[GitHub] [dubbo] lt964709769 opened issue #5125: provider在网络波动恢复后，有可能无法正确恢复在zookeeper中的注册信息

["lt964709769 (GitHub)" <gi...@apache.org>]

- [x] I have searched the [issues](https://github.com/apache/dubbo/issues) of this repository and believe that this is not a duplicate.
- [ ] I have checked the [FAQ](https://github.com/apache/dubbo/blob/master/FAQ.md) of this repository and believe that this is not a duplicate.

### Environment

* Dubbo version: 2.6.X
* Operating System version: linux
* Java version: 1.8

### Steps to reproduce this issue

1.修改zookeeper源码，在 SessionTrackerImpl 的 设置session过期状态 与 清理session临时节点 代码中增加30s延迟，以模拟网络波动导致标记session过期与清理临时节点不同步的情况。以源码的方式启动zookeeper。
2.修改CuratorZookeeperClient，设置session过期时间为 5s ，并在createEphemeral中增加日志打印，当抛出NodeExistsException时，输出EphemeralOwner与当前的sessionId
3.启动provider，并确保provider的临时节点已注册到zookeeper中。
4.断开provider与zookeeper的网络连接，等待5s session过期后，恢复网络连接。

### Expected Result

EphemeralOwner 与 sessionId 未被输出，或输出的 EphemeralOwner 与 sessionId 相同。等待一段时间后，provider的注册信息在zookeeper中仍然存在。

### Actual Result

可以观察到日志打印的 EphemeralOwner 与 sessionId 不同，等待一段时间后，provider的注册信息被删除，且不再恢复。此时consumer调用时无法找到此provider。



[ Full content available at: https://github.com/apache/dubbo/issues/5125 ]
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[GitHub] [dubbo] lt964709769 closed issue #5125: provider在网络波动恢复后，有可能无法正确恢复在zookeeper中的注册信息

["lt964709769 (GitHub)" <gi...@apache.org>]

[ issue closed by lt964709769 ]

[ Full content available at: https://github.com/apache/dubbo/issues/5125 ]
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