问题描述

使用Java SDK连接Azure Event Hub，一直出现 java.util.concurrent.TimeoutException 异常，消息为：java.util.concurrent.TimeoutException: Did not observe any item or terminal signal within 60000ms in 'flatMapMany' (and no fallback has been configured)。

且消息体中并没有更多有效消息。

 ERROR .e.r.OpportunityResourceEventhubReceiver []: com.cbs.message.facade.eventhub.receive.OpportunityResourceEventhubReceiver.onError.partition:NONE. Exception:{}

java.util.concurrent.TimeoutException: Did not observe any item or terminal signal within 60000ms in 'flatMapMany' (and no fallback has been configured)

    at reactor.core.publisher.FluxTimeout$TimeoutMainSubscriber.handleTimeout(FluxTimeout.java:294)

    at reactor.core.publisher.FluxTimeout$TimeoutMainSubscriber.doTimeout(FluxTimeout.java:279)

    at reactor.core.publisher.FluxTimeout$TimeoutTimeoutSubscriber.onNext(FluxTimeout.java:418)

    at reactor.core.publisher.FluxOnErrorResume$ResumeSubscriber.onNext(FluxOnErrorResume.java:79)

    at reactor.core.publisher.MonoDelay$MonoDelayRunnable.propagateDelay(MonoDelay.java:270)

    at reactor.core.publisher.MonoDelay$MonoDelayRunnable.run(MonoDelay.java:285)

    at reactor.core.scheduler.SchedulerTask.call(SchedulerTask.java:68)

    at reactor.core.scheduler.SchedulerTask.call(SchedulerTask.java:28)

    at java.util.concurrent.FutureTask.run(FutureTask.java:266)

    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)

    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)

    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)

    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)

    at java.lang.Thread.run(Thread.java:748)

问题解答

如果使用Azure Event Hub官方的SDK，可以通过设置日志输出级别为Info来查看更多详细的日志，这样就可以查看更详细的日志输出。比如：

2022-11-03 10:57:49.410  INFO  ---  [           main] c.a.m.eventhubs.EventHubClientBuilder    []: {"az.sdk.message":"Emitting a single connection.","connectionId":"MF_22f21s_6940767444216"}

2022-11-03 10:57:49.602  INFO  ---  [           main] c.a.m.e.i.EventHubConnectionProcessor    []: {"az.sdk.message":"Setting next AMQP channel.","entityPath":"eh01"}

2022-11-03 10:57:49.603  INFO  ---  [           main] c.a.m.e.i.EventHubConnectionProcessor    []: {"az.sdk.message":"Next AMQP channel received, updating 0 current subscribers","entityPath":"eh01"}

2022-11-03 10:57:49.612  INFO  ---  [           main] c.a.m.eventhubs.EventProcessorClient     []: {"az.sdk.message":"Starting a new event processor instance.","eventProcessorId":"02690c22-21be-4b39-b976-efcf3ce3819a"}

2022-11-03 10:57:49.629  INFO  ---  [           main] c.a.m.eventhubs.EventHubClientBuilder    []: {"az.sdk.message":"Emitting a single connection.","connectionId":"MF_93d32o_12dcdedeadcfe33"}

2022-11-03 10:57:49.630  INFO  ---  [           main] c.a.m.e.i.EventHubConnectionProcessor    []: {"az.sdk.message":"Setting next AMQP channel.","entityPath":"eh02"}

2022-11-03 10:57:49.698  INFO  ---  [           main] c.a.m.e.i.EventHubConnectionProcessor    []: {"az.sdk.message":"Next AMQP channel received, updating 0 current subscribers","entityPath":"eh02"}

2022-11-03 10:57:49.699  INFO  ---  [           main] c.a.m.eventhubs.EventProcessorClient     []: {"az.sdk.message":"Starting a new event processor instance.","eventProcessorId":"c8d655c2-d12d-4d14-a85e-e333273293d9"}

2022-11-03 10:57:49.712  INFO  ---  [           main] c.a.m.eventhubs.EventHubClientBuilder    []: {"az.sdk.message":"Emitting a single connection.","connectionId":"MF_0346b3_1667444269712"}

2022-11-03 10:57:49.713  INFO  ---  [           main] c.a.m.e.i.EventHubConnectionProcessor    []: {"az.sdk.message":"Setting next AMQP channel.","entityPath":"eh02"}

2022-11-03 10:57:49.713  INFO  ---  [           main] c.a.m.e.i.EventHubConnectionProcessor    []: {"az.sdk.message":"Next AMQP channel received, updating 0 current subscribers","entityPath":"eh02"}

2022-11-03 10:57:49.714  INFO  ---  [           main] c.a.m.eventhubs.EventProcessorClient     []: {"az.sdk.message":"Starting a new event processor instance.","eventProcessorId":"2fd3a905-c39c-47ff-bc8d-e4b21301eeb3"}

2022-11-03 10:57:50.127  INFO  ---  [pool-6-thread-1] c.a.m.e.PartitionBasedLoadBalancer       []: {"az.sdk.message":"Starting load balancer.","ownerId":"02690c22-21be-4b39-b976-efcf3ce3819a"}

2022-11-03 10:57:50.136  INFO  ---  [pool-6-thread-1] c.a.m.e.PartitionBasedLoadBalancer       []: {"az.sdk.message":"Getting partitions from Event Hubs service.","entityPath":"eh01"}

2022-11-03 10:57:51.016  INFO  ---  [pool-6-thread-1] c.a.c.a.i.ReactorConnection              []: {"az.sdk.message":"Creating and starting connection.","connectionId":"MF_22f21s_6940767444216","hostName":"test-eventhub.servicebus.chinacloudapi.cn","port":5671}

2022-11-03 10:57:51.052  INFO  ---  [pool-6-thread-1] c.a.c.a.implementation.ReactorExecutor   []: {"az.sdk.message":"Starting reactor.","connectionId":"MF_22f21s_6940767444216"}

2022-11-03 10:57:51.060  INFO  ---  [ctor-executor-1] c.a.c.a.i.handler.ConnectionHandler      []: {"az.sdk.message":"onConnectionInit","connectionId":"MF_22f21s_6940767444216","hostName":"test-eventhub.servicebus.chinacloudapi.cn","namespace":"test-eventhub.servicebus.chinacloudapi.cn"}

2022-11-03 10:57:51.061  INFO  ---  [ctor-executor-1] c.a.c.a.i.handler.ReactorHandler         []: {"az.sdk.message":"reactor.onReactorInit","connectionId":"MF_22f21s_6940767444216"}

2022-11-03 10:57:51.061  INFO  ---  [ctor-executor-1] c.a.c.a.i.handler.ConnectionHandler      []: {"az.sdk.message":"onConnectionLocalOpen","connectionId":"MF_22f21s_6940767444216","errorCondition":null,"errorDescription":null,"hostName":"test-eventhub.servicebus.chinacloudapi.cn"}

2022-11-03 10:57:51.220  INFO  ---  [ctor-executor-1] c.a.c.a.i.handler.ConnectionHandler      []: {"az.sdk.message":"onConnectionBound","connectionId":"MF_22f21s_6940767444216","hostName":"test-eventhub.servicebus.chinacloudapi.cn","peerDetails":"test-eventhub.servicebus.chinacloudapi.cn:5671"}

2022-11-03 10:57:51.257  INFO  ---  [ctor-executor-1] c.a.c.a.i.handler.StrictTlsContextSpi    []: SSLv2Hello was an enabled protocol. Filtering out.

2022-11-03 10:57:51.360  INFO  ---  [pool-8-thread-1] c.a.m.e.PartitionBasedLoadBalancer       []: {"az.sdk.message":"Starting load balancer.","ownerId":"2fd3a905-c39c-47ff-bc8d-e4b21301eeb3"}

2022-11-03 10:57:51.360  INFO  ---  [pool-8-thread-1] c.a.m.e.PartitionBasedLoadBalancer       []: {"az.sdk.message":"Getting partitions from Event Hubs service.","entityPath":"eh02"}

2022-11-03 10:57:51.361  INFO  ---  [pool-8-thread-1] c.a.c.a.i.ReactorConnection              []: {"az.sdk.message":"Creating and starting connection.","connectionId":"MF_0346b3_1667444269712","hostName":"test-eventhub.servicebus.chinacloudapi.cn","port":5671}

2022-11-03 10:57:51.363  INFO  ---  [pool-8-thread-1] c.a.c.a.implementation.ReactorExecutor   []: {"az.sdk.message":"Starting reactor.","connectionId":"MF_0346b3_1667444269712"}

2022-11-03 10:57:51.364  INFO  ---  [ctor-executor-2] c.a.c.a.i.handler.ConnectionHandler      []: {"az.sdk.message":"onConnectionInit","connectionId":"MF_0346b3_1667444269712","hostName":"test-eventhub.servicebus.chinacloudapi.cn","namespace":"test-eventhub.servicebus.chinacloudapi.cn"}

2022-11-03 10:57:51.366  INFO  ---  [ctor-executor-2] c.a.c.a.i.handler.ReactorHandler         []: {"az.sdk.message":"reactor.onReactorInit","connectionId":"MF_0346b3_1667444269712"}

2022-11-03 10:57:51.366  INFO  ---  [ctor-executor-2] c.a.c.a.i.handler.ConnectionHandler      []: {"az.sdk.message":"onConnectionLocalOpen","connectionId":"MF_0346b3_1667444269712","errorCondition":null,"errorDescription":null,"hostName":"test-eventhub.servicebus.chinacloudapi.cn"}

2022-11-03 10:57:51.368  INFO  ---  [ctor-executor-2] c.a.c.a.i.handler.ConnectionHandler      []: {"az.sdk.message":"onConnectionBound","connectionId":"MF_0346b3_1667444269712","hostName":"test-eventhub.servicebus.chinacloudapi.cn","peerDetails":"test-eventhub.servicebus.chinacloudapi.cn:5671"}

2022-11-03 10:57:51.369  INFO  ---  [ctor-executor-2] c.a.c.a.i.handler.StrictTlsContextSpi    []: SSLv2Hello was an enabled protocol. Filtering out.

2022-11-03 10:57:51.470  INFO  ---  [pool-7-thread-1] c.a.m.e.PartitionBasedLoadBalancer       []: {"az.sdk.message":"Starting load balancer.","ownerId":"c8d655c2-d12d-4d14-a85e-e333273293d9"}

2022-11-03 10:57:51.470  INFO  ---  [pool-7-thread-1] c.a.m.e.PartitionBasedLoadBalancer       []: {"az.sdk.message":"Getting partitions from Event Hubs service.","entityPath":"eh02"}

2022-11-03 10:57:51.471  INFO  ---  [pool-7-thread-1] c.a.c.a.i.ReactorConnection              []: {"az.sdk.message":"Creating and starting connection.","connectionId":"MF_93d32o_12dcdedeadcfe33","hostName":"test-eventhub.servicebus.chinacloudapi.cn","port":5671}

2022-11-03 10:57:51.472  INFO  ---  [pool-7-thread-1] c.a.c.a.implementation.ReactorExecutor   []: {"az.sdk.message":"Starting reactor.","connectionId":"MF_93d32o_12dcdedeadcfe33"}

2022-11-03 10:57:51.473  INFO  ---  [ctor-executor-3] c.a.c.a.i.handler.ConnectionHandler      []: {"az.sdk.message":"onConnectionInit","connectionId":"MF_93d32o_12dcdedeadcfe33","hostName":"test-eventhub.servicebus.chinacloudapi.cn","namespace":"test-eventhub.servicebus.chinacloudapi.cn"}

2022-11-03 10:57:51.473  INFO  ---  [ctor-executor-3] c.a.c.a.i.handler.ReactorHandler         []: {"az.sdk.message":"reactor.onReactorInit","connectionId":"MF_93d32o_12dcdedeadcfe33"}

2022-11-03 10:57:51.473  INFO  ---  [ctor-executor-3] c.a.c.a.i.handler.ConnectionHandler      []: {"az.sdk.message":"onConnectionLocalOpen","connectionId":"MF_93d32o_12dcdedeadcfe33","errorCondition":null,"errorDescription":null,"hostName":"test-eventhub.servicebus.chinacloudapi.cn"}

2022-11-03 10:57:51.475  INFO  ---  [ctor-executor-3] c.a.c.a.i.handler.ConnectionHandler      []: {"az.sdk.message":"onConnectionBound","connectionId":"MF_93d32o_12dcdedeadcfe33","hostName":"test-eventhub.servicebus.chinacloudapi.cn","peerDetails":"test-eventhub.servicebus.chinacloudapi.cn:5671"}

2022-11-03 10:57:51.475  INFO  ---  [ctor-executor-3] c.a.c.a.i.handler.StrictTlsContextSpi    []: SSLv2Hello was an enabled protocol. Filtering out.

2022-11-03 10:58:21.099  INFO  ---  [pool-6-thread-1] c.a.m.e.PartitionBasedLoadBalancer       []: Load balancer already running

2022-11-03 10:58:21.367  INFO  ---  [pool-8-thread-1] c.a.m.e.PartitionBasedLoadBalancer       []: Load balancer already running

2022-11-03 10:58:21.474  INFO  ---  [pool-7-thread-1] c.a.m.e.PartitionBasedLoadBalancer       []: Load balancer already running

2022-11-03 10:58:51.014  WARN  ---  [     parallel-2] c.a.m.e.PartitionBasedLoadBalancer       []: Load balancing for event processor failed. Did not observe any item or terminal signal within 60000ms in 'flatMapMany' (and no fallback has been configured)

2022-11-03 10:58:51.017 ERROR  ---  [     parallel-2] c.c.m.f.e.r.OpportunityEventhubReceiver  []: com.cbs.message.facade.eventhub.receive.OpportunityEventhubReceiver.onError.partition:NONE. Exception:{}

java.util.concurrent.TimeoutException: Did not observe any item or terminal signal within 60000ms in 'flatMapMany' (and no fallback has been configured)

    at reactor.core.publisher.FluxTimeout$TimeoutMainSubscriber.handleTimeout(FluxTimeout.java:294)

    at reactor.core.publisher.FluxTimeout$TimeoutMainSubscriber.doTimeout(FluxTimeout.java:279)

    at reactor.core.publisher.FluxTimeout$TimeoutTimeoutSubscriber.onNext(FluxTimeout.java:418)

    at reactor.core.publisher.FluxOnErrorResume$ResumeSubscriber.onNext(FluxOnErrorResume.java:79)

    at reactor.core.publisher.MonoDelay$MonoDelayRunnable.propagateDelay(MonoDelay.java:270)

    at reactor.core.publisher.MonoDelay$MonoDelayRunnable.run(MonoDelay.java:285)

    at reactor.core.scheduler.SchedulerTask.call(SchedulerTask.java:68)

    at reactor.core.scheduler.SchedulerTask.call(SchedulerTask.java:28)

    at java.util.concurrent.FutureTask.run(FutureTask.java:266)

    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)

    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)

    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)

    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)

    at java.lang.Thread.run(Thread.java:748)

2022-11-03 10:58:51.058  WARN  ---  [ctor-executor-1] c.a.c.a.i.handler.ConnectionHandler      []: {"az.sdk.message":"onTransportError","connectionId":"MF_93d32o_12dcdedeadcfe33","errorCondition":"amqp:connection:framing-error","errorDescription":"org.apache.qpid.proton.engine.TransportException: connection aborted","hostName":"test-eventhub.servicebus.chinacloudapi.cn"}

2022-11-03 10:58:51.062  INFO  ---  [ctor-executor-1] c.a.c.a.i.ReactorConnection              []: {"az.sdk.message":"Disposing of ReactorConnection.","connectionId":"MF_93d32o_12dcdedeadcfe33","isTransient":false,"isInitiatedByClient":false,"shutdownMessage":"org.apache.qpid.proton.engine.TransportException: connection aborted, errorContext[NAMESPACE: test-eventhub.servicebus.chinacloudapi.cn. ERROR CONTEXT: N/A]"}

2022-11-03 10:58:51.075  INFO  ---  [ctor-executor-1] c.a.c.a.i.handler.ConnectionHandler      []: {"az.sdk.message":"onConnectionUnbound","connectionId":"MF_93d32o_12dcdedeadcfe33","hostName":"test-eventhub.servicebus.chinacloudapi.cn","state":"CLOSED","remoteState":"UNINITIALIZED"}

2022-11-03 10:58:51.077  INFO  ---  [ctor-executor-1] c.a.c.a.i.ReactorConnection              []: {"az.sdk.message":"Closing executor.","connectionId":"MF_93d32o_12dcdedeadcfe33"}

2022-11-03 10:58:51.099  INFO  ---  [pool-6-thread-1] c.a.m.e.PartitionBasedLoadBalancer       []: {"az.sdk.message":"Starting load balancer.","ownerId":"02690c22-21be-4b39-b976-efcf3ce3819a"}

2022-11-03 10:58:51.100  INFO  ---  [pool-6-thread-1] c.a.m.e.PartitionBasedLoadBalancer       []: {"az.sdk.message":"Getting partitions from Event Hubs service.","entityPath":"eh02"}

2022-11-03 10:58:51.101 ERROR  ---  [pool-6-thread-1] c.a.m.e.i.EventHubReactorAmqpConnection  []: {"az.sdk.message":"connectionId[MF_93d32o_12dcdedeadcfe33]: Connection is disposed. Cannot get management instance","exception":"connectionId[MF_22f21s_6940767444216]: Connection is disposed. Cannot get management instance","connectionId":"MF_22f21s_6940767444216"}

2022-11-03 10:58:51.104  WARN  ---  [pool-6-thread-1] c.a.m.e.PartitionBasedLoadBalancer       []: Load balancing for event processor failed.connectionId[MF_93d32o_12dcdedeadcfe33]: Connection is disposed. Cannot get management instance

2022-11-03 10:58:51.105 ERROR  ---  [pool-6-thread-1] c.c.m.f.e.r.OpportunityEventhubReceiver  []: com.cbs.message.facade.eventhub.receive.OpportunityEventhubReceiver.onError.partition:NONE. Exception:{}

java.lang.IllegalStateException: connectionId[MF_22f21s_6940767444216]: Connection is disposed. Cannot get management instance

    at com.azure.messaging.eventhubs.implementation.EventHubReactorAmqpConnection.getManagementNode(EventHubReactorAmqpConnection.java:90)

    at com.azure.messaging.eventhubs.EventHubAsyncClient.lambda$getProperties$0(EventHubAsyncClient.java:73)

    at reactor.core.publisher.MonoFlatMap$FlatMapMain.onNext(MonoFlatMap.java:125)

    at reactor.core.publisher.Operators$MonoSubscriber.complete(Operators.java:1815)

    at com.azure.core.amqp.implementation.AmqpChannelProcessor.subscribe(AmqpChannelProcessor.java:267)

    at reactor.core.publisher.Mono.subscribe(Mono.java:4150)

    at reactor.core.publisher.MonoZip.subscribe(MonoZip.java:128)

    at reactor.core.publisher.Mono.subscribe(Mono.java:4150)

    at reactor.core.publisher.MonoIgnorePublisher.subscribe(MonoIgnorePublisher.java:56)

    at reactor.core.publisher.FluxRepeatPredicate$RepeatPredicateSubscriber.resubscribe(FluxRepeatPredicate.java:119)

    at reactor.core.publisher.MonoRepeatPredicate.subscribeOrReturn(MonoRepeatPredicate.java:47)

    at reactor.core.publisher.Flux.subscribe(Flux.java:8221)

    at reactor.core.publisher.Flux.subscribeWith(Flux.java:8408)

    at reactor.core.publisher.Flux.subscribe(Flux.java:8205)

    at reactor.core.publisher.Flux.subscribe(Flux.java:8129)

    at com.azure.messaging.eventhubs.PartitionBasedLoadBalancer.loadBalance(PartitionBasedLoadBalancer.java:154)

    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)

    at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)

    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)

    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)

    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)

    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)

    at java.lang.Thread.run(Thread.java:748)

根据以上的日志，可以看出：

1）在发生异常之前，有WARN日志输出，显示 Load balancing for event processor failed.

2）在连接的信息中，查看到应用连接的端口为 5671

由于一直连接不上，就应该参考官网的客户端连接问题排查访问进行排查，第一步就是检查端口 5671 是否能从执行 Java代码的主机上Ping 通。参考：https://docs.azure.cn/zh-cn/event-hubs/troubleshooting-guide#run-the-command-to-check-dropped-packets

请运行以下命令，检查是否存在任何丢弃的数据包或者无法ping通的问题：

.\psping.exe -n 25 -i 1 -q <yournamespacename>.servicebus.chinacloudapi.cn:5671 -nobanner

在实际验证中，以上错误就是发现 客户端环境无法ping通 5671，5672端口。当在防火墙中放开这两个端口后。连接成功！

参考资料

排查连接问题 - Azure 事件中心：https://docs.azure.cn/zh-cn/event-hubs/troubleshooting-guide#run-the-command-to-check-dropped-packets

Load balancing for event processor failed #12525 : https://github.com/Azure/azure-sdk-for-java/issues/12525

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【Azure 事件中心】Event Hub 无法连接，出现 Did not observe any item or terminal signal within 60000ms in 'flatMapMany' 的错误消息

问题描述

问题解答

参考资料

【Azure 事件中心】Event Hub 无法连接，出现 Did not observe any item or terminal signal within 60000ms in 'flatMapMany' 的错误消息的更多相关文章

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