Currently hosting drupal websites on linode using apache + php5 fpm+ fastcgi. Among websites one is drupal commerce(max_execution_time,memory_limit are taken care) and all others are low hitting websites.
Now I am thinking about moving only database(some postgres and some mysql) to digitalocean as they are offering ssd.
Linode size is 1gb,8 core
Digitalocean thinking about 1gb,1core,30g SSD(will be upgrade if number of sites increases)
Is it ok to host a webserver on one server and database on another. My main concern is about response time and server load so that usual errors like "mysql server gone away","php memory limit exceeded" etc. can be controlled.