file-max

sysctl -w fs.file-max=100000

too many open files

• uname, uname -m, lsb_release, hostnamectl, sw_vers (macOS), winver, ver, busybox
• sysctl, -a, -p, -w, vm.swappiness, /etc/sysctl.conf, /etc/sysctl.d/, net.ipv4.ip_forward, OOM, Kernel.shmmax, prlimit