[root@localhost /]# docker pull emqx/emqx:v4.4.2 Error response from daemon: Get https://registry-1.docker.io/v2/: net/http: request canceled while waiting for connection (Client.Timeout exceeded while awaiting headers)

EMQX
1

[root@localhost /]# docker pull emqx/emqx:v4.4.2
Error response from daemon: Get https://registry-1.docker.io/v2/: net/http: request canceled while waiting for connection (Client.Timeout exceeded while awaiting headers)

2

检查下你连 docker.io 的网络吧。
PS：4.4.2 早就过了维护周期了。建议升级 。