[ https://issues.apache.org/jira/browse/BEAM-3589?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Ismaël Mejía reopened BEAM-3589: -------------------------------- Reopening just to let it in Resolve status until the release is out. > Flink runner breaks with ClassCastException on UnboundedSource > -------------------------------------------------------------- > > Key: BEAM-3589 > URL: https://issues.apache.org/jira/browse/BEAM-3589 > Project: Beam > Issue Type: Bug > Components: runner-flink > Affects Versions: 2.3.0 > Reporter: Ismaël Mejía > Assignee: Grzegorz Kołakowski > Priority: Blocker > Fix For: 2.3.0 > > > When you execute a pipeline tha uses an unbounded source and an empty > transform it produces a ClassCastException: > {quote}[WARNING] > java.lang.reflect.InvocationTargetException > 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.codehaus.mojo.exec.ExecJavaMojo$1.run (ExecJavaMojo.java:294) > at java.lang.Thread.run (Thread.java:748) > Caused by: java.lang.ClassCastException: > org.apache.beam.runners.core.construction.AutoValue_PTransformTranslation_UnknownRawPTransform > cannot be cast to org.apache.beam.sdk.io.Read$Unbounded > at > org.apache.beam.runners.flink.FlinkStreamingTransformTranslators$ReadSourceTranslator.translateNode > (FlinkStreamingTransformTranslators.java:256) > at > org.apache.beam.runners.flink.FlinkStreamingPipelineTranslator.applyStreamingTransform > (FlinkStreamingPipelineTranslator.java:139) > at > org.apache.beam.runners.flink.FlinkStreamingPipelineTranslator.visitPrimitiveTransform > (FlinkStreamingPipelineTranslator.java:118) > at org.apache.beam.sdk.runners.TransformHierarchy$Node.visit > (TransformHierarchy.java:670) > at org.apache.beam.sdk.runners.TransformHierarchy$Node.visit > (TransformHierarchy.java:647) > at org.apache.beam.sdk.runners.TransformHierarchy$Node.visit > (TransformHierarchy.java:623) > at org.apache.beam.sdk.runners.TransformHierarchy$Node.visit > (TransformHierarchy.java:623) > at org.apache.beam.sdk.runners.TransformHierarchy$Node.visit > (TransformHierarchy.java:647) > at org.apache.beam.sdk.runners.TransformHierarchy$Node.visit > (TransformHierarchy.java:662) > at org.apache.beam.sdk.runners.TransformHierarchy$Node.access$600 > (TransformHierarchy.java:311) > at org.apache.beam.sdk.runners.TransformHierarchy.visit > (TransformHierarchy.java:245) > at org.apache.beam.sdk.Pipeline.traverseTopologically (Pipeline.java:458) > at org.apache.beam.runners.flink.FlinkPipelineTranslator.translate > (FlinkPipelineTranslator.java:38) > at > org.apache.beam.runners.flink.FlinkStreamingPipelineTranslator.translate > (FlinkStreamingPipelineTranslator.java:70) > at > org.apache.beam.runners.flink.FlinkPipelineExecutionEnvironment.translate > (FlinkPipelineExecutionEnvironment.java:113) > at org.apache.beam.runners.flink.FlinkRunner.run (FlinkRunner.java:110) > at org.apache.beam.sdk.Pipeline.run (Pipeline.java:311) > at org.apache.beam.sdk.Pipeline.run (Pipeline.java:297) > at org.apache.beam.sdk.nexmark.NexmarkLauncher.run > (NexmarkLauncher.java:1139) > at org.apache.beam.sdk.nexmark.Main.runAll (Main.java:69) > at org.apache.beam.sdk.nexmark.Main.main (Main.java:301) > 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.codehaus.mojo.exec.ExecJavaMojo$1.run (ExecJavaMojo.java:294) > at java.lang.Thread.run (Thread.java:748) > {quote} > You can reproduce it quickly by running this command from the nexmark > directory: > {quote}mvn exec:java -Dexec.mainClass=org.apache.beam.sdk.nexmark.Main > -Pflink-runner "-Dexec.args=--runner=FlinkRunner --query=2 --streaming=true > --manageResources=false --monitorJobs=true" > {quote} -- This message was sent by Atlassian JIRA (v7.6.3#76005)