Setting openfd limit for frr

Installing and Using OpenWrt
1

Hi All,
Im running frr on openwrt ,
currently i have 1152 peers in my config,
for bgp daemon i have setted this config

bgpd_options="   -A 127.0.0.1 --limit-fds 10000"

as well on system i have changed the ulimit

openwrt@openwrt:/tmp# ulimit -n
10000

but process only goes till 1024 fd and then error starts to show up in logs

Fri Jan 24 18:02:01 2025 daemon.err bgpd[18591]: [RZYGD-06VQ1][EC 100663299] [Error] BGP socket accept failed (No file descriptors available); retrying
Fri Jan 24 18:02:01 2025 daemon.err bgpd[18591]: [RZYGD-06VQ1][EC 100663299] [Error] BGP socket accept failed (No file descriptors available); retrying
Fri Jan 24 18:02:01 2025 daemon.err bgpd[18591]: [RZYGD-06VQ1][EC 100663299] [Error] BGP socket accept failed (No file descriptors available); retrying
Fri Jan 24 18:02:01 2025 daemon.err bgpd[18591]: [RZYGD-06VQ1][EC 100663299] [Error] BGP socket accept failed (No file descriptors available); retrying
Fri Jan 24 18:02:01 2025 daemon.err bgpd[18591]: [RZYGD-06VQ1][EC 100663299] [Error] BGP socket accept failed (No file descriptors available); retrying
Fri Jan 24 18:02:01 2025 daemon.err bgpd[18591]: [RZYGD-06VQ1][EC 100663299] [Error] BGP socket accept failed (No file descriptors available); retrying
Fri Jan 24 18:02:01 2025 daemon.err bgpd[18591]: [RZYGD-06VQ1][EC 100663299] [Error] BGP socket accept failed (No file descriptors available); retrying
Fri Jan 24 18:02:01 2025 daemon.err bgpd[18591]: [RZYGD-06VQ1][EC 100663299] [Error] BGP socket accept failed (No file descriptors available); retrying
Fri Jan 24 18:02:01 2025 daemon.err bgpd[18591]: [RZYGD-06VQ1][EC 100663299] [Error] BGP socket accept failed (No file descriptors available); retrying
Fri Jan 24 18:02:01 2025 daemon.err bgpd[18591]: [RZYGD-06VQ1][EC 100663299] [Error] BGP socket accept failed (No file descriptors available); retrying
Fri Jan 24 18:02:01 2025 daemon.err bgpd[18591]: [RZYGD-06VQ1][EC 100663299] [Error] BGP socket accept failed (No file descriptors available); retrying
Fri Jan 24 18:02:01 2025 daemon.err bgpd[18591]: [RZYGD-06VQ1][EC 100663299] [Error] BGP socket accept failed (No file descriptors available); retrying
Fri Jan 24 18:02:01 2025 daemon.err bgpd[18591]: [RZYGD-06VQ1][EC 100663299] [Error] BGP socket accept failed (No file descriptors available); retrying
Fri Jan 24 18:02:01 2025 daemon.err bgpd[18591]: [RZYGD-06VQ1][EC 100663299] [Error] BGP socket accept failed (No file descriptors available); retrying
Fri Jan 24 18:02:01 2025 daemon.err bgpd[18591]: [RZYGD-06VQ1][EC 100663299] [Error] BGP socket accept failed (No file descriptors available); retrying

process shows limit of 1024 in ps

NEAdmin@IGR_DC_NE-60:/tmp# cat /proc/18591/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                    unlimited            bytes
Max resident set          unlimited            unlimited            bytes
Max processes             62800                62800                processes
Max open files            1024                 4096                 files
Max locked memory         65536                65536                bytes
Max address space         unlimited            unlimited            bytes
Max file locks            unlimited            unlimited            locks
Max pending signals       62800                62800                signals
Max msgqueue size         819200               819200               bytes
Max nice priority         0                    0
Max realtime priority     0                    0
Max realtime timeout      unlimited            unlimited            us

Plese help on this

2 
opkg update
opkg install prlimit
prlimit --pid 18591 --nofile=4096:4096
3

Hi @pavelgl
Thanks for the suggestion
I have already created a script and which is monitoring bgp daemon and setting new ulimit, but is there any convenientional way in openwrt by which I can set this,
I have seen that procd has option for setting this up but FRR manages processes with its own watchfrr

4

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