Does the job runs in detached mode or attached mode? Could you share some code snippets and the job submission command if possible?
Regards, Dian > 2021年3月18日 下午8:17，Robert Cullen <cinquate...@gmail.com> 写道： > > Dian, > > Thanks for your reply. Yes, I would submit the same job in kubernetes > session mode. Sometimes the job would succeed but successive tries would > fail. No stack trace, the job would never return a job id: > > In this case I redeployed the cluster and the job completed ... and multiple > tries were successful. > > > On Thu, Mar 18, 2021 at 4:36 AM Dian Fu <dian0511...@gmail.com > <mailto:dian0511...@gmail.com>> wrote: > Hi Robert, > > 1) Do you mean that when submitting the same job multiple times and it > succeed sometimes and hangs sometimes or it only hangs for some specific job? > 2) Which deployment mode do you use? > 3) Is it possible to dump the stack trace? It would help us understanding > what’s happening. > > Thanks, > Dian > >> 2021年3月16日 下午11:51，Robert Cullen <cinquate...@gmail.com >> <mailto:cinquate...@gmail.com>> 写道： >> >> Thanks All, >> >> I've added python and pyflink to the TM image which fixed the problem. Now >> however submitting a python script to the cluster successfully is sporadic; >> sometimes it completes but most of the time it just hangs. Not sure what is >> causing this. >> >> On Mon, Mar 15, 2021 at 9:47 PM Xingbo Huang <hxbks...@gmail.com >> <mailto:hxbks...@gmail.com>> wrote: >> Hi, >> >> From the error message, I think the problem is no python interpreter on your >> TaskManager machine. You need to install a python 3.5+ interpreter on the TM >> machine, and this python environment needs to install pyflink (pip install >> apache-flink). For details, you can refer to the document[1]. >> >> [1] >> https://ci.apache.org/projects/flink/flink-docs-release-1.12/dev/python/installation.html >> >> <https://ci.apache.org/projects/flink/flink-docs-release-1.12/dev/python/installation.html> >> >> Best, >> Xingbo >> >> Robert Cullen <cinquate...@gmail.com <mailto:cinquate...@gmail.com>> >> 于2021年3月16日周二 上午2:58写道： >> Okay, I added the jars and fixed that exception. However I have a new >> exception that is harder to decipher: >> >> 2021-03-15 14:46:20 >> org.apache.flink.runtime.JobException: Recovery is suppressed by >> NoRestartBackoffTimeStrategy >> at >> org.apache.flink.runtime.executiongraph.failover.flip1.ExecutionFailureHandler.handleFailure(ExecutionFailureHandler.java:116) >> at >> org.apache.flink.runtime.executiongraph.failover.flip1.ExecutionFailureHandler.getFailureHandlingResult(ExecutionFailureHandler.java:78) >> at >> org.apache.flink.runtime.scheduler.DefaultScheduler.handleTaskFailure(DefaultScheduler.java:224) >> at >> org.apache.flink.runtime.scheduler.DefaultScheduler.maybeHandleTaskFailure(DefaultScheduler.java:217) >> at >> org.apache.flink.runtime.scheduler.DefaultScheduler.updateTaskExecutionStateInternal(DefaultScheduler.java:208) >> at >> org.apache.flink.runtime.scheduler.SchedulerBase.updateTaskExecutionState(SchedulerBase.java:610) >> at >> org.apache.flink.runtime.scheduler.SchedulerNG.updateTaskExecutionState(SchedulerNG.java:89) >> at >> org.apache.flink.runtime.jobmaster.JobMaster.updateTaskExecutionState(JobMaster.java:419) >> 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.runtime.rpc.akka.AkkaRpcActor.handleRpcInvocation(AkkaRpcActor.java:286) >> at >> org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleRpcMessage(AkkaRpcActor.java:201) >> at >> org.apache.flink.runtime.rpc.akka.FencedAkkaRpcActor.handleRpcMessage(FencedAkkaRpcActor.java:74) >> at >> org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleMessage(AkkaRpcActor.java:154) >> 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.io.IOException: Cannot run program "python": error=2, No >> such file or directory >> at java.lang.ProcessBuilder.start(ProcessBuilder.java:1048) >> at >> org.apache.flink.python.util.PythonEnvironmentManagerUtils.execute(PythonEnvironmentManagerUtils.java:181) >> at >> org.apache.flink.python.util.PythonEnvironmentManagerUtils.getPythonUdfRunnerScript(PythonEnvironmentManagerUtils.java:141) >> at >> org.apache.flink.python.env.beam.ProcessPythonEnvironmentManager.createEnvironment(ProcessPythonEnvironmentManager.java:181) >> at >> org.apache.flink.streaming.api.runners.python.beam.BeamPythonFunctionRunner.createPythonExecutionEnvironment(BeamPythonFunctionRunner.java:340) >> at >> org.apache.flink.streaming.api.runners.python.beam.BeamPythonFunctionRunner.lambda$open$0(BeamPythonFunctionRunner.java:259) >> at >> org.apache.flink.runtime.memory.MemoryManager.lambda$getSharedMemoryResourceForManagedMemory$5(MemoryManager.java:512) >> at >> org.apache.flink.runtime.memory.SharedResources.createResource(SharedResources.java:130) >> at >> org.apache.flink.runtime.memory.SharedResources.getOrAllocateSharedResource(SharedResources.java:72) >> at >> org.apache.flink.runtime.memory.MemoryManager.getSharedMemoryResourceForManagedMemory(MemoryManager.java:522) >> at >> org.apache.flink.streaming.api.runners.python.beam.BeamPythonFunctionRunner.open(BeamPythonFunctionRunner.java:262) >> at >> org.apache.flink.streaming.api.operators.python.AbstractPythonFunctionOperator.open(AbstractPythonFunctionOperator.java:123) >> at >> org.apache.flink.streaming.api.operators.python.PythonKeyedProcessOperator.open(PythonKeyedProcessOperator.java:198) >> at >> org.apache.flink.streaming.runtime.tasks.OperatorChain.initializeStateAndOpenOperators(OperatorChain.java:401) >> at >> org.apache.flink.streaming.runtime.tasks.StreamTask.lambda$beforeInvoke$2(StreamTask.java:507) >> at >> org.apache.flink.streaming.runtime.tasks.StreamTaskActionExecutor$1.runThrowing(StreamTaskActionExecutor.java:47) >> at >> org.apache.flink.streaming.runtime.tasks.StreamTask.beforeInvoke(StreamTask.java:501) >> at >> org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:531) >> at org.apache.flink.runtime.taskmanager.Task.doRun(Task.java:722) >> at org.apache.flink.runtime.taskmanager.Task.run(Task.java:547) >> at java.lang.Thread.run(Thread.java:748) >> Caused by: java.io.IOException: error=2, No such file or directory >> at java.lang.UNIXProcess.forkAndExec(Native Method) >> at java.lang.UNIXProcess.<init>(UNIXProcess.java:247) >> at java.lang.ProcessImpl.start(ProcessImpl.java:134) >> at java.lang.ProcessBuilder.start(ProcessBuilder.java:1029) >> ... 20 more >> >> On Mon, Mar 15, 2021 at 10:49 AM Robert Metzger <rmetz...@apache.org >> <mailto:rmetz...@apache.org>> wrote: >> Hey, >> are you sure the class is in the lib/ folder of all machines / instances, >> and you've restarted Flink after adding the files to lib/ ? >> >> On Mon, Mar 15, 2021 at 3:42 PM Robert Cullen <cinquate...@gmail.com >> <mailto:cinquate...@gmail.com>> wrote: >> Shuiqiang, >> >> I added the flink-connector-kafka_2-12 jar to the /opt/flink/lib directory >> >> When submitting this job to my flink cluster I’m getting this stack trace at >> runtime: >> >> org.apache.flink.runtime.JobException: Recovery is suppressed by >> NoRestartBackoffTimeStrategy >> at >> org.apache.flink.runtime.executiongraph.failover.flip1.ExecutionFailureHandler.handleFailure(ExecutionFailureHandler.java:116) >> at >> org.apache.flink.runtime.executiongraph.failover.flip1.ExecutionFailureHandler.getFailureHandlingResult(ExecutionFailureHandler.java:78) >> at >> org.apache.flink.runtime.scheduler.DefaultScheduler.handleTaskFailure(DefaultScheduler.java:224) >> at >> org.apache.flink.runtime.scheduler.DefaultScheduler.maybeHandleTaskFailure(DefaultScheduler.java:217) >> at >> org.apache.flink.runtime.scheduler.DefaultScheduler.updateTaskExecutionStateInternal(DefaultScheduler.java:208) >> at >> org.apache.flink.runtime.scheduler.SchedulerBase.updateTaskExecutionState(SchedulerBase.java:610) >> at >> org.apache.flink.runtime.scheduler.SchedulerNG.updateTaskExecutionState(SchedulerNG.java:89) >> at >> org.apache.flink.runtime.jobmaster.JobMaster.updateTaskExecutionState(JobMaster.java:419) >> at sun.reflect.GeneratedMethodAccessor71.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:286) >> at >> org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleRpcMessage(AkkaRpcActor.java:201) >> at >> org.apache.flink.runtime.rpc.akka.FencedAkkaRpcActor.handleRpcMessage(FencedAkkaRpcActor.java:74) >> at >> org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleMessage(AkkaRpcActor.java:154) >> 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: org.apache.flink.streaming.runtime.tasks.StreamTaskException: >> Cannot load user class: >> org.apache.flink.streaming.connectors.kafka.FlinkKafkaProducer >> ClassLoader info: URL ClassLoader: >> Class not resolvable through given classloader. >> at >> org.apache.flink.streaming.api.graph.StreamConfig.getStreamOperatorFactory(StreamConfig.java:322) >> at >> org.apache.flink.streaming.runtime.tasks.OperatorChain.createOperator(OperatorChain.java:614) >> at >> org.apache.flink.streaming.runtime.tasks.OperatorChain.createOperatorChain(OperatorChain.java:583) >> at >> org.apache.flink.streaming.runtime.tasks.OperatorChain.createOutputCollector(OperatorChain.java:526) >> at >> org.apache.flink.streaming.runtime.tasks.OperatorChain.<init>(OperatorChain.java:164) >> at >> org.apache.flink.streaming.runtime.tasks.StreamTask.beforeInvoke(StreamTask.java:485) >> at >> org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:531) >> at org.apache.flink.runtime.taskmanager.Task.doRun(Task.java:722) >> at org.apache.flink.runtime.taskmanager.Task.run(Task.java:547) >> at java.lang.Thread.run(Thread.java:748) >> Caused by: java.lang.ClassNotFoundException: >> org.apache.flink.streaming.connectors.kafka.FlinkKafkaProducer >> at java.net.URLClassLoader.findClass(URLClassLoader.java:382) >> at java.lang.ClassLoader.loadClass(ClassLoader.java:418) >> at >> org.apache.flink.util.FlinkUserCodeClassLoader.loadClassWithoutExceptionHandling(FlinkUserCodeClassLoader.java:63) >> at >> org.apache.flink.util.ChildFirstClassLoader.loadClassWithoutExceptionHandling(ChildFirstClassLoader.java:63) >> at >> org.apache.flink.util.FlinkUserCodeClassLoader.loadClass(FlinkUserCodeClassLoader.java:49) >> at java.lang.ClassLoader.loadClass(ClassLoader.java:351) >> at >> org.apache.flink.runtime.execution.librarycache.FlinkUserCodeClassLoaders$SafetyNetWrapperClassLoader.loadClass(FlinkUserCodeClassLoaders.java:168) >> at java.lang.Class.forName0(Native Method) >> at java.lang.Class.forName(Class.java:348) >> at >> org.apache.flink.util.InstantiationUtil$ClassLoaderObjectInputStream.resolveClass(InstantiationUtil.java:78) >> at >> java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1986) >> at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1850) >> at >> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2160) >> at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1667) >> at >> java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2405) >> at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:2329) >> at >> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2187) >> at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1667) >> at >> java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2405) >> at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:2329) >> at >> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2187) >> at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1667) >> at java.io.ObjectInputStream.readObject(ObjectInputStream.java:503) >> at java.io.ObjectInputStream.readObject(ObjectInputStream.java:461) >> 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.streaming.api.graph.StreamConfig.getStreamOperatorFactory(StreamConfig.java:310) >> ... 9 more >> >> On Sat, Mar 13, 2021 at 12:13 AM Shuiqiang Chen <acqua....@gmail.com >> <mailto:acqua....@gmail.com>> wrote: >> Hi Robert, >> >> You can refer to >> https://github.com/apache/flink/blob/master/flink-end-to-end-tests/flink-python-test/python/datastream/data_stream_job.py >> >> <https://github.com/apache/flink/blob/master/flink-end-to-end-tests/flink-python-test/python/datastream/data_stream_job.py> >> for the whole example. >> >> Best, >> Shuiqiang >> >> Robert Cullen <cinquate...@gmail.com <mailto:cinquate...@gmail.com>> >> 于2021年3月13日周六 上午4:01写道： >> Shuiqiang, Can you include the import statements? thanks. >> >> On Fri, Mar 12, 2021 at 1:48 PM Shuiqiang Chen <acqua....@gmail.com >> <mailto:acqua....@gmail.com>> wrote: >> Hi Robert, >> >> Kafka Connector is provided in Python DataStream API since release-1.12.0. >> And the documentation for it is lacking, we will make it up soon. >> >> The following code shows how to apply KafkaConsumers and KafkaProducer: >> ``` >> env = StreamExecutionEnvironment.get_execution_environment() >> env.set_parallelism(1) >> env.set_stream_time_characteristic(TimeCharacteristic.EventTime) >> >> # define the schema of the message from kafka, here the data is in json >> format. >> type_info = Types.ROW_NAMED(['createTime', 'orderId', 'payAmount', >> 'payPlatform', 'provinceId'], >> [Types.LONG(), Types.LONG(), Types.DOUBLE(), Types.INT(), >> Types.INT()]) >> json_row_schema = >> JsonRowDeserializationSchema.builder().type_info(type_info).build() >> >> # define the kafka connection properties. >> kafka_props = {'bootstrap.servers': 'localhost:9092', 'group.id >> <http://group.id/>': 'pyflink-e2e-source'} >> >> # create the KafkaConsumer and KafkaProducer with the specified topic name, >> serialization/deserialization schema and properties. >> kafka_consumer = FlinkKafkaConsumer("timer-stream-source", json_row_schema, >> kafka_props) >> kafka_producer = FlinkKafkaProducer("timer-stream-sink", >> SimpleStringSchema(), kafka_props) >> >> # set the kafka source to consume data from earliest offset. >> kafka_consumer.set_start_from_earliest() >> >> # create a DataStream from kafka consumer source >> ds = env.add_source(kafka_consumer) >> >> result_stream = ... >> >> # write the result into kafka by a kafka producer sink. >> result_stream.add_sink(kafka_producer) >> ``` >> >> Best, >> Shuiqiang >> >> Robert Cullen <cinquate...@gmail.com <mailto:cinquate...@gmail.com>> >> 于2021年3月13日周六 上午12:56写道： >> I’ve scoured the web looking for an example of using a Kafka source for a >> DataStream in python. Can someone finish this example? >> >> env = StreamExecutionEnvironment.get_execution_environment() >> env.set_parallelism(1) >> ds = env.from_collection( KAFKA_SOURCE ) >> ... >> -- >> Robert Cullen >> 240-475-4490 >> >> >> -- >> Robert Cullen >> 240-475-4490 >> >> >> -- >> Robert Cullen >> 240-475-4490 >> >> >> -- >> Robert Cullen >> 240-475-4490 >> >> >> -- >> Robert Cullen >> 240-475-4490 > > > > -- > Robert Cullen > 240-475-4490
