Does bfe support hot-restart and drain connection feature ?

[zhangbo1882]

hot-restart : when you upgrade the bfe version, the traffic should not be affected.
drain connection: if one instance of the cluster need to be upgrade, how to ensure the existing traffic which should go to the instance is not affected ?

[iyangsj]

BFE支持优雅退出：

• BFE实例在优雅退出时，将首先停止接收新连接，然后完成活跃请求的处理后再退出
• 适用于集群模式部署（需控制批量重启并发度，避免变更风险）

参考：https://www.bfe-networks.net/zh_cn/operation/signal/