Periodically backup new sections of the oplog for incremental backups.

Reads the oplog from a replica set and replays it to another mongo instance / rs.

mongo_persist

Mass populate MongoDB.

Rackable mongoDB based session management

Note: this gem is no longer offically supported by 10gen. For a list of MongoDB object mappers, see http://is.gd/gdehy

mongo-retry helper

Small Object Document Mapper for Mongo. you can update atomic with condition

Some tools and libraries to simplify tailing the mongod oplog

The micro ODM for Mongo. It is a full featured, repository-based ODM that doesnt get in the way.

Adds scope methods to Mongo::Collection. Inspired by Searchlogic.

Accepts and serves arbitrary namespaced queue entries atomically on a FIFO basis

A simple front-end for high performance aggregate counter stores in mongodb

Rack session store for MongoDB

Provide a syntatic sugar for MongoDB ruby driver, similar to an ORM.

Standalone mongo test server for use with rspec or other unit testing framework

ODM framework for MongoDB

Track audit trails in MongoDB

Yet another mongo wrapper library.

Simple data viewer for MongoDB with Sinatra