Push yourself to learn something every day. If you’re not getting better, you’re getting worse.
Superman didn’t come and save me like you see in the movies. I had to save myself and that involved doing something I didn’t like.
Each MySQL server is master-master replicated onto a backup host in case the primary fails. Our production servers only read/write to the master. I recommend you do the same. It simplifies everything and avoids lagged replication bugs.