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https://issues.apache.org/jira/browse/BEAM-891?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15633366#comment-15633366
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Amit Sela commented on BEAM-891:
--------------------------------
Well, it "can't" run in parallel because surefire is configured with
{{<forkCount>1</forkCount>}} and {{<reuseForks>false</reuseForks>}}.
But, we're using
{{<beam.spark.test.reuseSparkContext>true</beam.spark.test.reuseSparkContext>}}
so maybe something does get mixed-up there...
> Flake in Spark metrics library?
> -------------------------------
>
> Key: BEAM-891
> URL: https://issues.apache.org/jira/browse/BEAM-891
> Project: Beam
> Issue Type: Bug
> Components: runner-spark
> Reporter: Daniel Halperin
> Assignee: Stas Levin
>
> [~staslev] I think you implemented this functionality originally? Want to
> take a look? CC [~amitsela]
> Run:
> https://builds.apache.org/job/beam_PostCommit_RunnableOnService_SparkLocal/org.apache.beam$beam-runners-spark/43/testReport/junit/org.apache.beam.sdk.transforms/FilterTest/testFilterGreaterThan/
> Error:
> {code}
> java.lang.RuntimeException: java.lang.IndexOutOfBoundsException: 5
> at org.apache.beam.runners.spark.SparkRunner.run(SparkRunner.java:169)
> at
> org.apache.beam.runners.spark.TestSparkRunner.run(TestSparkRunner.java:77)
> at
> org.apache.beam.runners.spark.TestSparkRunner.run(TestSparkRunner.java:53)
> at org.apache.beam.sdk.Pipeline.run(Pipeline.java:182)
> at org.apache.beam.sdk.testing.TestPipeline.run(TestPipeline.java:112)
> at
> org.apache.beam.sdk.transforms.FilterTest.testFilterGreaterThan(FilterTest.java:122)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:498)
> at
> org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
> at
> org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
> at
> org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
> at
> org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
> at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271)
> at
> org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)
> at
> org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
> at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
> at
> org.apache.maven.surefire.junitcore.pc.Scheduler$1.run(Scheduler.java:393)
> at
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
> at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.IndexOutOfBoundsException: 5
> at
> scala.collection.mutable.ResizableArray$class.apply(ResizableArray.scala:43)
> at scala.collection.mutable.ArrayBuffer.apply(ArrayBuffer.scala:47)
> at
> scala.collection.IndexedSeqOptimized$class.segmentLength(IndexedSeqOptimized.scala:189)
> at
> scala.collection.mutable.ArrayBuffer.segmentLength(ArrayBuffer.scala:47)
> at
> scala.collection.IndexedSeqOptimized$class.indexWhere(IndexedSeqOptimized.scala:198)
> at scala.collection.mutable.ArrayBuffer.indexWhere(ArrayBuffer.scala:47)
> at scala.collection.GenSeqLike$class.indexOf(GenSeqLike.scala:144)
> at scala.collection.AbstractSeq.indexOf(Seq.scala:40)
> at scala.collection.GenSeqLike$class.indexOf(GenSeqLike.scala:128)
> at scala.collection.AbstractSeq.indexOf(Seq.scala:40)
> at
> scala.collection.mutable.BufferLike$class.$minus$eq(BufferLike.scala:126)
> at scala.collection.mutable.AbstractBuffer.$minus$eq(Buffer.scala:48)
> at
> org.apache.spark.metrics.MetricsSystem.removeSource(MetricsSystem.scala:159)
> at
> org.apache.beam.runners.spark.translation.SparkRuntimeContext.registerMetrics(SparkRuntimeContext.java:94)
> at
> org.apache.beam.runners.spark.translation.SparkRuntimeContext.<init>(SparkRuntimeContext.java:66)
> at
> org.apache.beam.runners.spark.translation.EvaluationContext.<init>(EvaluationContext.java:73)
> at org.apache.beam.runners.spark.SparkRunner.run(SparkRunner.java:146)
> {code}
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