Hi 卓宇， 如exception中提到的：Connection refused: rancher-test.ziroom.com/10.30.238.18:8081 <http://rancher-test.ziroom.com/10.30.238.18:8081>。由于session cluster地址不可访问所以job graph提交失败了。一般原因是由于Kubernetes集群存在网络隔离，需要适当的设置service才能访问和提交job。
请问你是如何设置的你的session cluster呢，可以访问UI吗？ 你的参数kubernetes.rest-service.exposed.type设置的是什么？ 你使用Flink的版本又是什么呢？ > On 14 Apr 2022, at 9:25 AM, 陈卓宇 <2572805...@qq.com.INVALID> wrote: > > 按照官方文档进行以下操作： > # (1) Start Kubernetes session $ ./bin/kubernetes-session.sh > -Dkubernetes.cluster-id=my-first-flink-cluster # (2) Submit example job $ > ./bin/flink run \ --target kubernetes-session \ > -Dkubernetes.cluster-id=my-first-flink-cluster \ > ./examples/streaming/TopSpeedWindowing.jar > 报错：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:360) > at > org.apache.flink.client.program.PackagedProgram.invokeInteractiveModeForExecution(PackagedProgram.java:213) > at > org.apache.flink.client.ClientUtils.executeProgram(ClientUtils.java:114) > at > org.apache.flink.client.cli.CliFrontend.executeProgram(CliFrontend.java:816) > at > org.apache.flink.client.cli.CliFrontend.run(CliFrontend.java:248) > at > org.apache.flink.client.cli.CliFrontend.parseAndRun(CliFrontend.java:1058) > at > org.apache.flink.client.cli.CliFrontend.lambda$main$10(CliFrontend.java:1136) > at > org.apache.flink.runtime.security.contexts.NoOpSecurityContext.runSecured(NoOpSecurityContext.java:28) > at > org.apache.flink.client.cli.CliFrontend.main(CliFrontend.java:1136) > Caused by: org.apache.flink.util.FlinkException: Failed to execute job > 'CarTopSpeedWindowingExample'. > at > org.apache.flink.streaming.api.environment.StreamExecutionEnvironment.executeAsync(StreamExecutionEnvironment.java:1918) > at > org.apache.flink.client.program.StreamContextEnvironment.executeAsync(StreamContextEnvironment.java:135) > at > org.apache.flink.client.program.StreamContextEnvironment.execute(StreamContextEnvironment.java:76) > at > org.apache.flink.streaming.api.environment.StreamExecutionEnvironment.execute(StreamExecutionEnvironment.java:1782) > at > org.apache.flink.streaming.examples.windowing.TopSpeedWindowing.main(TopSpeedWindowing.java:99) > at > sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) > at java.lang.reflect.Method.invoke(Method.java:498) > at > org.apache.flink.client.program.PackagedProgram.callMainMethod(PackagedProgram.java:343) > ... 8 more > Caused by: org.apache.flink.runtime.client.JobSubmissionException: Failed to > submit JobGraph. > at > org.apache.flink.client.program.rest.RestClusterClient.lambda$submitJob$7(RestClusterClient.java:400) > at > java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884) > at > java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866) > at > java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) > at > java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990) > at > org.apache.flink.runtime.concurrent.FutureUtils.lambda$retryOperationWithDelay$9(FutureUtils.java:390) > at > java.util.concurrent.CompletableFuture.uniWhenComplete(CompletableFuture.java:774) > at > java.util.concurrent.CompletableFuture$UniWhenComplete.tryFire(CompletableFuture.java:750) > at > java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) > at > java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990) > 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$2.run(ThreadExecutorMap.java:74) > at java.lang.Thread.run(Thread.java:748) > Caused by: org.apache.flink.runtime.concurrent.FutureUtils$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: rancher-test.ziroom.com/10.30.238.18:8081 > at > java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:292) > at > java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:308) > at > java.util.concurrent.CompletableFuture.uniCompose(CompletableFuture.java:957) > at > java.util.concurrent.CompletableFuture$UniCompose.tryFire(CompletableFuture.java:940) > ... 19 more > Caused by: > org.apache.flink.shaded.netty4.io.netty.channel.AbstractChannel$AnnotatedConnectException: > Connection refused: rancher-test.ziroom.com/10.30.238.18:8081 > Caused by: java.net.ConnectException: Connection refused > at > sun.nio.ch.SocketChannelImpl.checkConnect(Native Method) > at > sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:717) > 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.lang.Thread.run(Thread.java:748) > > 请教大佬我该如何解决此问题？ > > > > > > > > > > 卓 > > >
