Error condition on socket for Sync: connection reused

First of all, I shut down the firewall of Linux, and then I didn’t solve it

Close firewall
Start: systemctl start firewalld
Close: systemctl stop firewalld
View Status: systemctl status firewalld
boot disable: systemctl disable firewalld
boot enable: systemctl enable firewalld

Finally, the redis.conf Change bind127.0.0.1 in to 0.0.0.0, so that all IP can be connected

、 

Restart service

from server

master server

You can see that the connection was successful