Centralized logging for rails apps using MongoDB. The idea and the core code is from http://github.com/peburrows/central_logger

Rails session stores for Mongoid, or any other ODM. Rails 4 compatible.

Candy provides simple, transparent object persistence for the MongoDB database. Classes that include Candy modules save all properties to Mongo automatically, can be recursively embedded, and can retrieve records with chainable open-ended class methods, eliminating the need for method calls like 'save' and 'find.'

An easy to use distributed web-crawler framework based on Redis

Rack middleware for creating HTTP endpoints for files stored in MongoDB's GridFS

Text classifier with HBase, Cassandra, or Mongo storage

Observe your web applications in the wild! == DESCRIPTION

This plugin provides native MongoDB instrumentation for monitoring and metrics collection, including: service health, database connectivity, replication lag/status, `oplog` monitoring, collection-specific metrics, and more.

Collector gem for snowfinch.

Tenacity provides a database client independent way of specifying simple relationships between models backed by different databases.

Rake task for backing up mongo database on heroku and push it to S3 or FTP. Library can be used as rake task or be easily integrated into daily cron job.

Humongous: A Ruby way to browse and maintain mongo instance. Using HTML5.

A WebRTC signaling server implemented with WebSockets, EventMachine and Redis Pub-Sub

This gem provides asynchronous indexing to Solr for the sunspot gem. It uses a pluggable model for the backing queue and provides support for ActiveRecord, DataMapper, and MongoDB out of the box.

MongoDB DataMapper Adapter

Store rails 3 sessions in mongoDB using a cross-platform format.

Use jQuery's autocomplete plugin with Rails 4.

A network daemon for aggregating statistics (counters and timers), rolling them up, then sending them to graphite or mongo.

ActiveSupport MongoDB Cache store.

Bunyan is a thin ruby wrapper around a MongoDB capped collection, created with high-performance, flexible logging in mind.