Fix health check in mysql-greg-db
Fix health check in mysql-greg-db

Thanu/mesos-artifacts,pubudu538/mesos-artifacts,Thanu/mesos-artifacts,wso2-incubator/mesos-artifacts,Thanu/mesos-artifacts,pubudu538/mesos-artifacts,wso2-incubator/mesos-artifacts,pubudu538/mesos-artifacts,wso2-incubator/mesos-artifacts