Kubernetes中的插座IO保持断开连接

发布于 2025-02-13 23:30:14 字数 449 浏览 2 评论 0原文

我想在Kubernetes启动簇的插座IO应用程序。当我创建服务（无论是nodeport还是LoadBalancer）时，客户端应用程序会不断断开连接，并且再次重新连接以下日志：

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这迅速发生。

但是，当我直接连接到一个吊舱时，问题就会消失，连接变得稳定。

我如何通过以下命令来创建服务：

kubectl expose deployment xxx --type=LoadBalancer --port=80 --target-port=3000

我知道服务中缺少诸如keetalive或超时配置之类的东西，但是我该如何添加或更好地说出适当地配置套接字IO的服务？

原文

I'd like to launch a clustered Socket IO application in Kubernetes. When I create a service (whether NodePort or LoadBalancer) the client application keeps getting disconnected and it reconnects again with the following logs:

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and this happens rapidly.

However, when I connect to a single Pod directly, the problem goes away and the connection becomes stable.

How I am creating the service is by the following command:

kubectl expose deployment xxx --type=LoadBalancer --port=80 --target-port=3000

I know that something such as a KeepAlive or Timeout configuration is missing in the service, but how can I add those or better said properly configure the service for Socket IO?

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羅雙樹 2025-02-20 23:30:14

您可以使用sessionaffition：clientip，它将从K8S服务管理会话。

kind: Service
apiVersion: v1
metadata:
  name: example
spec:
  selector:
    app: example
  ports:
  - name: http
    protocol: TCP
    port: 80
    targetPort: 80
  sessionAffinity: ClientIP
  sessionAffinityConfig:
    clientIP:
      timeoutSeconds: 1800

仅适用于参考： WS WebSocket服务器库在加载平衡器后面使用时是否需要粘性会话？

You can use the sessionAffinity: ClientIP, which will manage the session from K8s service.

kind: Service
apiVersion: v1
metadata:
  name: example
spec:
  selector:
    app: example
  ports:
  - name: http
    protocol: TCP
    port: 80
    targetPort: 80
  sessionAffinity: ClientIP
  sessionAffinityConfig:
    clientIP:
      timeoutSeconds: 1800

just for ref : Does the ws websocket server library requires sticky session when it is used behind a load balancer?

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