Dear all, I am trying to set up flink and after hours I still fail to make a simple program run even though I follow every recommended step in the tutorials.
My operating system is OSX (therefore everything was installed via brew) and I am using Maven as a build tool. I used the quick start script for scala to set up a new project. Then, I only did two things: 1) paced the code from word count object to the BatchJob.scala file (https://ci.apache.org/projects/flink/flink-docs-release-1.10/dev/batch/ <https://ci.apache.org/projects/flink/flink-docs-release-1.10/dev/batch/>) 2) alternated the MainClass in the pom.xml file from StreamJob to BatchJob Then, I build via "mvn clean package" and run the .jar. file. When compiling, I receive the following warning: ———————————————————————————————————————————————————————————————————— Expected all dependencies to require Scala version: 2.11.12 org.scala-lang:scala-reflect:2.11.12 requires scala version: 2.11.12 org.apache.flink:flink-scala_2.11:1.10.0 requires scala version: 2.11.12 org.apache.flink:flink-scala_2.11:1.10.0 requires scala version: 2.11.12 org.scala-lang:scala-compiler:2.11.12 requires scala version: 2.11.12 org.scala-lang.modules:scala-xml_2.11:1.0.5 requires scala version: 2.11.7 Multiple versions of scala libraries detected! ———————————————————————————————————————————————————————————————————— Which is weird, since the pom.xml file should keep all versions the same (at least the structures seems like it) and by playing around with the pom.xml file I could not prevent this warning. Either way, I could not find any information on the internet if the warning might be the reason for the error I am getting when running the jar file. The error I get when I run my .jar file is the following: ———————————————————————————————————————————————————————————————————— The program finished with the following exception: org.apache.flink.client.program.ProgramInvocationException: The main method caused an error: org.apache.flink.client.program.ProgramInvocationException: Job failed (JobID: 32d249e2b67ef0ecbc72bd164fe1dfb9) at org.apache.flink.client.program.PackagedProgram.callMainMethod(PackagedProgram.java:335) at org.apache.flink.client.program.PackagedProgram.invokeInteractiveModeForExecution(PackagedProgram.java:205) at org.apache.flink.client.ClientUtils.executeProgram(ClientUtils.java:138) at org.apache.flink.client.cli.CliFrontend.executeProgram(CliFrontend.java:662) at org.apache.flink.client.cli.CliFrontend.run(CliFrontend.java:210) at org.apache.flink.client.cli.CliFrontend.parseParameters(CliFrontend.java:893) at org.apache.flink.client.cli.CliFrontend.lambda$main$10(CliFrontend.java:966) at org.apache.flink.runtime.security.NoOpSecurityContext.runSecured(NoOpSecurityContext.java:30) at org.apache.flink.client.cli.CliFrontend.main(CliFrontend.java:966) Caused by: java.util.concurrent.ExecutionException: org.apache.flink.client.program.ProgramInvocationException: Job failed (JobID: 32d249e2b67ef0ecbc72bd164fe1dfb9) at java.util.concurrent.CompletableFuture.reportGet(CompletableFuture.java:357) at java.util.concurrent.CompletableFuture.get(CompletableFuture.java:1895) at org.apache.flink.client.program.ContextEnvironment.execute(ContextEnvironment.java:73) at org.apache.flink.api.java.ExecutionEnvironment.execute(ExecutionEnvironment.java:844) at org.apache.flink.api.java.DataSet.collect(DataSet.java:413) at org.apache.flink.api.java.DataSet.print(DataSet.java:1652) at org.apache.flink.api.scala.DataSet.print(DataSet.scala:1864) at org.myorg.quickstart.BatchJob$.main(BatchJob.scala:19) at org.myorg.quickstart.BatchJob.main(BatchJob.scala) 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.apache.flink.client.program.PackagedProgram.callMainMethod(PackagedProgram.java:321) ... 8 more Caused by: org.apache.flink.client.program.ProgramInvocationException: Job failed (JobID: 32d249e2b67ef0ecbc72bd164fe1dfb9) at org.apache.flink.client.deployment.ClusterClientJobClientAdapter.lambda$null$6(ClusterClientJobClientAdapter.java:112) at java.util.concurrent.CompletableFuture.uniApply(CompletableFuture.java:602) at java.util.concurrent.CompletableFuture$UniApply.tryFire(CompletableFuture.java:577) at java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:474) at java.util.concurrent.CompletableFuture.complete(CompletableFuture.java:1962) at org.apache.flink.client.program.rest.RestClusterClient.lambda$pollResourceAsync$21(RestClusterClient.java:565) at java.util.concurrent.CompletableFuture.uniWhenComplete(CompletableFuture.java:760) at java.util.concurrent.CompletableFuture$UniWhenComplete.tryFire(CompletableFuture.java:736) at java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:474) at java.util.concurrent.CompletableFuture.complete(CompletableFuture.java:1962) at org.apache.flink.runtime.concurrent.FutureUtils.lambda$retryOperationWithDelay$8(FutureUtils.java:291) at java.util.concurrent.CompletableFuture.uniWhenComplete(CompletableFuture.java:760) at java.util.concurrent.CompletableFuture$UniWhenComplete.tryFire(CompletableFuture.java:736) at java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:474) at java.util.concurrent.CompletableFuture.postFire(CompletableFuture.java:561) at java.util.concurrent.CompletableFuture$UniCompose.tryFire(CompletableFuture.java:929) at java.util.concurrent.CompletableFuture$Completion.run(CompletableFuture.java:442) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745) Caused by: org.apache.flink.runtime.client.JobExecutionException: Job execution failed. at org.apache.flink.runtime.jobmaster.JobResult.toJobExecutionResult(JobResult.java:147) at org.apache.flink.client.deployment.ClusterClientJobClientAdapter.lambda$null$6(ClusterClientJobClientAdapter.java:110) ... 19 more Caused by: org.apache.flink.runtime.JobException: Recovery is suppressed by NoRestartBackoffTimeStrategy at org.apache.flink.runtime.executiongraph.failover.flip1.ExecutionFailureHandler.handleFailure(ExecutionFailureHandler.java:110) at org.apache.flink.runtime.executiongraph.failover.flip1.ExecutionFailureHandler.getFailureHandlingResult(ExecutionFailureHandler.java:76) at org.apache.flink.runtime.scheduler.DefaultScheduler.handleTaskFailure(DefaultScheduler.java:192) at org.apache.flink.runtime.scheduler.DefaultScheduler.maybeHandleTaskFailure(DefaultScheduler.java:186) at org.apache.flink.runtime.scheduler.DefaultScheduler.updateTaskExecutionStateInternal(DefaultScheduler.java:180) at org.apache.flink.runtime.scheduler.SchedulerBase.updateTaskExecutionState(SchedulerBase.java:496) at org.apache.flink.runtime.jobmaster.JobMaster.updateTaskExecutionState(JobMaster.java:380) at sun.reflect.GeneratedMethodAccessor47.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleRpcInvocation(AkkaRpcActor.java:284) at org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleRpcMessage(AkkaRpcActor.java:199) at org.apache.flink.runtime.rpc.akka.FencedAkkaRpcActor.handleRpcMessage(FencedAkkaRpcActor.java:74) at org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleMessage(AkkaRpcActor.java:152) at akka.japi.pf.UnitCaseStatement.apply(CaseStatements.scala:26) at akka.japi.pf.UnitCaseStatement.apply(CaseStatements.scala:21) at scala.PartialFunction.applyOrElse(PartialFunction.scala:123) at scala.PartialFunction.applyOrElse$(PartialFunction.scala:122) at akka.japi.pf.UnitCaseStatement.applyOrElse(CaseStatements.scala:21) at scala.PartialFunction$OrElse.applyOrElse(PartialFunction.scala:171) at scala.PartialFunction$OrElse.applyOrElse(PartialFunction.scala:172) at scala.PartialFunction$OrElse.applyOrElse(PartialFunction.scala:172) at akka.actor.Actor.aroundReceive(Actor.scala:517) at akka.actor.Actor.aroundReceive$(Actor.scala:515) at akka.actor.AbstractActor.aroundReceive(AbstractActor.scala:225) at akka.actor.ActorCell.receiveMessage(ActorCell.scala:592) at akka.actor.ActorCell.invoke(ActorCell.scala:561) at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:258) at akka.dispatch.Mailbox.run(Mailbox.scala:225) at akka.dispatch.Mailbox.exec(Mailbox.scala:235) at akka.dispatch.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260) at akka.dispatch.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339) at akka.dispatch.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979) at akka.dispatch.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107) Caused by: java.lang.NoSuchMethodError: scala.Predef$.refArrayOps([Ljava/lang/Object;)Lscala/collection/mutable/ArrayOps; at org.myorg.quickstart.BatchJob$$anonfun$1.apply(BatchJob.scala:14) at org.myorg.quickstart.BatchJob$$anonfun$1.apply(BatchJob.scala:14) at org.apache.flink.api.scala.DataSet$$anon$5.flatMap(DataSet.scala:609) at org.apache.flink.runtime.operators.chaining.ChainedFlatMapDriver.collect(ChainedFlatMapDriver.java:80) at org.apache.flink.runtime.operators.util.metrics.CountingCollector.collect(CountingCollector.java:35) at org.apache.flink.runtime.operators.DataSourceTask.invoke(DataSourceTask.java:196) at org.apache.flink.runtime.taskmanager.Task.doRun(Task.java:708) at org.apache.flink.runtime.taskmanager.Task.run(Task.java:533) at java.lang.Thread.run(Thread.java:745) ———————————————————————————————————————————————————————————————————— I would be very glad, if some can help me out with this issue. Best, Tom
