[Bug] Unable to perceive the latest subscription services · apache/dubbo#13854

2024-03-07T08:25:29.000Z

### Pre-check - [X] I am sure that all the content I provide is in English. ### Search before asking - [X] I had searched in the [issues](https://github.com/apache/dubbo/issues?q=is%3Aissue) and found no similar issues. ### Apache Dubbo Component Java SDK (apache/dubbo) ### Dubbo Version dubbo 3.2.12 ### Steps to reproduce this issue ![image](https://github.com/apache/dubbo/assets/6240229/562ead58-f6e8-4b30-881e-e1b671de417b) 1. Get two instances here, one of which is about to die. 2. Both instances establish NettyConnectionClient, synchronised connection server appears to wait. At this point one of the instances is offline. The local nacos local cache is already listening for the latest metadata info. 3. Wait for all the NettyConnectionClient to complete, at which point the subscription relationship is done. Unable to trigger ### What you expected to happen Refreshing the service ### Anything else _No response_ ### Are you willing to submit a pull request to fix on your own? - [X] Yes I am willing to submit a pull request on my own! ### Code of Conduct - [X] I agree to follow this project's [Code of Conduct](https://www.apache.org/foundation/policies/conduct)

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Description

Pre-check

I am sure that all the content I provide is in English.

Search before asking

I had searched in the issues and found no similar issues.

Apache Dubbo Component

Java SDK (apache/dubbo)

Dubbo Version

dubbo 3.2.12

Steps to reproduce this issue

Get two instances here, one of which is about to die.
Both instances establish NettyConnectionClient, synchronised connection server appears to wait. At this point one of the instances is offline. The local nacos local cache is already listening for the latest metadata info.
Wait for all the NettyConnectionClient to complete, at which point the subscription relationship is done. Unable to trigger

What you expected to happen

Refreshing the service

Anything else

No response

Are you willing to submit a pull request to fix on your own?

Yes I am willing to submit a pull request on my own!

Code of Conduct

I agree to follow this project's Code of Conduct

Guide contributeur

Direction de recherche: Étudiez le timing de l'initialisation de NettyConnectionClient et des mises à jour du cache local Nacos. Tracez le flux d'abonnement pour identifier pourquoi les services les plus récents ne sont pas perçus lorsqu'une instance se déconnecte lors de la configuration de la connexion.
Stack technique: java
Domaine: backendapidistributed systems
Type d'issue: Bug
Difficulté: 3
Temps estimé: 1-2 jours
Statut d'activité: Active
Clarté: Plutôt claire
Prérequis: JavaDubboNetty
Accessibilité débutant: 45