[Dovecot] Fastest restart of dovecot after upgrade: HOW?:

[Ralf Hildebrandt]

I'm running dovecot under runit:

#!/bin/sh
echo '/var/core/%p' > /proc/sys/kernel/core_pattern
ulimit -n 8096
ulimit -c unlimited
exec /usr/local/sbin/dovecot -F

(that way, together with incron, I can automatically generate the
coredumps I'm posting all the time)

If I apply a patch and recompile, what is the fastest way of
restarting dovecot?

Which part of the process structure can be killed and takes all it's
children with it?

     ├─runsvdir─┬─runsv───ntpd
     │          ├─runsv─┬─dovecot─┬─2*[dovecot-auth]
     │          │       │         ├─1203*[imap]
     │          │       │         ├─64*[imap-login]
     │          │       │         ├─64*[managesieve-log]
     │          │       │         └─64*[pop3-login]
     │          │       └─svlogd

killall dovecot?
Is that guaranteed to wipe out ALL child processes as well?

I had to use (at least in the past):

   sv d /var/service/dovecot
   killall dovecot
   killall -9 imap-login
   ps auxwww|grep dovecot

to make sure everything would be dead...

--
Ralf Hildebrandt
  Geschäftsbereich IT | Abteilung Netzwerk
  Charité - Universitätsmedizin Berlin
  Campus Benjamin Franklin
  Hindenburgdamm 30 | D-12203 Berlin
  Tel. +49 30 450 570 155 | Fax: +49 30 450 570 962
  ralf.hildebrandt at charite.de | http://www.charite.de