503 and log entry

I've been having some trouble that some sites on one machine crash, Litespeed gives a 503 after that.

I see these entries in the logs:

lscgid: setuid(): Resource temporarily unavailable

and

fork() failed, please increase process limit: Resource temporarily unavailable

What could be the cause of this?

 

You need to increase the "Process soft/hard limit" under "Ruby Rails" tab.

 

I just wanted to share I had been getting lscgid: setuid(): Resource temporarily unavailable since upgrading from LiteSpeed 4.3.3 to 4.3.11, even if I did not get the fork() error.

Increasing the limits solved the problem for me as well.