Auth process sometimes stop responding after upgrade

[Simone Lazzaris]

In data venerdì 7 settembre 2018 10:06:00 CEST, Sami Ketola ha scritto:
> > On 7 Sep 2018, at 11.00, Simone Lazzaris <s.lazzaris at interactive.eu>
> > wrote:
> > 
> > 
> > The only suspect thing is this:
> > 
> > Sep  6 14:45:41 imap-front13 dovecot: director: doveadm: Host
> > 192.168.1.142
> > vhost count changed from 100 to 0
> > Sep  6 14:45:41 imap-front13 dovecot: director: doveadm: Host
> > 192.168.1.143
> > vhost count changed from 100 to 0
> > Sep  6 14:45:41 imap-front13 dovecot: director: doveadm: Host
> > 192.168.1.219
> > vhost count changed from 100 to 0
> > 
> > Nothing on the other system logs (e.g. kernel, daemon, syslog, messages
> > ....).
> Any idea what is changing the vhost count on the backends? Do you have some
> script running that possibly does change the vhost count for some
> triggering event?
> 
> Sami

Actually, I have a poolmon script running that should drop vhost count for 
unresponsive backends; the strage thing is, the backends are NOT unresponsive, 
they are working as ususal.


To be honest, the configuration that keep failing (again, right now) has imap-
login not configured as I've told you. The configuration you saw was an 
attempt to overcame the problem, in which I've set pop3-login like this:

service pop3-login {
  executable = imap-login director
  service_count = 0
  vsz_limit = 128 M
}

But the machines that fails are like this:

service pop3-login {
  executable = pop3-login director
}

I've got 4 VM configured in the ring. The one with service_count=0 has (so 
far) never failed, the other 3 has failed multiple time (every few hours).

-- 
*Simone Lazzaris*
*Qcom S.p.A.*