Nacos 下线服务时报错 errCode: 500

caused: errCode: 500, errMsg: do metadata operation failed ;caused: com.alibaba.nacos.consistency.exception.ConsistencyException: com.alibaba.nacos.core.distributed.raft.exception.NoLeaderException: The Raft Group [naming_instance_metadata] did not find the Leader node;caused: com.alibaba.nacos.core.distributed.raft.exception.NoLeaderException: The Raft Group [naming_instance_metadata] did not find the Leader node;

解决:
大概意思就是注册的Ip啥的混乱了.出现这个问题,

1.先停nacos,

2.删掉 data目录下的protocol 文件夹,

3.重启。解决

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