Comments on: Process Watchdog http://ertw.com/blog/2006/09/26/process-watchdog/ Just another WordPress weblog Thu, 26 Aug 2010 15:52:05 +0000 http://wordpress.org/?v=2.9.2 hourly 1 By: Rich http://ertw.com/blog/2006/09/26/process-watchdog/comment-page-1/#comment-104344 Rich Tue, 09 Feb 2010 15:54:08 +0000 http://ertw.com/blog/2006/09/26/process-watchdog/#comment-104344 Sean, thanks for the simple yet effective script. Thought I would post a warning for users, however. If you use this in a cronjob, do NOT put the name of the process you are looking for in the name of the cron. This will cause a false positive, and the script will not know that your server has gone away. For example, I had a cron job named "watch_httpd", and I couldnt figure out why when i would run the commands manually it worked perfect, but if I ran the cron, it wouldnt work. Well, it saw the process named "watch_httpd" and thought the server was up. I'm ashamed to say it took me 2 minutes to implement this script, and an hour to figure out the above issue. Thanks again! Sean, thanks for the simple yet effective script.

Thought I would post a warning for users, however. If you use this in a cronjob, do NOT put the name of the process you are looking for in the name of the cron. This will cause a false positive, and the script will not know that your server has gone away.

For example, I had a cron job named “watch_httpd”, and I couldnt figure out why when i would run the commands manually it worked perfect, but if I ran the cron, it wouldnt work. Well, it saw the process named “watch_httpd” and thought the server was up.

I’m ashamed to say it took me 2 minutes to implement this script, and an hour to figure out the above issue.

Thanks again!

]]> By: sean http://ertw.com/blog/2006/09/26/process-watchdog/comment-page-1/#comment-16188 sean Thu, 08 Mar 2007 02:20:48 +0000 http://ertw.com/blog/2006/09/26/process-watchdog/#comment-16188 Smartass! :) Run it through inittab if you're worried, at least if init fails you've got bigger things to worry about! Smartass! :) Run it through inittab if you’re worried, at least if init fails you’ve got bigger things to worry about!

]]> By: john http://ertw.com/blog/2006/09/26/process-watchdog/comment-page-1/#comment-16017 john Tue, 06 Mar 2007 22:04:44 +0000 http://ertw.com/blog/2006/09/26/process-watchdog/#comment-16017 And what watches the watchdog? /usr/local/sbin/watchdog.sh watchdog watchdog heh.. =) And what watches the watchdog?

/usr/local/sbin/watchdog.sh watchdog watchdog

heh.. =)

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