Copying a Database

To copy a database within a single mongod process, or between mongod servers, simply connect to the target mongod and use the command() method:

  1. >>> from pymongo import MongoClient
  2. >>> client = MongoClient('target.example.com')
  3. >>> client.admin.command('copydb',
  4.                          fromdb='source_db_name',
  5.                          todb='target_db_name')

To copy from a different mongod server that is not password-protected:

  1. >>> client.admin.command('copydb',
  2.                          fromdb='source_db_name',
  3.                          todb='target_db_name',
  4.                          fromhost='source.example.com')

If the target server is password-protected, authenticate to the “admin” database:

  1. >>> client = MongoClient('target.example.com',
  2. ...                      username='administrator',
  3. ...                      password='pwd')
  4. >>> client.admin.command('copydb',
  5.                          fromdb='source_db_name',
  6.                          todb='target_db_name',
  7.                          fromhost='source.example.com')

See the authentication examples.

If the source server is password-protected, use the copyDatabase function in the mongo shell.

Versions of PyMongo before 3.0 included a copy_database helper method, but it has been removed.