mqtt connect timeout problem

[momochaasdf]

There is a problem with the mqtt connection after the deployment of the k8s cluster on thingsboard.

When mqtt's: replicas=1, a single device repeatedly establishes and closes the connection, no matter how many times it is executed continuously, it can work normally.
When mqtt's: replicas>1, a single device repeatedly establishes and closes the connection, which will cause many problems such as connection timeout and connection failure.

I don't know why. Please help me.Thanks.

[momochaasdf]

expose the 1883 port through the isio gateway.

[momochaasdf]

istio gateway yaml:

apiVersion: networking.istio.io/v1alpha3
kind: Gateway
metadata:
name: {{ .Release.Name }}-mqtt-gateway
spec:
selector:
istio: ingressgateway # use istio default controller
servers:

• port:
  number: {{ .Values.gateway.mqtt.port }}
  name: mqtt
  protocol: TCP
  hosts:
  • "*"

---

apiVersion: networking.istio.io/v1alpha3
kind: VirtualService
metadata:
name: {{ .Release.Name }}-mqtt-gateway-virtual-service
spec:
hosts:

• "*"
  gateways:
• {{ .Release.Name }}-mqtt-gateway
  tcp:
• match:
  • port: {{ .Values.gateway.mqtt.port }}
    route:
  • destination:
    host: {{ .Release.Name }}-mqtt.{{ .Release.Namespace }}.svc.cluster.local
    port:
    number: {{ .Values.mqtt.port }}