HAproxy reached system memory limit at 98438 sockets

Rickard_505 · August 22, 2023, 9:13am

…Please check system tunables.

anyone have a clue
exactly what tunable(s) is to be tweaked?

I seem to fail finding info in the documentation about this

lukastribus · August 23, 2023, 4:52pm

Its the kernel returning ENOBUFS or ENOMEM on file descriptor operations:

haproxy/haproxy/blob/master/src/proto_tcp.c#L318


      
          			send_log(be, LOG_EMERG,
          				 "Proxy %s reached system FD limit (maxsock=%d). Please check system tunables.\n",
          				 be->id, global.maxsock);
          		}
          		else if (errno == EMFILE) {
          			conn->err_code = CO_ER_PROC_FDLIM;
          			send_log(be, LOG_EMERG,
          				 "Proxy %s reached process FD limit (maxsock=%d). Please check 'ulimit-n' and restart.\n",
          				 be->id, global.maxsock);
          		}
          		else if (errno == ENOBUFS || errno == ENOMEM) {
          			conn->err_code = CO_ER_SYS_MEMLIM;
          			send_log(be, LOG_EMERG,
          				 "Proxy %s reached system memory limit (maxsock=%d). Please check system tunables.\n",
          				 be->id, global.maxsock);
          		}
          		else if (errno == EAFNOSUPPORT || errno == EPROTONOSUPPORT) {
          			conn->err_code = CO_ER_NOPROTO;
          		}
          		else
          			conn->err_code = CO_ER_SOCK_ERR;

Looks like you are running out of memory. If you want to share more details about your setup, your configuration, maybe we can make some suggestions.

Topic		Replies	Views
Theoretical limits for a HAProxy instance Help!	2	855	January 24, 2023
How does Ulimit-n computation works? Help!	6	11923	June 14, 2018
Connections stopping after 2,000 connections Help!	1	5521	August 11, 2017
Haproxy keep increase used memory until OOM Help!	9	4671	November 11, 2019
HAProxy memory usage reaches 75.7% Help!	3	960	September 21, 2023

HAproxy reached system memory limit at 98438 sockets

Related topics