Changes to the local configuration of the broker

Notification of changes to the broker's configuration (create, change, or delete entities) is provided by publishing events on the following system topic:
$SYS/Broker/broker_name/Configuration/ExecutionGroup/exec_grp_name
where:
broker_name
is the name of the broker issuing this message
exec_grp_name
is the name of the execution group for which the configuration has changed

One such event is published for each configuration request message that is received and processed by an execution group within the broker and can thus contain information that reflects complex configuration changes to multiple entities within the broker.

The body of each publication is the part of the configuration request that causes the event to be triggered. If an execution group is renamed, subsequent publications that report the state of that execution group use the new name.

These events are published non-persistently as non-retained publications.

Only create, change, and delete actions on the message flow are reported.

Configuration change

The following figure shows an example notification when a message flow is created. The number of attributes mentioned in the example can vary.
<Broker uuid="1234" label="Broker1" version="1">
 <ExecutionGroup uuid="2345" >
  <Create>
   <MessageFlow uuid="3456" label="MessageFlow1">
    <!-- Create the Input and Output Nodes -->
    <ComIbmMqInputNode uuid="4567"
     queueName="InputQueue1" label="InputNode1" />
    <ComIbmMqOutputNode uuid="5678"
                    queueName="OutputQueue1"
                    label="OutputNode1"/>
    <ComIbmMqOutputNode uuid="6789"
     queueManagerName="QueueManager1"
     queueName="OutputQueue2"
                    label="OutputNode2"/>
    <!-- Create the filter -->
    <ComIbmFilterNode uuid="7890"
                      filterExpression="Company=IBM"
                      label="FilterNode1"/>
    <!-- Connect them together -->
    <Connection sourceNode="4567"
     sourceTerminal="out"
     targetNode="7890" targetTerminal="in"/>
    <Connection sourceNode="7890"
     sourceTerminal="true"
     targetNode="5678" targetTerminal="in"/>
    <Connection sourceNode="7890"
     sourceTerminal="false"
     targetNode="6789" targetTerminal="in"/>
   </MessageFlow>
  </Create>
 </ExecutionGroup>
</Broker>
Related concepts
Broker domains
Related tasks
Creating a broker
Related reference
Neighbor changes
ACL updates