Extend Swap File
From Jedisaber Wiki
How to Increase Swap Space in Linux
Create a file for swap space
fallocate -l 4G /swapfile_extend_4GB
Set permissions
chmod 600 /swapfile_extend_4GB
Format it for swap
mkswap /swapfile_extend_4GB
Enable swap on it
swapon /swapfile_extend_4GB
Add the following to /etc/fstab:
(So it will persist upon reboot.)
/swapfile_extend_4GB none swap sw 0 0