Kryptronic Software Support Forum

Are there any common mods on the problem sites?

Do you have shell access to the server? If so, issue a killall for cp-app.cgi to kill all of the running instances and then run cp-app.cgi from the shell. How long does it take to execute cp-app.cgi?

Now when you get multiple cp-app's running on your server and it becomes unresponsive, don't issue the killall and just run the problematic cp-app.cgi from the shell. It will likely take up to 60 seconds for cp-app.cgi to run from the shell and then the server should respond normally.

Please don't reply until you have tested this to avoid unnecessary explanations.

I didn't realize you were hosting 60 ccp sites on one server. It wasn't supposed to prove anything. I have had the same symptoms that you have described on client sites before and during the troubleshooting process, I tried to execute the cp-app file from the shell while the server was non-responsive to see if the file would execute without going through apache and it took around 30 seconds for the file to execute and then the server would respond normally as though running the cp-app from the shell somehow reset the Perl interpreter. If it works then you can set a shell script to run cp-app from the shell if the CPU usage gets above x time to get the server running properly or you can continue to try to find the cause but I had no need to continue troubleshooting as the shell execution solved the problem and it never returned.