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I have a fast Windows 7 PC with 8Gb RAM. I want to test this MongoDB replica set: http://www.mongodb.org/display/DOCS/Replica+Sets for my development. I dont want to buy 3 PCs though, as it’s kind of expensive. Is there a way to use some kind of technology, like Hyper-V, to be able to set it up? If not, how many PC and what kind should I buy?
You can run multiple mongod processes on the same machine on different ports and pointing to different data directories and make them a part of the same replicaset.
http://www.mongodb.org/display/DOCS/Starting+and+Stopping+Mongo
mongod –dbpath c:/data1 –port 12345 –replSet foo
mongod –dbpath c:/data2 –port 12346 –replSet foo
and then connect to one of the mongod processes using the mongo console and add initiate the replica set using instructions outlined here:
http://www.mongodb.org/display/DOCS/Replica+Sets+-+Basics