Mysql Health Check Daemon
mysql-healthcheck is a A simple program designed to run as a daemon to respond to ELB health checks for mysql servers. It checks the query count and slave status to determine if an instance is healthy.
The configuration file is loaded from: /etc/mysql/mysql-healthcheck.cnf and the options are very simple to configure. Example:
[Mysql]
port = 3306
username= user
password = pw
database = db
[HealthCheck]
port = 9999
maxqueries = 150
checkslavestatus # make sure that mysql slave is running