The orm component need to support multi-node error filtering

[yanhuan0802]

When I set up multiple configNodes in the same configroup, due to some unforeseen reasons, some of the configNodes may become unavailable, and gdb doesn't filter out the unavailable nodes when I do a database operation, which will cause the database operation to fail.

[gqcn]

@yanhuan0802 Sorry for late as I missed some email messages of github. Yes, it's a good proposal, we can choose another node when current node encounters connection issue if multiple nodes provided.

[github-actions]

Hello @yanhuan0802. We like your proposal/feedback and would appreciate a contribution via a Pull Request by you or another community member. We thank you in advance for your contribution and are looking forward to reviewing it!
你好 @yanhuan0802。我们喜欢您的提案/反馈，并希望您或其他社区成员通过拉取请求做出贡献。我们提前感谢您的贡献，并期待对其进行审查。