Hi, Sorry I didn't include any information about version. My postfix version is 2.3.3 installed from yum (Centos 5).
Yeah, I read about stress mode and it looks really good. Anyway I would rather want to stop reciving connection from postfix than hang the whole server. The problem is, Noel advised me to increase default_process_limit but I've already done it and later postfix hanged with the same message as below. I think the parameter default_destination_recipient_limit is responsible for that. Anyway I created MRTG graph to monitor number of processes, increased children level to 250 and I will see tomorrow on the graph what was the maximum load and how many processes was run. Postfix rather not causes high loads on my server so I can let it to use a lot of resources. Regards, Jarek -----Original Message----- From: owner-postfix-us...@postfix.org [mailto:owner-postfix-us...@postfix.org] On Behalf Of Wietse Venema Sent: Thursday, July 02, 2009 5:34 PM To: Postfix users Subject: Re: Maximum smtp process limit has been reached. Jaroslaw Grzabel: > Hi, > > I'm struggling with new SMTP server and I noticed that sometimes it just > hangs because of: > > Jul 2 14:14:21 smtp postfix/master[17716]: warning: service "smtp" (25) > has reached its process limit "50": new clients may experience > noticeable delays > Jul 2 14:15:06 smtp postfix/master[17716]: warning: to avoid this > condition, increase the process count in master.cf or reduce the service > time per client See also: http://www.postfix.org/STRESS_README.html Wietse
