Can you enable 'verbose_proctitle=yes' and maybe compare with ss -tp output?
Aki > On 08/01/2020 11:58 Eirik Rye <r...@domeneshop.no> wrote: > > > On 08/01/2020 10:49, Eirik Rye wrote: > > [...] > > In any case, the biggest issue is the one described in the original > message in this thread, where logins are periodically failing for many > for users: > > 2020-01-08T10:54:57.436400+01:00 imap dovecot: imap-login: Error: > master(imap): net_connect_unix(imap) failed: Resource temporarily > unavailable - http://wiki2.dovecot.org/SocketUnavailable > 2020-01-08T10:54:57.437550+01:00 imap dovecot: imap-login: Internal > login failure > > At the same time: > > ~# ps aux | grep "dovecot/imap$" | wc -l > 6637 > ~# doveadm process status | grep "^imap " | wc -l > 6660 > ~# cat /proc/`pidof dovecot`/limits | grep "open files" > Max open files 32768 32768 files > ~# doveconf -n > [...] > service imap-login { > client_limit = 2500 > inet_listener imap { > port = 143 > } > inet_listener imaps { > port = 993 > ssl = yes > } > process_limit = 16 > process_min_avail = 16 > service_count = 0 > vsz_limit = 512 M > } > service imap { > client_limit = 1 > process_limit = 20000 > } > > -- > Eirik
