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dubbo框架2.x服务发现本地cache过期导致监听事件任务退出 #415

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Sad-polar-bear opened this issue Jul 26, 2023 · 0 comments
Open

dubbo框架2.x服务发现本地cache过期导致监听事件任务退出 #415

Sad-polar-bear opened this issue Jul 26, 2023 · 0 comments
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描述bug
Dubbo框架2.x服务发现采取subcribe-watch机制，只会在rpc框架启动之初调用一次polaris获取服务发现的全量数据，在此之后如果这些服务发现的数据默认24小时内无变化，便会触发cache删除机制，cache删除的同时会删除掉服务监听事件的Task，从而导致consumer失去对正在调用的provder所属北极星服务的事件监听。
目前发现该过程对如下场景均有不同程度的影响：
1、consumer内部对应的provier所属北极星服务过期之后，重启/升级provider，consumer会调用到该provider对应ip:port未启动的接口上，导致业务报错
@Sad-polar-bear Sad-polar-bear added the bug Something isn't working label Jul 26, 2023
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@Sad-polar-bear