So keepalived has been around for quite a while now
.... however it is still a mystery to many.
So this is a very simple example of how keepalived can work
with MySQL. Hopefully, this can help those with questions.
We will have a Simple master to slave set up. Meaning.. we write
to one unless we have failover to the second for some
event.
1st - install keepalived
# yum search keepalived keepalived.x86_64 : Load balancer
and high availability service
Name and summary matches only, use "search all" for
everything. # yum -y install keepalived
You should now have an config file
# ls -ltr /etc/keepalived/keepalived.conf
Keep the original as you always backup .. right....
# cp /etc/keepalived/keepalived.conf
/etc/keepalived/keepalived.conf.orig
So you need to figure out an ipaddress you can use for …