Chapter 5. Configuration

The router’s configuration is defined in the router configuration file. You can access this file to view and modify that configuration.

Before you can make changes to a router configuration file, you should understand how the file is structured.

The configuration file contains sections. A section is a configurable entity, and it contains a set of attribute name-value pairs that define the settings for that entity. The syntax is as follows:

sectionName {
    attributeName: attributeValue
    attributeName: attributeValue
    ...
}

sectionName {
    attributeName: attributeValue
    attributeName: attributeValue
    ...
}

The router configuration file supports pattern matching and wildcards to enable you to match multiple values for certain attributes. However, the syntax varies based on the type of entity that you are configuring.

You can use different methods for changing a router’s configuration based on whether the router is currently running, and whether you want the change to take effect immediately.

The router’s configuration file controls the way in which the router functions. The default configuration file contains the minimum number of settings required for the router to run. As you become more familiar with the router, you can add to or change these settings, or create your own configuration files.

When you installed AMQ Interconnect, the default configuration file was added at the following path: /etc/qpid-dispatch/qdrouterd.conf. It includes some basic configuration settings that define the router’s operating mode, how it listens for incoming connections, and routing patterns for the message routing mechanism.

router {
    mode: standalone 
    id: Router.A 
}

listener { 
    host: 0.0.0.0 
    port: amqp 
    authenticatePeer: no 
}

address { 
    prefix: closest
    distribution: closest
}

address {
    prefix: multicast
    distribution: multicast
}

address {
    prefix: unicast
    distribution: closest
}

address {
    prefix: exclusive
    distribution: closest
}

address {
    prefix: broadcast
    distribution: multicast
}

router {
    mode: standalone 

    id: Router.A 

}

listener { 

    host: 0.0.0.0 

    port: amqp 

    authenticatePeer: no 

}

address { 

    prefix: closest
    distribution: closest
}

address {
    prefix: multicast
    distribution: multicast
}

address {
    prefix: unicast
    distribution: closest
}

address {
    prefix: exclusive
    distribution: closest
}

address {
    prefix: broadcast
    distribution: multicast
}

The router’s default configuration settings enable the router to run with minimal configuration. However, you may need to change some of these settings for the router to run properly in your environment.