Note: This blog post is from 2008. Some content may be outdated--though not necessarily. Same with links and subsequent comments from myself or others. Corrections are welcome, in the comments. And I may revise the content as necessary.
There's been a recent point-release update (3.0.1) of FusionReactor, the server monitoring and troubleshooting tool for CF 6, 7, 8 (Standard and Enterprise) and other J2EE servers. You can obtain and install the update
quite easily (or new installations will get the updated release). While there are available
release notes, they're pretty terse in describing the changes. I'd like to elaborate on a couple, from my exploration.
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For those using FR Enterprise, on the Enterprise Settings page, what used to be a single entry for "Network Timeout" in a section of the page called "Remote Instances" is now 3 entries in a section called "Heartbeat Settings for Monitored Instances". That network timeout is now called Heartbeat Timeout, and there is also a "Heartbeat Metrics Fetch Interval" and a "Heartbeat Failure Threshold".
There is considerable text on the screen (and the same is in the online help) explaining each of these new features. The bottom line is that they help improve the process of one monitoring FR instance detecting (for its Enterprise Dashboard and notifications) when another server/instance that it's monitoring has become unavailable. The new settings should help prevent (or help you tune how to prevent) false positives.
Among the additional info offered is a mention of these updates:
o Improved Enterprise Dashboard and UI performance
o Increased stability
o 64-bit support for Windows, Linux, Solaris and OS X
o Support for Flash 10 and AIR 1.5
o Improved support for Railo, Jetty and Open BlueDragon