docker 意外宕机，PXC启动不了解决方法

1.找出数据卷映射目录
docker inspect v1
[
    {
        "Driver": "local",
        "Labels": {},
        "Mountpoint": "/var/lib/docker/volumes/v1/_data",
        "Name": "v1",
        "Options": {},
        "Scope": "local"
    }
]
2.修改配置文件
vi grastate.dat 
safe_to_bootstrap设置成1

3.重启node节点