Issue setting limits from Systemd to Haproxy service (1 reply)

Hello,



I try to limit the number of file descriptors using the variable
"LimitNOFILE" inside the following systemd unit:

[Unit]
Description=HAProxy Load Balancer
After=network.target

[Service]
ExecStartPre=/usr/local/sbin/haproxy -f /etc/haproxy/haproxy.cfg -c -q
ExecStart=/usr/local/sbin/haproxy-systemd-wrapper
-f /etc/haproxy/haproxy.cfg -p /run/haproxy.pid
ExecReload=/bin/kill -USR2 $MAINPID
KillMode=mixed
Restart=always
LimitNOFILE=5 # For testing only...

[Install]
WantedBy=multi-user.target



But it only works for the first process spawned, wich is
haproxy-systemd-wrapper:

root 4421 0.0 0.1 17084 1508 ? Ss 10:11
0:00 /usr/local/sbin/haproxy-systemd-wrapper -f /etc/haproxy/haproxy.cfg
-p /run/haproxy.pid
nobody 4423 0.0 0.4 30104 4436 ? S 10:11 0:00
\_ /usr/local/sbin/haproxy -f /etc/haproxy/haproxy.cfg
-p /run/haproxy.pid -Ds
nobody 4424 0.0 0.2 30104 2508 ? Ss 10:11 0:00
\_ /usr/local/sbin/haproxy -f /etc/haproxy/haproxy.cfg
-p /run/haproxy.pid -Ds

# cat /proc/4421/limits
Limit Soft Limit Hard Limit
Units
Max open files 5 5
files

# cat /proc/4423/limits
Limit Soft Limit Hard Limit
Units
Max open files 64013 64013
files

# cat /proc/4424/limits
Limit Soft Limit Hard Limit
Units
Max open files 64013 64013
files



The process who listen in the socket is the last one, 4424, with the bad
settings:

# netstat -ntap | grep haproxy
tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN
4424/haproxy
tcp 0 0 0.0.0.0:8088 0.0.0.0:* LISTEN
4424/haproxy



haproxy-systemd-wrapper would not have to pass these values?

Is it possible to pass the limits from systemd to the listening haproxy
process?


Thanks,