Issues with RPC registration to Etcd.

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5个节点的 etcd 集群，两个服务器运行同一个rpc服务。运行一段时间后，etcd中的key 变得很多，如下图所示都是同一个key 但是有2w多个。

2. The error is

Environments :

• OS: Ubuntu
• go-zero version 1.8.4
• goctl version 1.24.1

[kevwan]

What's your server code? It seems the server registered many times.

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My gRPC configuration is ：

Name: product.gorpc.rpc
ListenOn: 0.0.0.0:3031
Mode: pro
Timeout: 20000

Log:
  Level: info
  Mode: file
  KeepDays: 10

Middlewares:
  Timeout: true

Etcd:
  User: "root"
  Pass: "123!@#QWE"
  Hosts:
    - 191.56.28.210:2230
  Key: productService/GoRpc.rpc

Mysql:
  DataSource: "root:123123@tcp(123.123.123:3603)/product_online?charset=utf8mb4&parseTime=true&loc=Asia%2FShanghai"

Prometheus:
  Host: 0.0.0.0
  Port: 3032
  Path: /metrics

After the program runs normally for a period of time, the above issue occurs, and the number of registrations increases over time, feeling like go-zero is continuously repeating the registration.

main.go :

service_context.go:

[Humphrey-He]

检查 RPC 服务到 Etcd 的网络稳定性，确保 KeepAlive 正常。确认 Etcd 集群健康度。随后清理 Etcd 中重复的过期 Key。 如果etcd 是集群，最好列出所有节点，增加容错性。