As I hinted at a couple of weeks ago, MySQL has incorporated the SIGAR (System Information Gathering and Reporting) technology into our MySQL Network Monitoring and Advisory Service. SIGAR gives us a portable way to gether low-level system information so that it can be incorporated into our overall monitoring and advisory service. For example, you can have custom rules and alerts that are based on information from the MySQL Server, from the operating system through SIGAR and so on.
We've been working with Hyperic for a long time and they have proven to be extremely responsive to any changes needed and in pointing out the best way to leverage the SIGAR API. (That is, they never tell us to RTFM even though sometimes that might be what's called for.) They've also introduced a new partner program to make it easier for companies to integrate the Hyperic technology into custom solutions.
Hyperic's technology is a lot broader than just the SIGAR API though. They've developed a complete monitoring system that can examine the entire software stack, including open and closed source software. So if you need to monitor a hybrid environment, say Linux, Apache, WebLogic or Oracle and you don't want to spend the megabucks required to license let alone staff for a Tivoli implementation, then you should look into their full-blown Hyperic HQ monitoring solution.
I'm hoping that the next technology from Hyperic has an even better acronym, like maybe MOJITO? (Monitoring of Java Instances Through Objects?) Or perhaps you can come up with even better suggestions for their marketing guys.