Advanced configuration

Strict Binding Mode

By default, SmallRye Reactive Messaging does not enforce whether all mediators are connected. It just prints a warning message. The strict mode fails the deployment if some "incomings" are not bound to "outgoings". To enable this mode, you can pass the -Dsmallrye-messaging-strict-binding=true via the command line, or you can set the smallrye-messaging-strict-binding attribute to true in the configuration:

1	`smallrye-messaging-strict-binding=true`

Disabling channels

You can disable a channel in the configuration by setting the enabled attribute to false:

1 2	`mp.messaging.outgoing.dummy-sink.connector=dummy mp.messaging.outgoing.dummy-sink.enabled=false # Disable this channel`

SmallRye Reactive Messaging does not register disabled channels, so make sure the rest of the application does not rely on them.

Publisher metrics

SmallRye Reactive Messaging integrates MicroProfile Metrics and Micrometer for registering counter metrics (named mp.messaging.message.count) of published messages per channel.

Both MicroProfile and Micrometer publisher metrics are enabled by default if found on the classpath. They can be disabled with smallrye.messaging.metrics.mp.enabled and smallrye.messaging.metrics.micrometer.enabled properties respectively.