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https://issues.apache.org/jira/browse/SPARK-39696?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Apache Spark reassigned SPARK-39696:
------------------------------------
Assignee: Apache Spark
> Uncaught exception in thread executor-heartbeater
> java.util.ConcurrentModificationException: mutation occurred during iteration
> -------------------------------------------------------------------------------------------------------------------------------
>
> Key: SPARK-39696
> URL: https://issues.apache.org/jira/browse/SPARK-39696
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
> Affects Versions: 3.3.0
> Environment: Spark 3.3.0 (spark-3.3.0-bin-hadoop3-scala2.13
> distribution)
> Scala 2.13.8 / OpenJDK 17.0.3 application compilation
> Alpine Linux 3.14.3
> JVM OpenJDK 64-Bit Server VM Temurin-17.0.1+12
> Reporter: Stephen Mcmullan
> Assignee: Apache Spark
> Priority: Major
>
> {noformat}
> 2022-06-21 18:17:49.289Z ERROR [executor-heartbeater]
> org.apache.spark.util.Utils - Uncaught exception in thread
> executor-heartbeater
> java.util.ConcurrentModificationException: mutation occurred during iteration
> at
> scala.collection.mutable.MutationTracker$.checkMutations(MutationTracker.scala:43)
> ~[scala-library-2.13.8.jar:?]
> at
> scala.collection.mutable.CheckedIndexedSeqView$CheckedIterator.hasNext(CheckedIndexedSeqView.scala:47)
> ~[scala-library-2.13.8.jar:?]
> at
> scala.collection.IterableOnceOps.copyToArray(IterableOnce.scala:873)
> ~[scala-library-2.13.8.jar:?]
> at
> scala.collection.IterableOnceOps.copyToArray$(IterableOnce.scala:869)
> ~[scala-library-2.13.8.jar:?]
> at scala.collection.AbstractIterator.copyToArray(Iterator.scala:1293)
> ~[scala-library-2.13.8.jar:?]
> at
> scala.collection.IterableOnceOps.copyToArray(IterableOnce.scala:852)
> ~[scala-library-2.13.8.jar:?]
> at
> scala.collection.IterableOnceOps.copyToArray$(IterableOnce.scala:852)
> ~[scala-library-2.13.8.jar:?]
> at scala.collection.AbstractIterator.copyToArray(Iterator.scala:1293)
> ~[scala-library-2.13.8.jar:?]
> at
> scala.collection.immutable.VectorStatics$.append1IfSpace(Vector.scala:1959)
> ~[scala-library-2.13.8.jar:?]
> at scala.collection.immutable.Vector1.appendedAll0(Vector.scala:425)
> ~[scala-library-2.13.8.jar:?]
> at scala.collection.immutable.Vector.appendedAll(Vector.scala:203)
> ~[scala-library-2.13.8.jar:?]
> at scala.collection.immutable.Vector.appendedAll(Vector.scala:113)
> ~[scala-library-2.13.8.jar:?]
> at scala.collection.SeqOps.concat(Seq.scala:187)
> ~[scala-library-2.13.8.jar:?]
> at scala.collection.SeqOps.concat$(Seq.scala:187)
> ~[scala-library-2.13.8.jar:?]
> at scala.collection.AbstractSeq.concat(Seq.scala:1161)
> ~[scala-library-2.13.8.jar:?]
> at scala.collection.IterableOps.$plus$plus(Iterable.scala:726)
> ~[scala-library-2.13.8.jar:?]
> at scala.collection.IterableOps.$plus$plus$(Iterable.scala:726)
> ~[scala-library-2.13.8.jar:?]
> at scala.collection.AbstractIterable.$plus$plus(Iterable.scala:926)
> ~[scala-library-2.13.8.jar:?]
> at
> org.apache.spark.executor.TaskMetrics.accumulators(TaskMetrics.scala:261)
> ~[spark-core_2.13-3.3.0.jar:3.3.0]
> at
> org.apache.spark.executor.Executor.$anonfun$reportHeartBeat$1(Executor.scala:1042)
> ~[spark-core_2.13-3.3.0.jar:3.3.0]
> at scala.collection.IterableOnceOps.foreach(IterableOnce.scala:563)
> ~[scala-library-2.13.8.jar:?]
> at scala.collection.IterableOnceOps.foreach$(IterableOnce.scala:561)
> ~[scala-library-2.13.8.jar:?]
> at scala.collection.AbstractIterable.foreach(Iterable.scala:926)
> ~[scala-library-2.13.8.jar:?]
> at
> org.apache.spark.executor.Executor.reportHeartBeat(Executor.scala:1036)
> ~[spark-core_2.13-3.3.0.jar:3.3.0]
> at
> org.apache.spark.executor.Executor.$anonfun$heartbeater$1(Executor.scala:238)
> ~[spark-core_2.13-3.3.0.jar:3.3.0]
> at
> scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.scala:18)
> ~[scala-library-2.13.8.jar:?]
> at
> org.apache.spark.util.Utils$.logUncaughtExceptions(Utils.scala:2066)
> ~[spark-core_2.13-3.3.0.jar:3.3.0]
> at org.apache.spark.Heartbeater$$anon$1.run(Heartbeater.scala:46)
> ~[spark-core_2.13-3.3.0.jar:3.3.0]
> at
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) ~[?:?]
> at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:305)
> ~[?:?]
> at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:305)
> ~[?:?]
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
> ~[?:?]
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
> ~[?:?]
> at java.lang.Thread.run(Thread.java:833) ~[?:?] {noformat}
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