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 ?