org.springframework.messaging.MessageDeliveryException: Dispatcher has no subscribers for channel 'unknown.channel.name'.; nested exception is org.springframework.integration.MessageDispatchingException: Dispatcher has no subscribers

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    org.springframework.messaging.MessageDeliveryException: Dispatcher has no subscribers for channel 'rdms_AppB:8082.input'.; nested exception is org.springframework.integration.MessageDispatchingException: Dispatcher has no subscribers

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    Root Cause Analysis

    1. org.springframework.integration.MessageDispatchingException

      Dispatcher has no subscribers

      at org.springframework.integration.dispatcher.UnicastingDispatcher.doDispatch()
    2. Spring Integration Core
      AbstractMessageChannel.send
      1. org.springframework.integration.dispatcher.UnicastingDispatcher.doDispatch(UnicastingDispatcher.java:153)
      2. org.springframework.integration.dispatcher.UnicastingDispatcher.dispatch(UnicastingDispatcher.java:120)
      3. org.springframework.integration.channel.AbstractSubscribableChannel.doSend(AbstractSubscribableChannel.java:77)
      4. org.springframework.integration.channel.AbstractMessageChannel.send(AbstractMessageChannel.java:442)
      5. org.springframework.integration.channel.AbstractMessageChannel.send(AbstractMessageChannel.java:392)
      5 frames
    3. Spring Messaging
      AbstractMessageSendingTemplate.send
      1. org.springframework.messaging.core.GenericMessagingTemplate.doSend(GenericMessagingTemplate.java:115)
      2. org.springframework.messaging.core.GenericMessagingTemplate.doSend(GenericMessagingTemplate.java:45)
      3. org.springframework.messaging.core.AbstractMessageSendingTemplate.send(AbstractMessageSendingTemplate.java:105)
      3 frames
    4. Spring Integration Core
      FixedSubscriberChannel.send
      1. org.springframework.integration.handler.AbstractMessageProducingHandler.sendOutput(AbstractMessageProducingHandler.java:231)
      2. org.springframework.integration.handler.AbstractMessageProducingHandler.produceOutput(AbstractMessageProducingHandler.java:154)
      3. org.springframework.integration.handler.AbstractMessageProducingHandler.sendOutputs(AbstractMessageProducingHandler.java:102)
      4. org.springframework.integration.handler.AbstractReplyProducingMessageHandler.handleMessageInternal(AbstractReplyProducingMessageHandler.java:105)
      5. org.springframework.integration.handler.AbstractMessageHandler.handleMessage(AbstractMessageHandler.java:127)
      6. org.springframework.integration.channel.FixedSubscriberChannel.send(FixedSubscriberChannel.java:69)
      7. org.springframework.integration.channel.FixedSubscriberChannel.send(FixedSubscriberChannel.java:63)
      7 frames
    5. Spring Messaging
      AbstractMessageSendingTemplate.send
      1. org.springframework.messaging.core.GenericMessagingTemplate.doSend(GenericMessagingTemplate.java:115)
      2. org.springframework.messaging.core.GenericMessagingTemplate.doSend(GenericMessagingTemplate.java:45)
      3. org.springframework.messaging.core.AbstractMessageSendingTemplate.send(AbstractMessageSendingTemplate.java:105)
      3 frames
    6. Spring Integration Core
      MessageProducerSupport.sendMessage
      1. org.springframework.integration.endpoint.MessageProducerSupport.sendMessage(MessageProducerSupport.java:105)
      1 frame
    7. org.springframework.integration
      AbstractDecodingMessageListener.onMessage
      1. org.springframework.integration.kafka.inbound.KafkaMessageDrivenChannelAdapter.access$300(KafkaMessageDrivenChannelAdapter.java:43)
      2. org.springframework.integration.kafka.inbound.KafkaMessageDrivenChannelAdapter$AutoAcknowledgingChannelForwardingMessageListener.doOnMessage(KafkaMessageDrivenChannelAdapter.java:171)
      3. org.springframework.integration.kafka.listener.AbstractDecodingMessageListener.onMessage(AbstractDecodingMessageListener.java:50)
      3 frames
    8. org.springframework.cloud
      KafkaMessageChannelBinder$4$1.doWithRetry
      1. org.springframework.cloud.stream.binder.kafka.KafkaMessageChannelBinder$4$1.doWithRetry(KafkaMessageChannelBinder.java:607)
      1 frame
    9. Spring Retry
      RetryTemplate.execute
      1. org.springframework.retry.support.RetryTemplate.doExecute(RetryTemplate.java:263)
      2. org.springframework.retry.support.RetryTemplate.execute(RetryTemplate.java:154)
      2 frames
    10. org.springframework.cloud
      KafkaMessageChannelBinder$4.onMessage
      1. org.springframework.cloud.stream.binder.kafka.KafkaMessageChannelBinder$4.onMessage(KafkaMessageChannelBinder.java:604)
      1 frame
    11. org.springframework.integration
      QueueingMessageListenerInvoker$KafkaMessageDispatchingSubscriber.onNext
      1. org.springframework.integration.kafka.listener.QueueingMessageListenerInvoker$KafkaMessageDispatchingSubscriber.onNext(QueueingMessageListenerInvoker.java:221)
      2. org.springframework.integration.kafka.listener.QueueingMessageListenerInvoker$KafkaMessageDispatchingSubscriber.onNext(QueueingMessageListenerInvoker.java:209)
      2 frames
    12. reactor.core.processor
      RingBufferSubscriberUtils.route
      1. reactor.core.processor.util.RingBufferSubscriberUtils.route(RingBufferSubscriberUtils.java:67)
      1 frame
    13. Core Reactor components
      RingBufferProcessor$BatchSignalProcessor.run
      1. reactor.core.processor.RingBufferProcessor$BatchSignalProcessor.run(RingBufferProcessor.java:789)
      1 frame
    14. Java RT
      Thread.run
      1. java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
      2. java.util.concurrent.FutureTask.run(FutureTask.java:266)
      3. java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
      4. java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
      5. java.lang.Thread.run(Thread.java:745)
      5 frames