Chapter 11. Replication
Like many of its relational cousins, MongoDB supports the replication of a database's contents to another server in realtime or near realtime. MongoDB's replication features are simple to set up and use. They are also one of the key features in MongoDB that bolster the claim that the database is both a Web 2.0 and a cloud-based datastore.
There are many scenarios where you might want to use replication, so the replication support in MongoDB has to be sufficiently flexible that it can cope with all of them. 10gen, the company that publishes MongoDB, has gone to great lengths to make sure that its implementation of replication meets all of today's needs.
In this chapter, we will cover the following replication topologies that ...