Am 18.07.2014 00:58, schrieb Will Yardley:

When restarting Dovecot 2.2.10 (via atrpms) on RHEL 6, I get the error: Warning: fd limit (ulimit -n) is lower than required under max. load (1024 < 4096), because of default_client_limit

# doveconf default_internal_user default_internal_user = dovecot

Should dovecot print this warning based on $default_internal_user, or based on root?

As root: # ulimit -n 1024

As user dovecot: $ ulimit -n 49152 $ whoami dovecot

# grep dovecot /etc/security/limits.conf dovecot hard locks 49152 dovecot hard nofile 49152 dovecot hard maxlogins 8192 dovecot soft locks 49152 dovecot soft nofile 49152 dovecot soft maxlogins 8192

that all is not applied to services started by init scripts you need the ulimit command inside a from the init script *sourced* file or use something like systemd with native settings

http://superuser.com/questions/454465/make-ulimits-work-with-start-stop-daem...

http://www.freedesktop.org/software/systemd/man/systemd.exec.html LimitCPU=, LimitFSIZE=, LimitDATA=, LimitSTACK=, LimitCORE=, LimitRSS=, LimitNOFILE=, LimitAS=, LimitNPROC=, LimitMEMLOCK=, LimitLOCKS=, LimitSIGPENDING=, LimitMSGQUEUE=, LimitNICE=, LimitRTPRIO=, LimitRTTIME=

These settings control various resource limits for executed processes. See setrlimit(2) for details. Use the string infinity to configure no limit on a specific resource.