I'm having a problem increasing the Postfix 2.5 smtpd process limit to 200. Here's what I have tried so far: 1) /etc/postfix/main.cf: Code: default_process_limit = 200 2) /etc/postfix/master.cf: Code: smtp inet n - - - 200 smtpd 3) /etc/postfix/master.cf: Code: smtp inet n - - - - smtpd -o default_process_limit=200 During heavy traffic or simulation (stress test), the number of smtpd processes reaches the default limit, whereupon the server stops accepting new connections: $ ps -u postfix | wc -l 101 N.B. There are no other bottlenecks in this state (according to atop). Error messages: warning: process /usr/lib/postfix/smtpd pid 25834 exit status 1 warning: /usr/lib/postfix/smtpd: bad command startup -- throttling setuid(105): Resource temporarily unavailable /etc/security/limits.conf: Code: postfix soft nproc 200 postfix hard nproc 300 Could any of you give me a hint, please?
smtpd process limit [SOLVED] Well, evidently the directives in limits.conf are completely ignored in our distribution/setup. As a temporary solution, I placed "ulimit -u 300" in the Postfix init script. 300 smtpd processes can now be spawned, even though the process limit in master is only 200 (!).
