus$$anon$1.run(LiveListenerBus.scala:77)"
{code}
My hunch is that {{accumulables}} is somehow null.
> ERROR LiveListenerBus: Listener JobProgressListener threw an exception
> ----------------------------------------------------------------------
>
> Key: SPARK-12945
> URL: https://issues.apache.org/jira/browse/SPARK-12945
> Project: Spark
> Issue Type: Bug
> Components: Web UI
> Affects Versions: 1.6.0
> Environment: Linux, yarn-client
> Reporter: Tristan
> Priority: Minor
>
> Seeing this a lot; not sure if it is a problem or spurious error (I recall
> this was an ignorable issue in previous version). The UI seems to be working
> fine:
> ERROR LiveListenerBus: Listener JobProgressListener threw an exception
> java.lang.NullPointerException
> at
> org.apache.spark.ui.jobs.JobProgressListener$$anonfun$onTaskEnd$1.apply(JobProgressListener.scala:361)
> at
> org.apache.spark.ui.jobs.JobProgressListener$$anonfun$onTaskEnd$1.apply(JobProgressListener.scala:360)
> at scala.collection.immutable.List.foreach(List.scala:318)
> at
> scala.collection.generic.TraversableForwarder$class.foreach(TraversableForwarder.scala:32)
> at scala.collection.mutable.ListBuffer.foreach(ListBuffer.scala:45)
> at
> org.apache.spark.ui.jobs.JobProgressListener.onTaskEnd(JobProgressListener.scala:360)
> at
> org.apache.spark.scheduler.SparkListenerBus$class.onPostEvent(SparkListenerBus.scala:42)
> at
> org.apache.spark.scheduler.LiveListenerBus.onPostEvent(LiveListenerBus.scala:31)
> at
> org.apache.spark.scheduler.LiveListenerBus.onPostEvent(LiveListenerBus.scala:31)
> at
> org.apache.spark.util.ListenerBus$class.postToAll(ListenerBus.scala:55)
> at
> org.apache.spark.util.AsynchronousListenerBus.postToAll(AsynchronousListenerBus.scala:37)
> at
> org.apache.spark.util.AsynchronousListenerBus$$anon$1$$anonfun$run$1$$anonfun$apply$mcV$sp$1.apply$mcV$sp(AsynchronousListenerBus.scala:80)
> at
> org.apache.spark.util.AsynchronousListenerBus$$anon$1$$anonfun$run$1$$anonfun$apply$mcV$sp$1.apply(AsynchronousListenerBus.scala:65)
> at
> org.apache.spark.util.AsynchronousListenerBus$$anon$1$$anonfun$run$1$$anonfun$apply$mcV$sp$1.apply(AsynchronousListenerBus.scala:65)
> at scala.util.DynamicVariable.withValue(DynamicVariable.scala:57)
> at
> org.apache.spark.util.AsynchronousListenerBus$$anon$1$$anonfun$run$1.apply$mcV$sp(AsynchronousListenerBus.scala:64)
> at
> org.apache.spark.util.Utils$.tryOrStopSparkContext(Utils.scala:1180)
> at
> org.apache.spark.util.AsynchronousListenerBus$$anon$1.run(AsynchronousListenerBus.scala:63)
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