I'm wondering if anyone out there has any experience or opinions on monitoring the API Gateway and platform with 3rd party tools, like Nagios. We have ESM but it has a number of problems. It seems it only monitors the root partition, and it's always the myslq drive space that is at risk of filling up, it has a tendency to false alert because it somehow can't determine the operating status, etc. In particular we'd like to monitor our MySQL partition and get an alert if it goes over threshold, and general capacity monitoring. We use Nagios quite a bit for Linux platform monitoring and technically don't see a reason it can't be used on the gateway systems. It has the advantage of already being integrated with our event management systems so we don't have to spend time with SNMP configuration, etc. To date we've avoided installing any third party software on our systems to retain their pure appliance status, but as our traffic grows, and our support team becomes distributed around the world and the clock we're finding it prudent to watch these sorts of stats more closely.