Bug: LiveRDDDistribution.toApi throws NullPointerException
Status: Resolved | Priority: Major | Resolution: Fixed
Created: 23/Aug/21 13:10
Affects Version/s: 3.0.3

{code:java}
21/08/23 12:26:29 ERROR AsyncEventQueue: Listener AppStatusListener threw an exception
java.lang.NullPointerException
	at com.google.common.base.Preconditions.checkNotNull(Preconditions.java:192)
	at com.google.common.collect.MapMakerInternalMap.putIfAbsent(MapMakerInternalMap.java:3507)
	at com.google.common.collect.Interners$WeakInterner.intern(Interners.java:85)
	at org.apache.spark.status.LiveEntityHelpers$.weakIntern(LiveEntity.scala:696)
	at org.apache.spark.status.LiveRDDDistribution.toApi(LiveEntity.scala:563)
	at org.apache.spark.status.LiveRDD.$anonfun$doUpdate$4(LiveEntity.scala:629)
	at scala.collection.TraversableLike.$anonfun$map$1(TraversableLike.scala:238)
	at scala.collection.mutable.HashMap$$anon$2.$anonfun$foreach$3(HashMap.scala:158)
	at scala.collection.mutable.HashTable.foreachEntry(HashTable.scala:237)
	at scala.collection.mutable.HashTable.foreachEntry$(HashTable.scala:230)
	at scala.collection.mutable.HashMap.foreachEntry(HashMap.scala:44)
	at scala.collection.mutable.HashMap$$anon$2.foreach(HashMap.scala:158)
	at scala.collection.TraversableLike.map(TraversableLike.scala:238)
	at scala.collection.TraversableLike.map$(TraversableLike.scala:231)
	at scala.collection.AbstractTraversable.map(Traversable.scala:108)
	at org.apache.spark.status.LiveRDD.doUpdate(LiveEntity.scala:629)
	at org.apache.spark.status.LiveEntity.write(LiveEntity.scala:51)
	at org.apache.spark.status.AppStatusListener.update(AppStatusListener.scala:1206)
	at org.apache.spark.status.AppStatusListener.maybeUpdate(AppStatusListener.scala:1212)
	at org.apache.spark.status.AppStatusListener.$anonfun$onExecutorMetricsUpdate$6(AppStatusListener.scala:956)
	at org.apache.spark.status.AppStatusListener.$anonfun$onExecutorMetricsUpdate$6$adapted(AppStatusListener.scala:956)
	at scala.collection.mutable.HashMap$$anon$2.$anonfun$foreach$3(HashMap.scala:158)
	at scala.collection.mutable.HashTable.foreachEntry(HashTable.scala:237)
	at scala.collection.mutable.HashTable.foreachEntry$(HashTable.scala:230)
	at scala.collection.mutable.HashMap.foreachEntry(HashMap.scala:44)
	at scala.collection.mutable.HashMap$$anon$2.foreach(HashMap.scala:158)
	at org.apache.spark.status.AppStatusListener.flush(AppStatusListener.scala:1015)
	at org.apache.spark.status.AppStatusListener.onExecutorMetricsUpdate(AppStatusListener.scala:956)
	at org.apache.spark.scheduler.SparkListenerBus.doPostEvent(SparkListenerBus.scala:59)
	at org.apache.spark.scheduler.SparkListenerBus.doPostEvent$(SparkListenerBus.scala:28)
	at org.apache.spark.scheduler.AsyncEventQueue.doPostEvent(AsyncEventQueue.scala:37)
	at org.apache.spark.scheduler.AsyncEventQueue.doPostEvent(AsyncEventQueue.scala:37)
	at org.apache.spark.util.ListenerBus.postToAll(ListenerBus.scala:119)
	at org.apache.spark.util.ListenerBus.postToAll$(ListenerBus.scala:103)
	at org.apache.spark.scheduler.AsyncEventQueue.super$postToAll(AsyncEventQueue.scala:105)
	at org.apache.spark.scheduler.AsyncEventQueue.$anonfun$dispatch$1(AsyncEventQueue.scala:105)
	at scala.runtime.java8.JFunction0$mcJ$sp.apply(JFunction0$mcJ$sp.java:23)
	at scala.util.DynamicVariable.withValue(DynamicVariable.scala:62)
	at org.apache.spark.scheduler.AsyncEventQueue.org$apache$spark$scheduler$AsyncEventQueue$$dispatch(AsyncEventQueue.scala:100)
	at org.apache.spark.scheduler.AsyncEventQueue$$anon$2.$anonfun$run$1(AsyncEventQueue.scala:96)
	at org.apache.spark.util.Utils$.tryOrStopSparkContext(Utils.scala:1585)
	at org.apache.spark.scheduler.AsyncEventQueue$$anon$2.run(AsyncEventQueue.scala:96)
{code}