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: Error: service(imap): fork() failed: Resource temporarily unavailable (ulimit -u 257577 reached?) Sep 16 09:17:00 dovecot4 dovecot: master: Error: service(doveadm): fork() failed: Resource temporarily unavailable (ulimit -u 257577 reached?) Sep 16 09:17:02 dovecot4 dovecot: master: Error: service(doveadm): fork() failed: Resource temporarily unavailable (ulimit -u 257577 reached?) Sep 16 09:17:02 dovecot4 dovecot: master: Error: service(pop3): fork() failed: Resource temporarily unavailable (ulimit -u 257577 reached?) Sep 16 09:17:02 dovecot4 dovecot: master: Error: service(imap): fork() failed: Resource temporarily unavailable (ulimit -u 257577 reached?) Sep 16 09:17:04 dovecot4 dovecot: master: Error: service(imap): fork() failed: Resource temporarily unavailable (ulimit -u 257577 reached?) Other dovecot is debian8 and problem not exists - any idea ?
Hi Limits: Where all working fine: core file size????????? (blocks, -c) 0 data seg size?????????? (kbytes, -d) unlimited scheduling priority???????????? (-e) 0 file size?????????????? (blocks, -f) unlimited pending signals???????????????? (-i) 257970 max locked memory?????? (kbytes, -l) 64 max memory size???????? (kbytes, -m) unlimited open files????????????????????? (-n) 65536 pipe size??????????? (512 bytes, -p) 8 POSIX message queues???? (bytes, -q) 819200 real-time priority????????????? (-r) 0 stack size????????????? (kbytes, -s) 8192 cpu time?????????????? (seconds, -t) unlimited max user processes????????????? (-u) 257970 virtual memory????????? (kbytes, -v) unlimited file locks????????????????????? (-x) unlimited with new debian9: core file size????????? (blocks, -c) 0 data seg size?????????? (kbytes, -d) unlimited scheduling priority???????????? (-e) 0 file size?????????????? (blocks, -f) unlimited pending signals???????????????? (-i) 257577 max locked memory?????? (kbytes, -l) 64 max memory size???????? (kbytes, -m) unlimited open files????????????????????? (-n) 1024 pipe size??????????? (512 bytes, -p) 8 POSIX message queues???? (bytes, -q) 819200 real-time priority????????????? (-r) 0 stack size????????????? (kbytes, -s) 8192 cpu time?????????????? (seconds, -t) unlimited max user processes????????????? (-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 > # 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: Error: service(imap): fork() > failed: Resource temporarily unavailable (ulimit -u 257577 reached?) > Sep 16 09:17:00 dovecot4 dovecot: master: Error: service(doveadm): > fork() failed: Resource temporarily unavailable (ulimit -u 257577 reached?) > Sep 16 09:17:02 dovecot4 dovecot: master: Error: service(doveadm): > fork() failed: Resource temporarily unavailable (ulimit -u 257577 reached?) > Sep 16 09:17:02 dovecot4 dovecot: master: Error: service(pop3): fork() > failed: Resource temporarily unavailable (ulimit -u 257577 reached?) > Sep 16 09:17:02 dovecot4 dovecot: master: Error: service(imap): fork() > failed: Resource temporarily unavailable (ulimit -u 257577 reached?) > Sep 16 09:17:04 dovecot4 dovecot: master: Error: service(imap): fork() > failed: Resource temporarily unavailable (ulimit -u 257577 reached?) > > Other dovecot is debian8 and problem not exists - any idea ?
Hi, perhaps this? > with new debian9: > open files (-n) 1024 Regards Urban Am 16.09.20 um 12:57 schrieb Maciej Milaszewski:> Hi > Limits: > > Where all working fine: > > core file size????????? (blocks, -c) 0 > data seg size?????????? (kbytes, -d) unlimited > scheduling priority???????????? (-e) 0 > file size?????????????? (blocks, -f) unlimited > pending signals???????????????? (-i) 257970 > max locked memory?????? (kbytes, -l) 64 > max memory size???????? (kbytes, -m) unlimited > open files????????????????????? (-n) 65536 > pipe size??????????? (512 bytes, -p) 8 > POSIX message queues???? (bytes, -q) 819200 > real-time priority????????????? (-r) 0 > stack size????????????? (kbytes, -s) 8192 > cpu time?????????????? (seconds, -t) unlimited > max user processes????????????? (-u) 257970 > virtual memory????????? (kbytes, -v) unlimited > file locks????????????????????? (-x) unlimited > > > with new debian9: > > core file size????????? (blocks, -c) 0 > data seg size?????????? (kbytes, -d) unlimited > scheduling priority???????????? (-e) 0 > file size?????????????? (blocks, -f) unlimited > pending signals???????????????? (-i) 257577 > max locked memory?????? (kbytes, -l) 64 > max memory size???????? (kbytes, -m) unlimited > open files????????????????????? (-n) 1024 > pipe size??????????? (512 bytes, -p) 8 > POSIX message queues???? (bytes, -q) 819200 > real-time priority????????????? (-r) 0 > stack size????????????? (kbytes, -s) 8192 > cpu time?????????????? (seconds, -t) unlimited > max user processes????????????? (-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 >> # 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: Error: service(imap): fork() >> failed: Resource temporarily unavailable (ulimit -u 257577 reached?) >> Sep 16 09:17:00 dovecot4 dovecot: master: Error: service(doveadm): >> fork() failed: Resource temporarily unavailable (ulimit -u 257577 reached?) >> Sep 16 09:17:02 dovecot4 dovecot: master: Error: service(doveadm): >> fork() failed: Resource temporarily unavailable (ulimit -u 257577 reached?) >> Sep 16 09:17:02 dovecot4 dovecot: master: Error: service(pop3): fork() >> failed: Resource temporarily unavailable (ulimit -u 257577 reached?) >> Sep 16 09:17:02 dovecot4 dovecot: master: Error: service(imap): fork() >> failed: Resource temporarily unavailable (ulimit -u 257577 reached?) >> Sep 16 09:17:04 dovecot4 dovecot: master: Error: service(imap): fork() >> failed: Resource temporarily unavailable (ulimit -u 257577 reached?) >> >> Other dovecot is debian8 and problem not exists - any idea ?