elector

Elector - simple zookeeper based leader election

Features

• emits leader event when instance has been elected a leader
• emits follower event when instance is a follower
• check using elector.isLeader

Install

npm install --save elector

Usage

const Elector = require('elector')
 
const elector = new Elector({host: 'localhost:2818'})
 
// alternatively pass in zookeeper client
// const elector = new Elector(new zookeeper.createClient('localhost:2818'))
 
// connects to zookeeper and starts the election process
elector.connect()
 
elector.on('leader', function () {
    console.log('I am the supreme leader worship me!')
})
 
elector.on('follower', function () {
    console.log('I am but a lowly follower :(')
})
 
// leave the election and closes zookeeper connection
// do this to leave the election quickly
// elector.disconnect()

License

MIT