Redis Master-slave replication failed (Master_link_status:down)

The Master_link_status:down prompt appears when you configure Redis master-slave replication today.

First open the Slave redis.conf configuration file to determine if the slaveof and Masterauth two options are configured correctly.

Then turn off the options for the background process: Daemonize No (most students should set it to Yes for convenience)

The following prompt appears when the slave is restarted:

[10144] 01:04:22 * Connecting to MASTER ...
[10144] 01:04:22 * MASTER <-> SLAVE Sync started
[10144] 01:04:22 * Non blocking Connect for SYNC fired the event.
[10144] 01:04:22 # Unable to AUTH to Master:writing to master:no the route to host

Say that slave is not connected to master, that could be the cause of the firewall. Then use the following command to separate master and slave firewall after the restart, done!

Service Iptables Stop

Redis Master-slave replication failed (Master_link_status:down)