MongoDB README DOCUMENTATION http://www.mongodb.org/ COMPONENTS mongod - The database process. mongos - Sharding controller. mongo - The database shell (uses interactive javascript). BUILDING see docs/building.md RUNNING ./mongod runs the database. Use ./mongod --help to see command line options. NOTES Mongo uses memory mapped files. If built as a 32 bit executable, you will not be able to work with large (multi-gigabyte) databases. However, 32 bit builds work fine with small development databases.