[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)

(5 commenti) (0 reazioni) (0 assegnatari)Java (26.453 fork)batch import

component/sdkhelp wantedtype/bug

Metriche repository

Star: (41.524 star)
Metriche merge PR: (Merge medio 7g 14h) (20 PR mergiate in 30 g)

Descrizione

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

Guida contributor

Direzione di ricerca: Indagare la tempistica dell'inizializzazione di NettyConnectionClient e degli aggiornamenti della cache locale di Nacos. Tracciare il flusso di sottoscrizione per identificare perché i servizi più recenti non vengono percepiti quando un'istanza va offline durante l'impostazione della connessione.
Tech stack: java
Dominio: backendapidistributed systems
Tipo issue: Bug
Difficoltà: 3
Tempo stimato: 1-2 giorni
Stato attività: Attiva
Chiarezza: Abbastanza chiara
Prerequisiti: JavaDubboNetty
Adatta ai principianti: 45