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Webserver Monitoring Software?
I support a web app that crashes... too often. I can bring it back up in about five minutes, but a customer (physician) has to get whitepaged, and call me, before I know about it.
I've tried to monitor the webserver with an app that pings it, and e-mails me if the server is down, but the problem is that the server isn't actually down when it goes down. I need something more specific: does the login page come up when you go to the URL? Or better yet, can you actually log in to the login screen? Any (free) suggestions? |
I don't suppose the web app is an executable (i.e. not Java)?
If so, you could replace that executable with a script that runs the real one and then emails you. You wouldn't need to poll at all. Otherwise, here's something that may work. I thought that some flavors of Unix had equivalent utilities, but I'm not sure. |
What platform is this web app running on? If it's a version of Linux, you can try daemontools (yes, Bernstein is a bit of an ass), or gin up a one-off perl script to monitor the process id and restart it/email you if it dies.
If it's winblows, I got nuthin'. |
Here's a suggestion....
If this is a Windows box, you can easily download wget and write a small script to parse the output from that command in perl or python.
Run the script as a scheduled job every 5 minutes. If the app is down, run an "iisreset" command. If it's Linux/UNIX, you may need to download wget (esp. if you run HP-UX or Solaris), and then write a small script that checks the error status, and if it fails, run an "apachectl restart" or whatever command your webserver needs to restart. That should help you out :). There's even VbScript to do this on the Internet if you look closely enough. Thanks, Mitch |
Yeah I've done that kind of thing with wget. Nagios will check the HTTP service built-in but that's probably overkill for just this one thing.
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@All: Thanks. I think I'll play around with wget, see what I can cook up. Thanks again.
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