Details
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Bug
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Resolution: Won't Fix
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Minor - P4
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None
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None
Description
Discuss the general concept of federation, and how mongo support federating databases (across shards) using mongos. http://en.wikipedia.org/wiki/Federated_database
Might want to compare to mysql/postgres: http://dev.mysql.com/doc/refman/5.1/en/federated-storage-engine.html
When you search for mongodb federation, or mongodb federate this page should come up and use familiar terms for those trying to understand how things work in mongodb.