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Decentralized Remotely Accessed Memory
Ever joked about downloading more RAM? 🤣 WELL NOW YOU CAN MOTHER FUCKER!
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.
Go insane with it & donate RAM from multiple machines...decentralize the RAM of a single server all over the planet! Latency is the devil 😈 LOL
The make-it-happen Magic
Setup RAM Donator
- Create an entry in
/etc/fstab
to 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/exports
file:
/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/fstab
to 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.