Today many distributed databases like Cassandra, Riak, and Voldemort use gossip to propagate internal state updates. But gossip protocols have been around since the 90s, and have been used in many systems such as wireless networks, sensors, and of course, in internet routing. Gnutella is a great entrance point into gossip because it's one of the simplest gossip protocols that was used in production. Then, in the assignment, you'll get to build your own Gnutella-esque protocol.

In this lesson, we'll start by delving into the theory of gossip protocols. Credit: WikimediaĪs a fairly simple gossip-based P2P protocol, Gnutella's networking design is a good blueprint for understanding Bitcoin. It was most popularly implemented in the file sharing application LimeWire. You should not install any new apps on this system.Gnutella was one of the very first decentralized file sharing protocols to emerge after the death of Napster.

07:49:19 cardpuncher: Ouch, the web interface of the Freedombox tells 'System is low on memory: 76.9% used, 230.3 MiB free.

07:35:17 cardpuncher: and for what it's worth top currently returns 89.8% CPU and 26.4% RAM usage for gtkg.

07:25:03 cardpuncher: ram, my cable provider gives me 5 Mbps of upload, and I allocated 2 Mbps of that to gtkg.

07:18:30 ram: cardpuncher: if you have b/w, you should increase the amount of leaves to 700 perhaps?.

06:57:46 cardpuncher: The hardware page:.

06:53:36 cardpuncher: It's happily running as an ultrapeer now, the status command show the following: says Peers: 343 Ultra 43/50 Leaf 300/300 G2 hub 2/2.

1Ghz dual core armv7l CPU, 1 GB RAM, and no, it's not a Raspberry Pi, contrarily to it, it's open source hardware built by Olimex.

06:52:05 cardpuncher: Hey ram, I can send you the lshw output if you wish.

06:50:13 ram: cardpuncher: is the Freedombox based on Raspberry Pi? What are its characteristics (RAM, CPU speed, etc?).

What was said in freenode #gtk-gnutella on :

Gnutella 2 status