If you are on linux, would you find these commands helpful ? pgrep master|xargs ps –fp
Example Output: UID PID PPID C STIME TTY TIME CMD root 7437 1 0 2016 ? 00:29:41 /usr/libexec/postfix/master pgrep -u postfix|xargs ps –fp Example Output: UID PID PPID C STIME TTY STAT TIME CMD postfix 7449 7437 0 2016 ? S 52:35 qmgr -l -t fifo -u postfix 7837 7437 0 2016 ? S 0:19 tlsmgr -l -t unix -u postfix 13859 7437 0 05:54 ? S 0:02 scache -l -t unix -u postfix 17144 7437 0 06:36 ? S 0:11 trivial-rewrite -n rewrite -t unix -u postfix 28545 7437 0 Jan03 ? S 0:02 anvil -l -t unix -u postfix 29491 7437 0 09:14 ? S 0:00 pickup -l -t fifo -u postfix 29620 7437 0 09:15 ? S 0:00 smtp -t unix -u postfix 29623 7437 0 09:15 ? S 0:00 smtp -t unix -u postfix 29624 7437 0 09:15 ? S 0:00 smtp -t unix -u postfix 29625 7437 0 09:16 ? S 0:00 smtp -t unix -u postfix 29626 7437 0 09:16 ? S 0:00 smtp -t unix -u postfix 29627 7437 0 09:16 ? S 0:00 smtp -t unix -u postfix 30435 7437 0 09:26 ? S 0:00 smtp -t unix -u postfix 30436 7437 0 09:26 ? S 0:00 smtp -t unix -u postfix 30437 7437 0 09:26 ? S 0:00 smtp -t unix -u postfix 30438 7437 0 09:26 ? S 0:00 smtp -t unix -u postfix 30439 7437 0 09:26 ? S 0:00 smtp -t unix -u postfix 30461 7437 0 09:26 ? S 0:00 smtp -t unix -u postfix 30896 7437 0 09:31 ? S 0:00 smtpd -n smtp -t inet -u -o stress= postfix 30910 7437 0 09:31 ? S 0:00 trivial-rewrite -n rewrite -t unix -u postfix 31302 7437 0 09:35 ? S 0:00 bounce -z -n defer -t unix -u postfix 31303 7437 0 09:35 ? S 0:00 bounce -z -n defer -t unix -u postfix 31304 7437 0 09:35 ? S 0:00 smtp -t unix -u postfix 31305 7437 0 09:35 ? S 0:00 bounce -z -n defer -t unix -u postfix 31306 7437 0 09:35 ? S 0:00 smtp -t unix -u postfix 31307 7437 0 09:35 ? S 0:00 smtp -t unix -u postfix 31323 7437 0 09:36 ? S 0:00 smtp -t unix -u postfix 31324 7437 0 09:36 ? S 0:00 smtp -t unix -u postfix 31325 7437 0 09:36 ? S 0:00 smtp -t unix -u postfix 31326 7437 0 09:36 ? S 0:00 smtp -t unix -u postfix 31340 7437 0 09:36 ? S 0:00 bounce -z -n defer -t unix -u postfix 31437 7437 0 09:37 ? S 0:00 cleanup -z -t unix -u postfix 31439 7437 0 09:37 ? S 0:00 cleanup -z -t unix -u postfix 31441 7437 0 09:37 ? S 0:00 smtpd -n smtp -t inet -u -o stress= postfix 31444 7437 0 09:37 ? S 0:00 smtpd -n smtp -t inet -u -o stress= postfix 31446 7437 0 09:37 ? S 0:00 smtpd -n smtp -t inet -u -o stress= postfix 31451 7437 0 09:37 ? S 0:00 cleanup -z -t unix -u -Angelo Fazzina Operating Systems Programmer / Analyst University of Connecticut, UITS, SSG, Server Systems 860-486-9075 From: owner-postfix-us...@postfix.org [mailto:owner-postfix-us...@postfix.org] On Behalf Of Marco Pizzoli Sent: Wednesday, January 4, 2017 2:45 AM To: Postfix users <postfix-users@postfix.org> Subject: multi-instances: how to discriminate "master" in process list Hi all, I have a multi-instance setup. By doing "ps -ef", as expected, I see a lot of "master" processes. Is there a way to see which master is related to which instance at a glance? So that I can rapidly say this pid is for instance 1, and so on... What I am looking at is, ideally, a way to see the process name something like "master-instance1" i.e. rspamd does exactly this, assigning a different process name just to explicit the "incarnation" of that process Thank you in advance Marco