Apache flink Flink连接被拒绝：localhost/127.0.0.1:8081_Apache Flink_Flink Streaming

Apache flink Flink连接被拒绝：localhost/127.0.0.1:8081

apache-flink

Apache flink Flink连接被拒绝：localhost/127.0.0.1:8081,apache-flink,flink-streaming,Apache Flink,Flink Streaming,我得到以下错误 org.apache.flink.shade.netty4.io.netty.channel.AbstractChannel$AnnotatedConnectionException:连接被拒绝：localhost/127.0.0.1:8081 在尝试使用Flink传输数据时。大约一个月前，我的代码运行正常，现在我遇到了这个错误。以前，我还可以通过访问Flink Web Dashboard来监控流媒体的进度，现在我的浏览器返回一个错误，即它无法访问服务器“localhost”。有

我得到以下错误

org.apache.flink.shade.netty4.io.netty.channel.AbstractChannel$AnnotatedConnectionException:连接被拒绝：localhost/127.0.0.1:8081

在尝试使用Flink传输数据时。大约一个月前，我的代码运行正常，现在我遇到了这个错误。以前，我还可以通过访问Flink Web Dashboard来监控流媒体的进度，现在我的浏览器返回一个错误，即它无法访问服务器“localhost”。有什么问题吗？先谢谢你

错误消息的完整输出：

org.apache.flink.client.program.ProgramInvocationException:无法检索执行结果。（作业ID:cfa44a8fd6a62f51ef8c0f956d55ee56）位于org.apache.flink.client.program.rest.RestClusterClient.submitJob（RestClusterClient.java:260）在org.apache.flink.client.program.ClusterClient.run（ClusterClient.java:486）位于org.apache.flink.streaming.api.environment.StreamContextEnvironment.execute（StreamContextEnvironment.java:66）位于examples.WaterLevelKafka.main（WaterLevelKafka.java:124）在sun.reflect.NativeMethodAccessorImpl.invoke0（本机方法）处位于sun.reflect.NativeMethodAccessorImpl.invoke（NativeMethodAccessorImpl.java:62）在sun.reflect.DelegatingMethodAccessorImpl.invoke（DelegatingMethodAccessorImpl.java:43）中位于java.lang.reflect.Method.invoke（Method.java:498）位于org.apache.flink.client.program.PackagedProgram.callmain方法（PackagedProgram.java:529）位于org.apache.flink.client.program.PackagedProgram.invokeInteractiveModeForExecution（PackagedProgram.java:421）在org.apache.flink.client.program.ClusterClient.run（ClusterClient.java:426）位于org.apache.flink.client.cli.CliFrontend.executeProgram（CliFrontend.java:804）位于org.apache.flink.client.cli.CliFrontend.runProgram（CliFrontend.java:280）位于org.apache.flink.client.cli.CliFrontend.run（CliFrontend.java:215）位于org.apache.flink.client.cli.CliFrontend.parseParameters（CliFrontend.java:1044）位于org.apache.flink.client.cli.CliFrontend.lambda$main$11（CliFrontend.java:1120）位于java.security.AccessController.doPrivileged（本机方法）位于javax.security.auth.Subject.doAs（Subject.java:422）位于org.apache.hadoop.security.UserGroupInformation.doAs（UserGroupInformation.java:1836）位于org.apache.flink.runtime.security.HadoopSecurityContext.runSecured（HadoopSecurityContext.java:41）位于org.apache.flink.client.cli.CliFrontend.main（CliFrontend.java:1120）原因：org.apache.flink.runtime.client.JobSubmissionException:未能提交JobGraph。位于org.apache.flink.client.program.rest.RestClusterClient.lambda$submitJob$8（RestClusterClient.java:379）位于java.util.concurrent.CompletableFuture.unix（CompletableFuture.java:870）位于java.util.concurrent.CompletableFuture$unix.tryFire（CompletableFuture.java:852）位于java.util.concurrent.CompletableFuture.postComplete（CompletableFuture.java:474）在java.util.concurrent.CompletableFuture.CompleteException（CompletableFuture.java:1977）中位于org.apache.flink.runtime.concurrent.FutureUtils.lambda$retryOperationWithDelay$5（FutureUtils.java:213）位于java.util.concurrent.CompletableFuture.uniWhenComplete（CompletableFuture.java:760）位于java.util.concurrent.CompletableFuture$UniWhenComplete.tryFire（CompletableFuture.java:736）位于java.util.concurrent.CompletableFuture.postComplete（CompletableFuture.java:474）在java.util.concurrent.CompletableFuture.CompleteException（CompletableFuture.java:1977）中位于org.apache.flink.runtime.rest.RestClient.lambda$submitRequest$1（RestClient.java:276）位于org.apache.flink.shade.netty4.io.netty.util.concurrent.DefaultPromise.notifyListener0（DefaultPromise.java:511）在org.apache.flink.shade.netty4.io.netty.util.concurrent.DefaultPromise.notifyListeners0（DefaultPromise.java:504）在org.apache.flink.shade.netty4.io.netty.util.concurrent.DefaultPromise.notifyListenersNow（DefaultPromise.java:483）上位于org.apache.flink.shade.netty4.io.netty.util.concurrent.DefaultPromise.notifyListeners（DefaultPromise.java:424）在org.apache.flink.shade.netty4.io.netty.util.concurrent.DefaultPromise.tryFailure（DefaultPromise.java:121）上位于org.apache.flink.shaded.netty4.io.netty.channel.nio.AbstractNioChannel$AbstractNiosafure.FulfillConnectionPromise（AbstractNioChannel.java:327）位于org.apache.flink.shaded.netty4.io.netty.channel.nio.AbstractNioChannel$AbstractNiosafure.finishConnect（AbstractNioChannel.java:343）位于org.apache.flink.shade.netty4.io.netty.channel.nio.NioEventLoop.processSelectedKey（NioEventLoop.java:633）位于org.apache.flink.shade.netty4.io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized（NioEventLoop.java:580）位于org.apache.flink.shade.netty4.io.netty.channel.nio.NioEventLoop.processSelectedKeys（NioEventLoop.java:497）位于org.apache.flink.shade.netty4.io.netty.channel.nio.NioEventLoop.run（NioEventLoop.java:459）位于org.apache.flink.shade.netty4.io.netty.util.concurrent.SingleThreadEventExecutor$5.run（SingleThreadEventExecutor.java:884）位于org.apache.flink.shaded.netty4.io.netty.util.concurrent.FastThreadLocalRunnable.run（FastThreadLocalRunnable.java:30）运行（Thread.java:745）原因：java.util.concurrent.CompletionException:org.apache.flink.runtime.concurrent.FutureUtils$RetryException:无法完成操作。重试次数已用尽。位于java.util.concurrent.CompletableFuture.encodeRelay（CompletableFuture.java:326）位于java.util.concurrent.CompletableFuture.completeRelay（CompletableFuture.java:338）位于java.util.concurrent.CompletableFuture.uniRelay（CompletableFuture.java:911）位于java.util.concurrent.CompletableFuture$UniRelay.tryFire（CompletableFuture.java:899） ... 还有22个原因：org。

./bin/start-cluster.sh  # Start Flink