A full re-implementation of the Meteor's MongoDB oplog tailing. This time, reactivity is controlled by the app, opening a new world into building reactive applications, highly scalable chat apps, games, and added reactivity for non-persistent data.

Incrementally adoptable & works with your current Meteor project.

If you are looking to scale your business using this package and you need to have your back covered. We are here to help. Feel free to contact-us at [email protected].

meteor add cultofcoders:redis-oplog
meteor add disable-oplog

Configure it via Meteor settings:

// settings.json 
{
    ...
    "redisOplog": {}
}

// default full configuration
{
  ...
  "redisOplog": {
    "redis": {
      "port": 6379, // Redis port
      "host": "127.0.0.1" // Redis host
    },
    "mutationDefaults": {
        "optimistic": false, // Does not to a sync processing on the diffs
        "pushToRedis": true // Pushes to redis the changes by default
    }
    "debug": false, // Will show timestamp and activity of redis-oplog.
    "overridePublishFunction": true // Meteor.publish becomes Meteor.publishWithRedis, set to false if you don't want to override it
  }
}

meteor run --settings settings.json

RedisOplog is fully backwards compatible, so there won't be any change in how you use Meteor, unless you want to fine-tune your application for absolute performance.

To make sure it is compatible with other packages which extend the Mongo.Collection methods, make sure you go to .meteor/packages and put cultofcoders:redis-oplog as the first option.

RedisOplog does not work with insecure package, which is used for bootstrapping your app.

If redis server fails, it will console.error this fact, and it will keep retrying to connect every 30 seconds. Once connection is resumed reactivity will be resumed. However, changes that happened while Redis was down will not be visible. In future we will treat this scenario.

If you are interested in viewing how many observers are registered or memory consumption:

meteor shell
import { RedisOplog } from 'meteor/cultofcoders:redis-oplog';

// works only server-side
RedisOplog.stats()

If you are using optimistic ui in your application, you should give this a read.

Find out what Redis Oplog does behind the scenes

Find out how you can use the advantages of Redis Oplog to make your app very performant.