Hi Thenx replay:
cat /proc/pidof dovecot/limits
Limit Soft Limit Hard Limit
Units
Max cpu time unlimited unlimited
seconds
Max file size unlimited unlimited
bytes
Max data size unlimited unlimited
bytes
Max stack size 8388608 unlimited
bytes
Max core file size 0 0
bytes
Max resident set unlimited unlimited
bytes
Max processes 357577 357577
processes
Max open files 65536 65536
files
Max locked memory 65536 65536
bytes
Max address space unlimited unlimited
bytes
Max file locks unlimited unlimited
locks
Max pending signals 357577 357577
signals
Max msgqueue size 819200 819200
bytes
Max nice priority 0 0
Max realtime priority 0 0
Max realtime timeout unlimited unlimited
us
Now I change in systemd systemctl edit dovecot.service
[Service] TasksMax=40000 LimitNOFILE=65536 LimitNPROC=357577 LimitNPROCSoft=357577 LimitSIGPENDING=357577 LimitSIGPENDINGSoft=357577 On 16.09.2020 14:17, Urban Loesch wrote:
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 ?