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Hello, > > It does indeed run from systemd, so this is what's currently in the > dovecot unit file ( /etc/systemd/system/dovecot.service ): > ... > [Service] > Type=simple > ExecStart=/usr/sbin/dovecot -F > NonBlocking=yes > TasksMax=10000 > LIMIT_NOFILE=10000 ... the parameter should be named LimitNOFile=10000 (without the underscore), see http://man7.org/linux/man-pages/man7/systemd.directives.7.html and http://man7.org/linux/man-pages/man5/systemd.exec.5.html --Andreas -------------- next part -------------- A non...

...unlimited > file locks????????????????????? (-x) unlimited > > > maby systemd "something has changed" > > and add: > > echo "kernel.pid_max = 50000" >> /etc/sysctl.conf > sysctl -p > systemctl edit dovecot.service > > [Service] > TasksMax=40000 > systemctl daemon-reload > systemctl restart dovecot.service > > cat /sys/fs/cgroup/pids/system.slice/dovecot.service/pids.max > > > Any idea ? > > On 16.09.2020 09:45, Maciej Milaszewski wrote: >> Hi >> I update os from debian8 to debian9 >>...

Hi I update os from debian8 to debian9 # 2.2.36.4 (baf9232c1): /etc/dovecot/dovecot.conf # Pigeonhole version 0.4.24.2 (aaba65b7) # OS: Linux 4.9.0-13-amd64 x86_64 Debian 9.13 All works fine but sometimes I get: Sep 16 09:17:00 dovecot4 dovecot: master: Error: service(pop3): fork() failed: Resource temporarily unavailable (ulimit -u 257577 reached?) Sep 16 09:17:00 dovecot4 dovecot: master:

Dear list, We moved our dovecot installation to a new vm, and ever since there are problems logging in to our imap server during office hours. ( Evenings and weekends are fine. ) Both the new and the old machine are dovecot 2.2.13. Symptoms: Logging in via imap gives: . OK Pre-login capabilities listed, post-login capabilities have more. a login <loginname> <passwd> * OK Waiting for

...ttached debug logs for a VM starting. To repeat the discussion that happened on IRC: - libvirt config does not specify anything related to cgroup_controllers - cgroups are mounted (mount | grep cgroup is not empty) - in libvirtd.service I see no mention of cgroups (apart from comments related to TasksMax and LimitMEMLOCK) I’m suspecting a packaging issue in my distribution (NixOS) but I’m not really sure where I should look at to solve it. NB: the reason I wanted machinectl was to make use of nsswitch mymachines facilities, which I learnt wouldn’t work anyway. So I’m only reporting it in case som...

Hi Maria, It does indeed run from systemd, so this is what's currently in the dovecot unit file ( /etc/systemd/system/dovecot.service ): [Unit] Description=Dovecot IMAP/POP3 email server After=local-fs.target network.target [Service] Type=simple ExecStart=/usr/sbin/dovecot -F NonBlocking=yes TasksMax=10000 LIMIT_NOFILE=10000 [Install] WantedBy=multi-user.target Unfortunately, it doesn't seem to work... Best, gerard On 29-03-17 13:13, Mar?a Arrea wrote: > > If you are running dovecot via systemd, increase NOFILES in the > dovecot startup script > > El 29/03/17 a las...

...as wrote: > > It does indeed run from systemd, so this is what's currently in the > > dovecot unit file ( /etc/systemd/system/dovecot.service ): > > > ... > > [Service] > > Type=simple > > ExecStart=/usr/sbin/dovecot -F > > NonBlocking=yes > > TasksMax=10000 > > LIMIT_NOFILE=10000 > > ... > > the parameter should be named > > LimitNOFile=10000 > > (without the underscore), see > http://man7.org/linux/man-pages/man7/systemd.directives.7.html and > http://man7.org/linux/man-pages/man5/systemd.exec.5.html Als...

...es????????????? (-u) 257577 virtual memory????????? (kbytes, -v) unlimited file locks????????????????????? (-x) unlimited maby systemd "something has changed" and add: echo "kernel.pid_max = 50000" >> /etc/sysctl.conf sysctl -p systemctl edit dovecot.service [Service] TasksMax=40000 systemctl daemon-reload systemctl restart dovecot.service cat /sys/fs/cgroup/pids/system.slice/dovecot.service/pids.max Any idea ? On 16.09.2020 09:45, Maciej Milaszewski wrote: > Hi > I update os from debian8 to debian9 > > # 2.2.36.4 (baf9232c1): /etc/dovecot/dovecot.conf &g...

...the dovecot process is somewhere near 25% CPU usage when the problem occurs. It is not close to saturating its core from what I can tell. To make sure the issues are not task/fd-limit related, I have set this in /etc/systemd/system/dovecot.service.d/service.conf: [Service] LimitNOFILE=infinity TasksMax=infinity ~# egrep "processes|files" /proc/`pidof dovecot`/limits Max processes 514051 514051 Max open files 1048576 1048576 ~# cat /proc/sys/net/core/somaxconn 65536 ~# cat /proc/sys/kernel/pid_max 278528 Dovecot is configured with NFS b...

Hi, After upgrading Dovecot from version 2.2.27 to 2.3.9.2, we are sporadically seeing lots of these errors in the error log on many of our servers: imap-login: Error: master(imap): net_connect_unix(imap) failed: Resource temporarily unavailable - http://wiki2.dovecot.org/SocketUnavailable The issue is causing significant delays and/or timeouts on login. From what I can tell, this