afd

Accrual Failure Detector

install

$ npm install afd

$ component install kordon/afd

example

var afd = require('afd')
var peers = {}

server.on('message', function(msg) {
  if(msg.type !== 'ping') return
  if(!peers[server.id]) peers[server.id] = afd()
  peers[server.id].report()
})

setInterval(function() {
  Object.keys(peers).forEach(function (id) {
    if(peers[id].phi() > 8) console.error('Node %s has probably failed!', id)
    else console.log('Node %s is alive!', id)
  })
}, 1000)

documentation

license

• Original racker/node-failure-detector code is under the MIT license
• Updates from Rackspace are under the Apache 2.0 license
• Original bpot/node-gossip code is under the MIT license
• Updates from kordon/afd are under the MIT license