Hyperdrive – a novel file sharing network

by sgrytoyr • 11 years ago

42 9 11 years ago

nine_k• 11 years ago

«A file sharing network based on rabin file chunking and append only feeds of data verified by merkle trees.»

As far as I understand, this is about efficient verified replication of files, so that only smallest changed chunks are actually replicated (unlike e.g. rsync).

mindslight2• 11 years ago

rsync and Rabin chunking are both based on rolling hashes determining where exactly to cryptohash. rsync operates "in place" and benefits from chunks being in consistent order, whereas Rabin chunking uses precomputation to draw from unordered basis chunks (eg cross-file chunking).

zbjornson• 11 years ago

Pardon my ignorance, but I'm still not quite understanding the applications and benefits. Distributed file hosting? High-concurrency reads? Torrent-like? "file sharing network" is a bit ambiguous to me.

(I seem to have broke the demo with a 100 MB file, btw.)

out_of_protocol• 11 years ago

Any idea how peer discovering work? Can't find any mention of it

mafintosh2• 11 years ago

it's in the README examples. you can use discovery-channel, https://github.com/maxogden/discovery-channel to do peer discovery which in turn uses multicast-dns and the bittorrent dht to find peers.

mankash666• 11 years ago

I'm unable to get the demo [1] to work. I'm using Firefox 42.0 on Mac OS 10.11.12

[1] http://mafintosh.github.io/hyperdrive/

mafintosh2• 11 years ago

yes i haven't tested the demo in firefox yet. there is an open issue for that on the hyperdrive repo. it should work in chrome though and there is no reason it shouldn't work in firefox once i find the bug.

Fice• 11 years ago

Looks similar to IPFS (https://ipfs.io/) but with less ambitious goals. And the IPFS team is also working on JS implementation that will run in browser: https://github.com/ipfs/js-ipfs.

Hyperdrive – a novel file sharing network

Related Stories