I think you want to submit a Flink python job to the existing session cluster. Please ensure the session cluster is created with proper service exposed type[1]. * LoadBalancer for the cloud environment * NodePort for self managed K8s cluster * ClusterIP for the K8s internal submission, which means you should submit the Flink application in the K8s cluster. This could be done by starting a pod as the Flink client.
[1]. https://ci.apache.org/projects/flink/flink-docs-master/docs/deployment/resource-providers/native_kubernetes/#accessing-flinks-web-ui Best, Yang Robert Cullen <cinquate...@gmail.com> 于2021年3月6日周六 上午12:43写道： > Trying to spin up a Python Flink instance in my Kubernetes cluster with > this configuration ... > > sudo ./bin/flink run \ > --target kubernetes-session \ > -Dkubernetes.cluster-id=flink-python \ > -Dkubernetes.namespace=cmdaa \ > -Dkubernetes.container.image=cmdaa/pyflink:0.0.1 \ > --pyModule word_count \ > --pyFiles /opt/flink-1.12.2/examples/python/table/batch/word_count.py > > ... But getting this error: > > Traceback (most recent call last): > File "/Users/admin/.pyenv/versions/3.6.10/lib/python3.6/runpy.py", line > 193, in _run_module_as_main > "__main__", mod_spec) > File "/Users/admin/.pyenv/versions/3.6.10/lib/python3.6/runpy.py", line 85, > in _run_code > exec(code, run_globals) > File > "/var/folders/zz/zyxvpxvq6csfxvn_n0000000000000/T/pyflink/074c581c-5b39-4b07-ac84-55a86c46f9eb/affe3559-5364-43f1-93ef-b7f6cd9a2f77/word_count.py", > line 80, in <module> > word_count() > File > "/var/folders/zz/zyxvpxvq6csfxvn_n0000000000000/T/pyflink/074c581c-5b39-4b07-ac84-55a86c46f9eb/affe3559-5364-43f1-93ef-b7f6cd9a2f77/word_count.py", > line 74, in word_count > t_env.execute("word_count") > File > "/opt/flink-1.12.2/opt/python/pyflink.zip/pyflink/table/table_environment.py", > line 1276, in execute > File > "/opt/flink-1.12.2/opt/python/py4j-0.10.8.1-src.zip/py4j/java_gateway.py", > line 1286, in __call__ > File "/opt/flink-1.12.2/opt/python/pyflink.zip/pyflink/util/exceptions.py", > line 147, in deco > File "/opt/flink-1.12.2/opt/python/py4j-0.10.8.1-src.zip/py4j/protocol.py", > line 328, in get_return_value > py4j.protocol.Py4JJavaError: An error occurred while calling o2.execute. > : java.lang.RuntimeException: > org.apache.flink.client.deployment.ClusterRetrieveException: Could not get > the rest endpoint of flink-python > at > org.apache.flink.kubernetes.KubernetesClusterDescriptor.lambda$createClusterClientProvider$0(KubernetesClusterDescriptor.java:102) > at > org.apache.flink.kubernetes.KubernetesClusterDescriptor.retrieve(KubernetesClusterDescriptor.java:145) > at > org.apache.flink.kubernetes.KubernetesClusterDescriptor.retrieve(KubernetesClusterDescriptor.java:66) > at > org.apache.flink.client.deployment.executors.AbstractSessionClusterExecutor.execute(AbstractSessionClusterExecutor.java:75) > at > org.apache.flink.table.api.internal.BatchTableEnvImpl.executePipeline(BatchTableEnvImpl.scala:347) > at > org.apache.flink.table.api.internal.BatchTableEnvImpl.execute(BatchTableEnvImpl.scala:317) > 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.api.python.shaded.py4j.reflection.MethodInvoker.invoke(MethodInvoker.java:244) > at > org.apache.flink.api.python.shaded.py4j.reflection.ReflectionEngine.invoke(ReflectionEngine.java:357) > at > org.apache.flink.api.python.shaded.py4j.Gateway.invoke(Gateway.java:282) > at > org.apache.flink.api.python.shaded.py4j.commands.AbstractCommand.invokeMethod(AbstractCommand.java:132) > at > org.apache.flink.api.python.shaded.py4j.commands.CallCommand.execute(CallCommand.java:79) > at > org.apache.flink.api.python.shaded.py4j.GatewayConnection.run(GatewayConnection.java:238) > at java.lang.Thread.run(Thread.java:748) > Caused by: org.apache.flink.client.deployment.ClusterRetrieveException: Could > not get the rest endpoint of flink-python > ... 17 more > > org.apache.flink.client.program.ProgramAbortException > at org.apache.flink.client.python.PythonDriver.main(PythonDriver.java:124) > 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:349) > at > org.apache.flink.client.program.PackagedProgram.invokeInteractiveModeForExecution(PackagedProgram.java:219) > at > org.apache.flink.client.ClientUtils.executeProgram(ClientUtils.java:114) > at > org.apache.flink.client.cli.CliFrontend.executeProgram(CliFrontend.java:812) > at org.apache.flink.client.cli.CliFrontend.run(CliFrontend.java:246) > at > org.apache.flink.client.cli.CliFrontend.parseAndRun(CliFrontend.java:1054) > at > org.apache.flink.client.cli.CliFrontend.lambda$main$10(CliFrontend.java:1132) > at > org.apache.flink.runtime.security.contexts.NoOpSecurityContext.runSecured(NoOpSecurityContext.java:28) > at org.apache.flink.client.cli.CliFrontend.main(CliFrontend.java:1132) > > -- > Robert Cullen > 240-475-4490 >
