liaojuntao

app.conf配置外置etcd三节点集群地址，当外置etcd一个节点故障时，无法连接etcd

2

**Describe the bug** app.conf配置外置etcd三节点集群地址，当外置etcd一个节点故障时，无法连接etcd **To Reproduce** Steps to reproduce the behavior: 1. app.conf配置外置etcd三节点集群地址 2. 启动外置etcd后，让etcd出现单节点故障，但集群是可服务的 3. 启动servicecomb-service-center服务 4. 发现servicecomb无法连接etcd **Expected behavior** etcd集群正常，servicecomb应该要可以连上集群正常工作 **Platform And Runtime (please complete the following information):**...