liupc opened a new pull request #9683: [FLINK-14037]Use same userCodeClassLoader as jobManager in jobClient to fix input/… URL: https://github.com/apache/flink/pull/9683 ## What is the purpose of the change When user include flink-shaded-hadoop-2 classes into user jar, and use a custom inputformat class which extending the hadoop inputformat(e.g. TeraInputFormat), then in current version, there will be a deserilization error. That's because the classloader in jobManager is childFirst(with a whitelist that always loaded by parent loader), however, the classloader in client is parentFirst. This PR is trying to keep the above two classloaders to be consistent, thus to avoid such odd serde exceptions. ``` Caused by: org.apache.flink.runtime.client.JobSubmissionException: Failed to submit JobGraph. at org.apache.flink.client.program.rest.RestClusterClient.lambda$submitJob$8(RestClusterClient.java:382) at java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:870) at java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:852) at java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:474) at java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1977) at org.apache.flink.runtime.concurrent.FutureUtils.lambda$retryOperationWithDelay$8(FutureUtils.java:263) at java.util.concurrent.CompletableFuture.uniWhenComplete(CompletableFuture.java:760) at java.util.concurrent.CompletableFuture$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:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748) Caused by: org.apache.flink.runtime.rest.util.RestClientException: [Internal server error., <Exception on server side: org.apache.flink.runtime.client.JobSubmissionException: Failed to submit job. at org.apache.flink.runtime.dispatcher.Dispatcher.lambda$internalSubmitJob$2(Dispatcher.java:333) at java.util.concurrent.CompletableFuture.uniHandle(CompletableFuture.java:822) at java.util.concurrent.CompletableFuture$UniHandle.tryFire(CompletableFuture.java:797) at java.util.concurrent.CompletableFuture$Completion.run(CompletableFuture.java:442) at akka.dispatch.TaskInvocation.run(AbstractDispatcher.scala:40) at akka.dispatch.ForkJoinExecutorConfigurator$AkkaForkJoinTask.exec(ForkJoinExecutorConfigurator.scala:44) at akka.dispatch.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260) at akka.dispatch.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339) at akka.dispatch.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979) at akka.dispatch.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107) Caused by: java.lang.RuntimeException: org.apache.flink.runtime.client.JobExecutionException: Could not set up JobManager at org.apache.flink.util.function.CheckedSupplier.lambda$unchecked$0(CheckedSupplier.java:36) at java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1590) ... 6 more Caused by: org.apache.flink.runtime.client.JobExecutionException: Could not set up JobManager at org.apache.flink.runtime.jobmaster.JobManagerRunner.<init>(JobManagerRunner.java:152) at org.apache.flink.runtime.dispatcher.DefaultJobManagerRunnerFactory.createJobManagerRunner(DefaultJobManagerRunnerFactory.java:83) at org.apache.flink.runtime.dispatcher.Dispatcher.lambda$createJobManagerRunner$5(Dispatcher.java:375) at org.apache.flink.util.function.CheckedSupplier.lambda$unchecked$0(CheckedSupplier.java:34) ... 7 more Caused by: org.apache.flink.runtime.client.JobExecutionException: Cannot initialize task 'DataSource (at org.apache.flink.api.scala.ExecutionEnvironment.createInput(ExecutionEnvironment.scala:390) (org.apache.flink.api.scala.hadoop.mapreduce.HadoopInpu)': Loading the input/output formats failed: org.apache.flink.api.scala.hadoop.mapreduce.HadoopInputFormat@2e179f3e at org.apache.flink.runtime.executiongraph.ExecutionGraphBuilder.buildGraph(ExecutionGraphBuilder.java:218) at org.apache.flink.runtime.executiongraph.ExecutionGraphBuilder.buildGraph(ExecutionGraphBuilder.java:106) at org.apache.flink.runtime.scheduler.LegacyScheduler.createExecutionGraph(LegacyScheduler.java:207) at org.apache.flink.runtime.scheduler.LegacyScheduler.createAndRestoreExecutionGraph(LegacyScheduler.java:184) at org.apache.flink.runtime.scheduler.LegacyScheduler.<init>(LegacyScheduler.java:176) at org.apache.flink.runtime.scheduler.LegacySchedulerFactory.createInstance(LegacySchedulerFactory.java:70) at org.apache.flink.runtime.jobmaster.JobMaster.createScheduler(JobMaster.java:275) at org.apache.flink.runtime.jobmaster.JobMaster.<init>(JobMaster.java:265) at org.apache.flink.runtime.jobmaster.factories.DefaultJobMasterServiceFactory.createJobMasterService(DefaultJobMasterServiceFactory.java:98) at org.apache.flink.runtime.jobmaster.factories.DefaultJobMasterServiceFactory.createJobMasterService(DefaultJobMasterServiceFactory.java:40) at org.apache.flink.runtime.jobmaster.JobManagerRunner.<init>(JobManagerRunner.java:146) ... 10 more Caused by: java.lang.Exception: Loading the input/output formats failed: org.apache.flink.api.scala.hadoop.mapreduce.HadoopInputFormat@2e179f3e at org.apache.flink.runtime.jobgraph.InputOutputFormatVertex.initInputOutputformatContainer(InputOutputFormatVertex.java:156) at org.apache.flink.runtime.jobgraph.InputOutputFormatVertex.initializeOnMaster(InputOutputFormatVertex.java:60) at org.apache.flink.runtime.executiongraph.ExecutionGraphBuilder.buildGraph(ExecutionGraphBuilder.java:214) ... 20 more Caused by: java.lang.RuntimeException: Deserializing the input/output formats failed: unread block data at org.apache.flink.runtime.jobgraph.InputOutputFormatContainer.<init>(InputOutputFormatContainer.java:68) at org.apache.flink.runtime.jobgraph.InputOutputFormatVertex.initInputOutputformatContainer(InputOutputFormatVertex.java:153) ... 22 more Caused by: java.lang.IllegalStateException: unread block data at java.io.ObjectInputStream$BlockDataInputStream.setBlockDataMode(ObjectInputStream.java:2783) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1605) at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2287) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:2211) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2069) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1573) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:431) at org.apache.flink.util.InstantiationUtil.deserializeObject(InstantiationUtil.java:576) at org.apache.flink.util.InstantiationUtil.deserializeObject(InstantiationUtil.java:562) at org.apache.flink.util.InstantiationUtil.deserializeObject(InstantiationUtil.java:550) at org.apache.flink.util.InstantiationUtil.readObjectFromConfig(InstantiationUtil.java:511) at org.apache.flink.runtime.operators.util.TaskConfig.getStubWrapper(TaskConfig.java:288) at org.apache.flink.runtime.jobgraph.InputOutputFormatContainer.<init>(InputOutputFormatContainer.java:66) ... 23 more End of exception on server side>] at org.apache.flink.runtime.rest.RestClient.parseResponse(RestClient.java:389) at org.apache.flink.runtime.rest.RestClient.lambda$submitRequest$3(RestClient.java:373) at java.util.concurrent.CompletableFuture.uniCompose(CompletableFuture.java:952) at java.util.concurrent.CompletableFuture$UniCompose.tryFire(CompletableFuture.java:926) ``` ## Brief change log - *Modify client userCodeClassLoader to keep the classloader consistent both in client and jobManager* ## Verifying this change This change is already covered by existing tests, such as *ClassLoaderITCase/PackageProgramTest*. ## Does this pull request potentially affect one of the following parts: - Dependencies (does it add or upgrade a dependency): (no) - The public API, i.e., is any changed class annotated with `@Public(Evolving)`: (no) - The serializers: (no) - The runtime per-record code paths (performance sensitive): (no) - Anything that affects deployment or recovery: JobManager (and its components), Checkpointing, Yarn/Mesos, ZooKeeper: (no) - The S3 file system connector: (no) ## Documentation - Does this pull request introduce a new feature? ( no)
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