Change the binlog format MIXED to ROW I have a database that is running on AWS RDS (MySQl 5.7.22). 

Currently, I have one master and 2 replicas running. My binlog format is MIXED. I have plans to change it to ROW based. 

I want to change it during runtime (live environment) since it's our main database.

Questions


What things do I have to consider before I change it? 
What is the safest way to do it? 
I am just wondering if there will be growth of the binlog size when I change it?
you can use at the runtime.

SET GLOBAL binlog_format = 'ROW';


or for the session

SET SESSION binlog_format = 'ROW';


see the manual for more information.