PrinterFS

Distributed filesystem.

Goals

• Spread non-replicated files over many, small-disk, cheap boxes
• Files should be owned by a single node, so contention should be less of a problem
• Simple to configure, setup, keep running. As few bells and whistles as possible.
• DHT
• As safe as possible, make trade-offs for safety over latency when the question arises.

Nice-to-haves

• In-memory LRU cache for files and metadata on every node. Should be configurable.
• Simple rehashing/auto-discovery. If a new node comes online, make sure files that are now in it's keyspace are moved to it from the nodes previous.
• Compression for over-the-wire transfers (LZ4 is pretty easy)

Usage

Installation

Make sure you have your kernel headers available. On Ubuntu, you can do:

sudo apt-get install linux-headers-$(uname -r)

Then you should just be able to:

make
sudo insmod PrinterFS.ko

Uninstallation

sudo rmmod PrinterFS

THE STORY

THE TRUE STORY BEHIND PRINTERFS

SON: "DAD, WHAT IS SPACE?"

DAD: "SON, PRINTERFS IS SPACE. IT IS ALL OF THE SPACE AT THE CLOUD OF THE SCALING VECTOR."

SON: "BUT DAYD WHYFOR NOT HAVE FOOT FOR EATING!"

DAD: "COMMUNIST CONUTRY IS DIFFERENT. FEAR NOT SON FOR WE WILL REJOICE OFF THE YOKE OF CAPITALIST PIGDOGZ ENSLAVIN US"

SON: "OH ISEE, FATHER JNERULA WILL SAVE ÜS FROM THE PRINTER AND GIVE US FREE AND CLOUD AND HAPPY NOW?"

DAD: "THAT'S RIGHT COMRADE! JOIN FOR TO US CONQUEROR THE WORLDS!"

ZALGO: "HI FRIENDS I AM COME TO ZALGO AND KILL BECAUSE I AM ZOAMBIE GOAST"

SON: "OHNO, NOT ALL OF DALLUS"

ITWAS TARGET OF WHERE THEYWERE AND IT WASGREAT AND MY FRIENDS LIVES THERE.