vCenter 出现错误:503 Service Unavailable (Failed to connect to endpoint: [class Vmacore::Http::NamedPipeServiceSpec:0x0000000000425160] _serverNamespace = / action = Allow _pipeName =\\.\pipe\vmware-vpxd-webserver-pipe)
重启vCenter的服务 VMware vCenter Configuration Service 即可(它会重启vm的其他相关服务)