A job worker solution that is robust, concurrent and highly available for Node.js using redis.
This is a robust concurrent and highly available job solution, derived from an idea of Flickr's article: Highly Available Real Time Push Notifications and You.
RedisPaidWorker backups any tasks with high availability in two different processes, which maybe in a different server or even a different data center.
var redis = ;var RedisPaidWorker = ;var config =lockTimeout: 100firstAttemptInterval: 10otherAttemptInterval: 30;var redisClient = redis;var worker = config;worker;// lock using redis' hashworker;
RedisPaidWorkertry to acquire same lock but either will win; another will stay.
npm install redis-paired-worker
RedisPairedWorker.hlockto use redis' hash for locks.
(The MIT License)
Copyright (c) 2012 Pokelabo, INC firstname.lastname@example.org
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.