Hi All??
?????????????????? k8s ???????????????????? flink on k8s native ?????????????????????????????????????????????????????????????????????? ???????? k8s v1.18.16 flink flink-1.12.2 java openjdk version "11" 2018-09-25 ?????????????????????? 1??Kubernetes >= 1.9 ???? 2?????????? ???? 3?????? Kubernetes DNS ???? 4??default service account with RBAC permissions to create, delete pods ???????????????? ?????????????????????????????????????? kubectl create namespace flink-session-cluster kubectl create serviceaccount flink -n flink-session-cluster kubectl create clusterrolebinding flink-role-binding-flink \ --clusterrole=edit \ --serviceaccount=flink-session-cluster:flink ???????? session ?????? flink ???? 3.1 ????session ???? ./bin/kubernetes-session.sh -Dkubernetes.cluster-id=my-first-flink-cluster \ > -Dkubernetes.namespace=flink-session-cluster \ > -Dkubernetes.jobmanager.service-account=flink \ > -Dkubernetes.service.exposed.type=NodePort ?????? 3.2 ????flink ???? ?????? ./bin/flink run \ > --target kubernetes-session \ > -Dkubernetes.namespace=flink-session-cluster \ > -Dkubernetes.cluster-id=my-first-flink-cluster \ > -Dkubernetes.jobmanager.service-account=flink \ > ./examples/streaming/TopSpeedWindowing.jar ?????????????? Executing TopSpeedWindowing example with default input data set. Use --input to specify file input. Printing result to stdout. Use --output to specify output path. WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by org.apache.flink.api.java.ClosureCleaner (file:/home/dsi/soft/flink/flink-1.12.2/lib/flink-dist_2.11-1.12.2.jar) to field java.lang.String.value WARNING: Please consider reporting this to the maintainers of org.apache.flink.api.java.ClosureCleaner WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release 2021-05-12 15:51:30,453 INFO org.apache.flink.kubernetes.KubernetesClusterDescriptor [] - Retrieve flink cluster my-first-flink-cluster successfully, JobManager Web Interface: http://10.199.252.101:8081 ------------------------------------------------------------ The program finished with the following exception: org.apache.flink.client.program.ProgramInvocationException: The main method caused an error: Failed to execute job 'CarTopSpeedWindowingExample'. at org.apache.flink.client.program.PackagedProgram.callMainMethod(PackagedProgram.java:366) 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$10(CliFrontend.java:1132) at org.apache.flink.runtime.security.contexts.NoOpSecurityContext.runSecured(NoOpSecurityContext.java:28) at org.apache.flink.client.cli.CliFrontend.main(CliFrontend.java:1132) Caused by: org.apache.flink.util.FlinkException: Failed to execute job 'CarTopSpeedWindowingExample'. at org.apache.flink.streaming.api.environment.StreamExecutionEnvironment.executeAsync(StreamExecutionEnvironment.java:1918) at org.apache.flink.client.program.StreamContextEnvironment.executeAsync(StreamContextEnvironment.java:135) at org.apache.flink.client.program.StreamContextEnvironment.execute(StreamContextEnvironment.java:76) at org.apache.flink.streaming.api.environment.StreamExecutionEnvironment.execute(StreamExecutionEnvironment.java:1782) at org.apache.flink.streaming.examples.windowing.TopSpeedWindowing.main(TopSpeedWindowing.java:99) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:566) at org.apache.flink.client.program.PackagedProgram.callMainMethod(PackagedProgram.java:349) ... 8 more Caused by: org.apache.flink.runtime.client.JobSubmissionException: Failed to submit JobGraph. at org.apache.flink.client.program.rest.RestClusterClient.lambda$submitJob$7(RestClusterClient.java:400) at java.base/java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:986) at java.base/java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:970) at java.base/java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:506) at java.base/java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:2088) at org.apache.flink.runtime.concurrent.FutureUtils.lambda$retryOperationWithDelay$9(FutureUtils.java:390) at java.base/java.util.concurrent.CompletableFuture.uniWhenComplete(CompletableFuture.java:859) at java.base/java.util.concurrent.CompletableFuture$UniWhenComplete.tryFire(CompletableFuture.java:837) at java.base/java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:506) at java.base/java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:2088) at org.apache.flink.runtime.rest.RestClient.lambda$submitRequest$1(RestClient.java:430) at org.apache.flink.shaded.netty4.io.netty.util.concurrent.DefaultPromise.notifyListener0(DefaultPromise.java:577) at org.apache.flink.shaded.netty4.io.netty.util.concurrent.DefaultPromise.notifyListeners0(DefaultPromise.java:570) at org.apache.flink.shaded.netty4.io.netty.util.concurrent.DefaultPromise.notifyListenersNow(DefaultPromise.java:549) at org.apache.flink.shaded.netty4.io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:490) at org.apache.flink.shaded.netty4.io.netty.util.concurrent.DefaultPromise.setValue0(DefaultPromise.java:615) at org.apache.flink.shaded.netty4.io.netty.util.concurrent.DefaultPromise.setFailure0(DefaultPromise.java:608) at org.apache.flink.shaded.netty4.io.netty.util.concurrent.DefaultPromise.tryFailure(DefaultPromise.java:117) at org.apache.flink.shaded.netty4.io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.fulfillConnectPromise(AbstractNioChannel.java:321) at org.apache.flink.shaded.netty4.io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:337) at org.apache.flink.shaded.netty4.io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:702) at org.apache.flink.shaded.netty4.io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:650) at org.apache.flink.shaded.netty4.io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:576) at org.apache.flink.shaded.netty4.io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:493) at org.apache.flink.shaded.netty4.io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:989) at org.apache.flink.shaded.netty4.io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) at java.base/java.lang.Thread.run(Thread.java:834) Caused by: org.apache.flink.runtime.concurrent.FutureUtils$RetryException: Could not complete the operation. Number of retries has been exhausted. at org.apache.flink.runtime.concurrent.FutureUtils.lambda$retryOperationWithDelay$9(FutureUtils.java:386) ... 21 more Caused by: java.util.concurrent.CompletionException: org.apache.flink.shaded.netty4.io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection refused: /10.199.252.101:8081 at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:331) at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:346) at java.base/java.util.concurrent.CompletableFuture$UniCompose.tryFire(CompletableFuture.java:1063) ... 19 more Caused by: org.apache.flink.shaded.netty4.io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection refused: /10.199.252.101:8081 Caused by: java.net.ConnectException: Connection refused at java.base/sun.nio.ch.SocketChannelImpl.checkConnect(Native Method) at java.base/sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:779) at org.apache.flink.shaded.netty4.io.netty.channel.socket.nio.NioSocketChannel.doFinishConnect(NioSocketChannel.java:330) at org.apache.flink.shaded.netty4.io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:334) at org.apache.flink.shaded.netty4.io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:702) at org.apache.flink.shaded.netty4.io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:650) at org.apache.flink.shaded.netty4.io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:576) at org.apache.flink.shaded.netty4.io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:493) at org.apache.flink.shaded.netty4.io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:989) at org.apache.flink.shaded.netty4.io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) at java.base/java.lang.Thread.run(Thread.java:834) Best?? Luke Yan
