Web Application Monitoring and Restart in JRun
Your webserver is running and JRun is running. Your website is up, right? Not always! There are many issues unrelated to the JRun service that may bring down a website, and vigilant maintenance is necessary. Here is a nice discussion of what to look for, and how to monitor and test your JRun-based website to make sure that web users see your content, and not unwanted error messages.
Web Application Monitoring and Restart in JRun