I have verified - I can connect to mysql DB from my remote host that I am executing the "pt-online-schema-change" from, to all the servers in the topology. Also - All the servers can connect to each other.
I have verified - I can connect to mysql DB from my remote host that I am executing the "pt-online- schema- change" from, to all the servers in the topology. Also - All the servers can connect to each other.