Peer Store

A peer-to-peer data store using dnode

Features

• Fast
  • All data is transfered over dnode
  • Achieve about 1.2k replications/sec
• Replicate mutating operations
• Connections automatically recover
  • Status pings and reconnects are controlled by upnode
• Create smart data buckets for control over replication
  • Prefills buckets with peer data
• Implement your own bucket types
  • Default bucket type is a plain object (pure memory)
  • lru-cache bucket type is operational so you may set size and TTL.
  • LevelDB bucket type in progress...
• Express session store built-in

Installation

npm install peer-store

Usage

Server A at 10.0.2.1:

var PeerStore = require("peer-store");
 
var store = new PeerStore({
  peers: ['10.0.2.2'];
});
 
store.set('foo',42);

Server B at 10.0.2.2:

var PeerStore = require("peer-store");
 
var store = new PeerStore({
  peers: ['10.0.2.1'];
});
 
store.set('bar',7);

On both Sever A and B:

store.getAll(function(data) {
  console.log(data); // { foo: 42, bar: 7 } 
});

Express/Conect session store

In addition to the above, do:

app.use(express.session({
  store: store.sessionStore(),
  secret: 'secr3t'
}));

Now all your sessions are magically shared

API

Todo...

Issues

dnode depends on node-gyp, so in order to npm install on Windows, you'll need to follow the node-gyp Installation guide. Unix and Mac requires python and make so it should just work.

Quick windows links:

• Download Python 2.7.5
• Download Visual C++ Express 2010
• Download Windows 7 SDK (Windows 7 Only)

Credits

Most of the work is being done by substack's dnode