Wietse Venema: > natan: > > W dniu 14.01.2022 o?14:54, Wietse Venema pisze: > > > natan: > > >> Hi > > >> I have very strong machine with load average: 2,22, 2,32, 2,19 > > >> > > >> and today i get > > >> > > >> Jan 14 12:34:25 thebe postfix/master[4925]: warning: > > >> master_wakeup_timer_event: service qmgr(public/qmgr): Resource > > >> temporarily unavailable > > >> Jan 14 12:39:25 thebe postfix/master[4925]: warning: > > >> master_wakeup_timer_event: service qmgr(public/qmgr): Resource > > >> temporarily unavailable > > >> > > >> And i don't known where is a problem > > > The Operating System Kernel is telling Postfix that it could not > > > connect to or write to the qmgr socket (typically, located at > > > /var/spool/postfix/public/qmgr). > > > > > > Either Postfix has exceeded some per-process limit, or some Operating > > > System Kernel resource is exhausted. > > > Do you know if the problem is a kernel limit or a per-process limit? > Does master have 4096 open files (including network sockets: ip, > unix-domain, etc.).
BTW that last one was a trick question: you need a huge number of services in master.cf to exceed the 4096 limit. The master needs three sockets for each service with type 'unix' in master.cf; services with type 'inet' require two sockets plus one socket per address in inet_interfaces. Wietse