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.

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HAproxy reached system memory limit at 98438 sockets

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