title: Why does my Message Processor not trigger and read messages from the RabbitMQ Queue?
body: <p>I'm trying to get a Getting Started scenario to work, specifically the one about Guaranteed Delivery. I have followed the steps as described in the readme. When I sent the message from PostMan, I do receive a 202 from the server. In addition, I do see the message come in on the Rabbit Queue. However, that's where the process seems to stall: I never get the log from the endpoint. The message processor does not pick up the message from the message store.</p>
  <p>I followed the readme that is attached to the Getting Started - Guaranteed Delivery-module. I can't find it online, but when you unpack the module in the Integration Studio, you should easily find it.</p>
  <p>I've tried reinstalling, but I get the same problem. I feel it might be that the processor is immediately switched off, but I would not know where to turn it on properly. Does anybody have any idea?</p>
  <p><strong>Edited to add:</strong> A solution was provided to the processor immediately switching off (<a href="https://github.com/wso2/micro-integrator/issues/1700" rel="nofollow noreferrer">https://github.com/wso2/micro-integrator/issues/1700</a>), but this has not solved the problem. For some reason, the processor still won't pick up the message from the RabbitQueue.</p>
  <ul>
  <li>In the Message Processor, the parameter 'Processor State' is set to active. (Or true, rather.)</li>
  </ul>
  <pre><code>&lt;messageProcessor class=&quot;org.apache.synapse.message.processor.impl.forwarder.ScheduledMessageForwardingProcessor&quot; messageStore=&quot;UserRegistrationMS&quot; name=&quot;UserRegistrationMP&quot; targetEndpoint=&quot;UserRegistrationEP&quot; xmlns=&quot;http://ws.apache.org/ns/synapse&quot;&gt;
      &lt;parameter name=&quot;client.retry.interval&quot;&gt;1000&lt;/parameter&gt;
      &lt;parameter name=&quot;max.delivery.attempts&quot;&gt;4&lt;/parameter&gt;
      &lt;parameter name=&quot;member.count&quot;&gt;1&lt;/parameter&gt;
      &lt;parameter name=&quot;message.processor.reply.sequence&quot;&gt;UserRegistrationResponseSeq&lt;/parameter&gt;
      &lt;parameter name=&quot;message.processor.fault.sequence&quot;&gt;UserRegistrationErrorSeq&lt;/parameter&gt;
      &lt;parameter name=&quot;store.connection.retry.interval&quot;&gt;1000&lt;/parameter&gt;
      &lt;parameter name=&quot;max.store.connection.attempts&quot;&gt;-1&lt;/parameter&gt;
      &lt;parameter name=&quot;max.delivery.drop&quot;&gt;Disabled&lt;/parameter&gt;
      &lt;parameter name=&quot;interval&quot;&gt;1000&lt;/parameter&gt;
   &lt;/messageProcessor&gt;
  </code></pre>
  <ul>
  <li>The Message Service:</li>
  </ul>
  <pre><code>&lt;messageStore class=&quot;org.apache.synapse.message.store.impl.rabbitmq.RabbitMQStore&quot; name=&quot;UserRegistrationMS&quot; xmlns=&quot;http://ws.apache.org/ns/synapse&quot;&gt;
      &lt;parameter name=&quot;store.rabbitmq.host.name&quot;&gt;localhost&lt;/parameter&gt;
      &lt;parameter name=&quot;store.producer.guaranteed.delivery.enable&quot;&gt;false&lt;/parameter&gt;
      &lt;parameter name=&quot;store.rabbitmq.host.port&quot;&gt;5672&lt;/parameter&gt;
      &lt;parameter name=&quot;store.rabbitmq.route.key&quot;/&gt;
      &lt;parameter name=&quot;store.rabbitmq.username&quot;&gt;guest&lt;/parameter&gt;
      &lt;parameter name=&quot;store.rabbitmq.virtual.host&quot;/&gt;
      &lt;parameter name=&quot;rabbitmq.connection.ssl.enabled&quot;&gt;false&lt;/parameter&gt;
      &lt;parameter name=&quot;store.rabbitmq.exchange.name&quot;/&gt;
      &lt;parameter name=&quot;store.rabbitmq.queue.name&quot;&gt;UserRegistrationQueue&lt;/parameter&gt;
      &lt;parameter name=&quot;store.rabbitmq.password&quot;&gt;guest&lt;/parameter&gt;
  &lt;/messageStore&gt;
  </code></pre>
  <p>This is my console output</p>
  <pre><code>[2022-08-09 16:13:15,384]  INFO {RabbitMQSender} - RABBITMQ Sender started
  [2022-08-09 16:13:15,426]  INFO {RabbitMQSender} - RabbitMQ AMQP Transport Sender initialized...
  [2022-08-09 16:13:17,380]  INFO {EndpointDeployer} - Endpoint named 'UserRegistrationEP' has been deployed from file : C:\Programs\WSO2-Integration-Studio-8.1.0-win32-x86_64\IntegrationStudio\runtime\microesb\tmp\carbonapps\-1234\1660054397262TestCompositeApplication_1.0.0.car\UserRegistrationEP_1.0.0\UserRegistrationEP-1.0.0.xml
  [2022-08-09 16:13:17,408]  INFO {SequenceDeployer} - Sequence named 'UserRegistrationErrorSeq' has been deployed from file : C:\Programs\WSO2-Integration-Studio-8.1.0-win32-x86_64\IntegrationStudio\runtime\microesb\tmp\carbonapps\-1234\1660054397262TestCompositeApplication_1.0.0.car\UserRegistrationErrorSeq_1.0.0\UserRegistrationErrorSeq-1.0.0.xml
  [2022-08-09 16:13:17,459]  INFO {SequenceDeployer} - Sequence named 'UserRegistrationResponseSeq' has been deployed from file : C:\Programs\WSO2-Integration-Studio-8.1.0-win32-x86_64\IntegrationStudio\runtime\microesb\tmp\carbonapps\-1234\1660054397262TestCompositeApplication_1.0.0.car\UserRegistrationResponseSeq_1.0.0\UserRegistrationResponseSeq-1.0.0.xml
  [2022-08-09 16:13:17,470]  INFO {MessageStoreFactory} - Successfully added Message Store configuration of : [UserRegistrationMS].
  [2022-08-09 16:13:17,580]  INFO {RabbitMQStore} - Store [UserRegistrationMS] Successfully connected to RabbitMQ Broker
  [2022-08-09 16:13:17,596]  INFO {RabbitMQStore} - Store [UserRegistrationMS]. Initialized... 
  [2022-08-09 16:13:17,603]  INFO {MessageStoreDeployer} - Message Store named 'UserRegistrationMS' has been deployed from file : C:\Programs\WSO2-Integration-Studio-8.1.0-win32-x86_64\IntegrationStudio\runtime\microesb\tmp\carbonapps\-1234\1660054397262TestCompositeApplication_1.0.0.car\UserRegistrationMS_1.0.0\UserRegistrationMS-1.0.0.xml
  [2022-08-09 16:13:17,803]  INFO {MessageProcessorDeployer} - Message Processor named 'UserRegistrationMP' has been deployed from file : C:\Programs\WSO2-Integration-Studio-8.1.0-win32-x86_64\IntegrationStudio\runtime\microesb\tmp\carbonapps\-1234\1660054397262TestCompositeApplication_1.0.0.car\UserRegistrationMP_1.0.0\UserRegistrationMP-1.0.0.xml
  [2022-08-09 16:13:17,809]  INFO {API} - {api:MockAPI} Initializing API: MockAPI
  [2022-08-09 16:13:17,813]  INFO {APIDeployer} - API named 'MockAPI' has been deployed from file : C:\Programs\WSO2-Integration-Studio-8.1.0-win32-x86_64\IntegrationStudio\runtime\microesb\tmp\carbonapps\-1234\1660054397262TestCompositeApplication_1.0.0.car\MockAPI_1.0.0\MockAPI-1.0.0.xml
  [2022-08-09 16:13:17,816]  INFO {API} - {api:UserRegistrationAPI} Initializing API: UserRegistrationAPI
  [2022-08-09 16:13:17,816]  INFO {APIDeployer} - API named 'UserRegistrationAPI' has been deployed from file : C:\Programs\WSO2-Integration-Studio-8.1.0-win32-x86_64\IntegrationStudio\runtime\microesb\tmp\carbonapps\-1234\1660054397262TestCompositeApplication_1.0.0.car\UserRegistrationAPI_1.0.0\UserRegistrationAPI-1.0.0.xml
  [2022-08-09 16:13:17,817]  INFO {CappDeployer} - Successfully Deployed Carbon Application : GettingStartedGuaranteedCompositeExporter_1.0.0-SNAPSHOT{super-tenant}
  [2022-08-09 16:13:17,819]  INFO {AppDeployerServiceComponent} - Dashboard is configured. Initiating heartbeat component.
  [2022-08-09 16:13:17,857]  INFO {PassThroughListeningIOReactorManager} - Pass-through HTTP Listener started on 0.0.0.0:8290
  [2022-08-09 16:13:17,864]  INFO {PassThroughListeningIOReactorManager} - Pass-through HTTPS Listener started on 0.0.0.0:8253
  [2022-08-09 16:13:17,866]  INFO {StartupFinalizer} - WSO2 Micro Integrator started in 9,51 seconds
  [2022-08-09 16:13:18,033]  INFO {PassThroughListeningIOReactorManager} - Pass-through EI_INTERNAL_HTTP_INBOUND_ENDPOINT Listener started on 0.0.0.0:9201
  [2022-08-09 16:13:18,053]  INFO {PassThroughListeningIOReactorManager} - Pass-through EI_INTERNAL_HTTPS_INBOUND_ENDPOINT Listener started on 0.0.0.0:9164
  [2022-08-09 16:13:18,147]  INFO {AbstractQuartzTaskManager} - Task scheduled: [ESB_TASK][MSMP_UserRegistrationMP_0] [Paused].
  [2022-08-09 16:13:18,147]  INFO {ScheduledMessageProcessor} - Started message processor. [UserRegistrationMP].
  [2022-08-09 16:13:19,873]  INFO {AuthenticationHandlerAdapter} - User admin logged in successfully
  [2022-08-09 16:13:20,557]  INFO {AuthenticationHandlerAdapter} - User admin logged in successfully
  </code></pre>