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> 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 > > Best, > Xingbo > > Robert Cullen <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> >> 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> >>> 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> >>>> 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 >>>>> for the whole example. >>>>> >>>>> Best, >>>>> Shuiqiang >>>>> >>>>> Robert Cullen <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> >>>>>> 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': >>>>>>> '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> 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
