Kubernetes Galera：WSREP：无法打开gcomm后端连接：110：

Question

我正在尝试设置Kubernetes Galera 3副本集。我正在使用：

https://github.com/kubernetes/kubernetes/tree/master/test/e2e/testing-manifests/statefulset/mysql-galera

第一个吊舱旋转得很好，但第二个吊舱卡住了：

1 [ERROR] WSREP: failed to open gcomm backend connection: 110: failed to reach primary view: 110 (Connection timed out)
         at gcomm/src/pc.cpp:connect():162
2018-07-21 18:24:40 1 [ERROR] WSREP: gcs/src/gcs_core.cpp:gcs_core_open():208: Failed to open backend connection: -110 (Connection timed out)
2018-07-21 18:24:40 1 [ERROR] WSREP: gcs/src/gcs.cpp:gcs_open():1379: Failed to open channel 'mysql' at 'gcomm://mysql-0.galera.mysql.svc.cluster.local,mysql-1.galera.mysql.svc.cluster.local': -110 (Connection timed out)
2018-07-21 18:24:40 1 [ERROR] WSREP: gcs connect failed: Connection timed out
2018-07-21 18:24:40 1 [ERROR] WSREP: wsrep::connect(gcomm://mysql-0.galera.mysql.svc.cluster.local,mysql-1.galera.mysql.svc.cluster.local) failed: 7
2018-07-21 18:24:40 1 [ERROR] Aborting

我需要设置etcd才能使该群集正常工作吗？任何建议，将不胜感激。

谢谢！

Kubernetes信息：

Client Version: version.Info{Major:"1", Minor:"11", GitVersion:"v1.11.1", GitCommit:"b1b29978270dc22fecc592ac55d903350454310a", GitTreeState:"clean", BuildDate:"2018-07-17T18:53:20Z", GoVersion:"go1.10.3", Compiler:"gc", Platform:"linux/amd64"}
Server Version: version.Info{Major:"1", Minor:"11", GitVersion:"v1.11.1", GitCommit:"b1b29978270dc22fecc592ac55d903350454310a", GitTreeState:"clean", BuildDate:"2018-07-17T18:43:26Z", GoVersion:"go1.10.3", Compiler:"gc", Platform:"linux/amd64"}