5.10. Event delivery order for triggers

Procedure

1. Create or modify a Trigger object and set the kafka.eventing.knative.dev/delivery.order annotation using the following example Trigger YAML file::

   apiVersion: eventing.knative.dev/v1
   kind: Trigger
   metadata:
     name: <trigger_name>
     annotations:
        kafka.eventing.knative.dev/delivery.order: ordered
   # ...

   The supported consumer delivery guarantees are:

   unordered

   An unordered consumer is a non-blocking consumer that delivers messages unordered, while preserving proper offset management.

   ordered

   An ordered consumer is a per-partition blocking consumer that waits for a successful response from the CloudEvent subscriber before it delivers the next message of the partition.

   The default ordering guarantee is unordered.

2. Apply the Trigger object using the following command::

   $ oc apply -f <filename>