The queries per second (QPS) value determines the number of client requests or API calls that are sent to the API server.
The burst value determines how many requests from the client can be stored for processing. Requests exceeding this buffer will be dropped. This is helpful for controllers that are bursty and do not spread their requests uniformly in time.
net-kourier-controller restarts, it parses all
ingress resources deployed on the cluster, which leads to a significant number of API calls. Due to this, the
net-kourier-controller can take a long time to start.
You can adjust the QPS and burst values for the
net-kourier-controller in the KnativeServing CR:
KnativeServing CR example
- name: net-kourier-controller
- container: controller
- name: KUBE_API_BURST
value: "200" (1)
- name: KUBE_API_QPS
value: "200" (2)
||The QPS rate of communication between controller and the API Server. The default value is 200.
||The burst capacity of communication between Kubelet and the API Server. The default value is 200.