apache / apache/dubbo

dubbo2.7.7版本使用redis作为注册中心 服务消费者消费旧的服务提供者实例 有什么配置可以解决吗 或者这是一个bug?

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Dominant language
Java
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Description

![image](https://user-images.githubusercontent.com/67223231/199880265-bc0010b1-81b0-4d16-a555-653c85a253db.png)
在redis注册中心有 有大量的过期的消费者ip
![image](https://user-images.githubusercontent.com/67223231/199880360-65e39ebb-039f-4e4b-8c1b-e27d374b51cf.png)
有什么办法能够清除过期下线的服务提供者ip吗

Contributor guide

Open the contributing guide

Research direction

No source file or test is identified. Start by examining the Redis registry behavior for expired consumer and provider IP entries, then trace how Dubbo consumers select provider instances. Done means stale entries are removed or ignored and consumers no longer use offline providers, with a regression test covering the scenario.

Written by the indexing model from the issue text.

Assessment

Tech stack
java, redis
Domain
distributed-systems
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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