wuyi created SPARK-31472:
----------------------------
Summary: allGather() may return null messages
Key: SPARK-31472
URL: https://issues.apache.org/jira/browse/SPARK-31472
Project: Spark
Issue Type: Bug
Components: Spark Core
Affects Versions: 3.0.0
Reporter: wuyi
{code:java}
[info] BarrierTaskContextSuite:
[info] - share messages with allGather() call *** FAILED *** (18 seconds, 705
milliseconds)
[info] org.apache.spark.SparkException: Job aborted due to stage failure:
Could not recover from a failed barrier ResultStage. Most recent failure
reason: Stage failed because barrier task ResultTask(0, 2) finished
unsuccessfully.
[info] java.lang.NullPointerException
[info] at
scala.collection.mutable.ArrayOps$ofRef$.length$extension(ArrayOps.scala:204)
[info] at scala.collection.mutable.ArrayOps$ofRef.length(ArrayOps.scala:204)
[info] at
scala.collection.IndexedSeqOptimized.toList(IndexedSeqOptimized.scala:285)
[info] at
scala.collection.IndexedSeqOptimized.toList$(IndexedSeqOptimized.scala:284)
[info] at scala.collection.mutable.ArrayOps$ofRef.toList(ArrayOps.scala:198)
[info] at
org.apache.spark.scheduler.BarrierTaskContextSuite.$anonfun$new$4(BarrierTaskContextSuite.scala:68)
[info] at
org.apache.spark.rdd.RDDBarrier.$anonfun$mapPartitions$2(RDDBarrier.scala:51)
[info] at
org.apache.spark.rdd.RDDBarrier.$anonfun$mapPartitions$2$adapted(RDDBarrier.scala:51)
[info] at
org.apache.spark.rdd.MapPartitionsRDD.compute(MapPartitionsRDD.scala:52)
[info] at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:373)
[info] at org.apache.spark.rdd.RDD.iterator(RDD.scala:337)
[info] at org.apache.spark.scheduler.ResultTask.runTask(ResultTask.scala:90)
[info] at org.apache.spark.scheduler.Task.run(Task.scala:127)
[info] at
org.apache.spark.executor.Executor$TaskRunner.$anonfun$run$3(Executor.scala:460)
[info] at org.apache.spark.util.Utils$.tryWithSafeFinally(Utils.scala:1377)
[info] at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:463)
[info] at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
[info] at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
[info] at java.lang.Thread.run(Thread.java:748)
[info] at
org.apache.spark.scheduler.DAGScheduler.failJobAndIndependentStages(DAGScheduler.scala:2094)
[info] at
org.apache.spark.scheduler.DAGScheduler.$anonfun$abortStage$2(DAGScheduler.scala:2043)
[info] at
org.apache.spark.scheduler.DAGScheduler.$anonfun$abortStage$2$adapted(DAGScheduler.scala:2042)
[info] at
scala.collection.mutable.ResizableArray.foreach(ResizableArray.scala:62)
[info] at
scala.collection.mutable.ResizableArray.foreach$(ResizableArray.scala:55)
[info] at scala.collection.mutable.ArrayBuffer.foreach(ArrayBuffer.scala:49)
[info] at
org.apache.spark.scheduler.DAGScheduler.abortStage(DAGScheduler.scala:2042)
[info] at
org.apache.spark.scheduler.DAGScheduler.handleTaskCompletion(DAGScheduler.scala:1831)
[info] at
org.apache.spark.scheduler.DAGSchedulerEventProcessLoop.doOnReceive(DAGScheduler.scala:2271)
[info] at
org.apache.spark.scheduler.DAGSchedulerEventProcessLoop.onReceive(DAGScheduler.scala:2223)
[info] at
org.apache.spark.scheduler.DAGSchedulerEventProcessLoop.onReceive(DAGScheduler.scala:2212)
[info] at org.apache.spark.util.EventLoop$$anon$1.run(EventLoop.scala:49)
[info] at
org.apache.spark.scheduler.DAGScheduler.runJob(DAGScheduler.scala:822)
[info] at org.apache.spark.SparkContext.runJob(SparkContext.scala:2108)
[info] at org.apache.spark.SparkContext.runJob(SparkContext.scala:2129)
[info] at org.apache.spark.SparkContext.runJob(SparkContext.scala:2148)
[info] at org.apache.spark.SparkContext.runJob(SparkContext.scala:2173)
[info] at org.apache.spark.rdd.RDD.$anonfun$collect$1(RDD.scala:1030)
[info] at
org.apache.spark.rdd.RDDOperationScope$.withScope(RDDOperationScope.scala:151)
[info] at
org.apache.spark.rdd.RDDOperationScope$.withScope(RDDOperationScope.scala:112)
[info] at org.apache.spark.rdd.RDD.withScope(RDD.scala:414)
[info] at org.apache.spark.rdd.RDD.collect(RDD.scala:1029)
[info] at
org.apache.spark.scheduler.BarrierTaskContextSuite.$anonfun$new$3(BarrierTaskContextSuite.scala:71)
[info] at
scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:23)
[info] at org.scalatest.OutcomeOf.outcomeOf(OutcomeOf.scala:85)
[info] at org.scalatest.OutcomeOf.outcomeOf$(OutcomeOf.scala:83)
[info] at org.scalatest.OutcomeOf$.outcomeOf(OutcomeOf.scala:104)
[info] at org.scalatest.Transformer.apply(Transformer.scala:22)
[info] at org.scalatest.Transformer.apply(Transformer.scala:20)
[info] at org.scalatest.FunSuiteLike$$anon$1.apply(FunSuiteLike.scala:186)
[info] at org.apache.spark.SparkFunSuite.withFixture(SparkFunSuite.scala:151)
[info] at
org.scalatest.FunSuiteLike.invokeWithFixture$1(FunSuiteLike.scala:184)
[info] at
org.scalatest.FunSuiteLike.$anonfun$runTest$1(FunSuiteLike.scala:196)
[info] at org.scalatest.SuperEngine.runTestImpl(Engine.scala:286)
[info] at org.scalatest.FunSuiteLike.runTest(FunSuiteLike.scala:196)
[info] at org.scalatest.FunSuiteLike.runTest$(FunSuiteLike.scala:178)
[info] at
org.apache.spark.SparkFunSuite.org$scalatest$BeforeAndAfterEach$$super$runTest(SparkFunSuite.scala:58)
[info] at
org.scalatest.BeforeAndAfterEach.runTest(BeforeAndAfterEach.scala:221)
[info] at
org.scalatest.BeforeAndAfterEach.runTest$(BeforeAndAfterEach.scala:214)
[info] at org.apache.spark.SparkFunSuite.runTest(SparkFunSuite.scala:58)
[info] at
org.scalatest.FunSuiteLike.$anonfun$runTests$1(FunSuiteLike.scala:229)
[info] at
org.scalatest.SuperEngine.$anonfun$runTestsInBranch$1(Engine.scala:393)
[info] at scala.collection.immutable.List.foreach(List.scala:392)
[info] at org.scalatest.SuperEngine.traverseSubNodes$1(Engine.scala:381)
[info] at org.scalatest.SuperEngine.runTestsInBranch(Engine.scala:376)
[info] at org.scalatest.SuperEngine.runTestsImpl(Engine.scala:458)
[info] at org.scalatest.FunSuiteLike.runTests(FunSuiteLike.scala:229)
[info] at org.scalatest.FunSuiteLike.runTests$(FunSuiteLike.scala:228)
[info] at org.scalatest.FunSuite.runTests(FunSuite.scala:1560)
[info] at org.scalatest.Suite.run(Suite.scala:1124)
[info] at org.scalatest.Suite.run$(Suite.scala:1106)
[info] at
org.scalatest.FunSuite.org$scalatest$FunSuiteLike$$super$run(FunSuite.scala:1560)
[info] at org.scalatest.FunSuiteLike.$anonfun$run$1(FunSuiteLike.scala:233)
[info] at org.scalatest.SuperEngine.runImpl(Engine.scala:518)
[info] at org.scalatest.FunSuiteLike.run(FunSuiteLike.scala:233)
[info] at org.scalatest.FunSuiteLike.run$(FunSuiteLike.scala:232)
[info] at
org.apache.spark.SparkFunSuite.org$scalatest$BeforeAndAfterAll$$super$run(SparkFunSuite.scala:58)
[info] at
org.scalatest.BeforeAndAfterAll.liftedTree1$1(BeforeAndAfterAll.scala:213)
[info] at org.scalatest.BeforeAndAfterAll.run(BeforeAndAfterAll.scala:210)
[info] at org.scalatest.BeforeAndAfterAll.run$(BeforeAndAfterAll.scala:208)
[info] at org.apache.spark.SparkFunSuite.run(SparkFunSuite.scala:58)
[info] at
org.scalatest.tools.Framework.org$scalatest$tools$Framework$$runSuite(Framework.scala:317)
[info] at
org.scalatest.tools.Framework$ScalaTestTask.execute(Framework.scala:510)
[info] at sbt.ForkMain$Run$2.call(ForkMain.java:296)
[info] at sbt.ForkMain$Run$2.call(ForkMain.java:286)
[info] at java.util.concurrent.FutureTask.run(FutureTask.java:266)
[info] at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
[info] at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
[info] at java.lang.Thread.run(Thread.java:748)
{code}
{code:java}
{code}
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