3.0 KiB
Decentralized Remotely Accessed Memory
Ever joked about downloading more RAM? 🤣 Well, buckle up, because we're making that meme a reality! Imagine "donating" RAM from one machine to another across a network like a digital octopus 🐙, each tentacle a server sharing a slice of RAM. Each machine becomes both a donor and recipient in this wild, decentralized RAM-sharing bonanza!
Here's the deal: we use a tmpfs on the donor machine to pretend a chunk of its RAM is a hard drive. Then, we get fancy with NFS to share this faux-drive over the network 🌐. On the recipient's side, we mount this networked RAM-drive and set up a swap file - it's like tricking your computer into thinking it's got extra RAM, borrowed from its buddy next door 🤝💻.
The result? A quirky, decentralized memory-sharing network where servers can lend and borrow RAM from each other, sort of like a high-tech, communal memory bank 🏦🧠. It's not just theoretically hilarious, but also a little bit genius in a "why not?" way 😜.
Remember, with great power comes great responsibility... and also the risk of network hiccups turning your RAM-sharing dream into a digital chaos midnight! 💀💾🕛
The make-it-happen Magic
Setup RAM Donator
- Create an entry in
/etc/fstabto create the RAM partition:
tmpfs /mnt/ramote_send tmpfs nodev,nosuid,noexec,nodiratime,size=1G 0 0
Note: Change 1G to the amount of RAM you want to donate.
- Create the RAM partition directory & mount it:
mkdir -p /mnt/ramote_send
mount /mnt/ramote_send
- Download & install an NFS server daemon of your choice:
apt-get install nfs-kernel-server
- Configure & start the NFS server:
- Edit your
/etc/exportsfile:
/mnt/ramote_send <client-ip>(rw,sync,no_root_squash,no_subtree_check)
- Start & enable the service:
systemctl start nfs-kernel-server
systemctl enable nfs-kernel-server
Setup RAM Receiver
- Create a directory & mount the NFS:
mkdir -p /mnt/ramote_recv
mount <nfs-server-ip>:/mnt/ramote_send /mnt/ramote_recv
- Create & enable a swap file inside the NFS directory:
dd if=/dev/zero of=/mnt/ramote_recv/swapfile bs=1M count=1024
chmod 600 /mnt/ramote_recv/swapfile
mkswap /mnt/ramote_recv/swapfile
swapon /mnt/ramote_recv/swapfile
Note: Change the swap file size according to what you allocated on the donator.
- Create an entry in
/etc/fstabto for the NFS mount & the swap file:
<nfs-server-ip>:/mnt/ramote_send /mnt/ramote_recv nfs defaults 0 0
/mnt/ramote_recv/swapfile swap swap defaults 0 0
You can do this across various machines & use multiple swap files for decentralize even more.