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

On 21.1.2010, at 16.35, Ralf Hildebrandt wrote:

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?

If you set shutdown_clients=yes. Although even with =no it should stop listening.

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...

I guess there can be bugs.. But in general the processes should notice immediately that master died, and immediately close their listeners and optionally shut down.