Allow Indexes to be created in background

[ahazelwood]

It would be nice to be able to ensure that indexes get created in the background as described on: http://www.mongodb.org/display/DOCS/Indexes#Indexes-BackgroundIndexBuilding Would it be as simple as creating a new property on MongoIndex and then mapping that to the underlying request?

[atheken]

I'm fairly certain that our index creation mechanism is already async, I will research and let you know.

[ahazelwood]

The operation is currently asynchronous, but it locks the database which I believe the background option prevents from happening. Not a big deal on a small database, but on a large (multi-million object) database, it becomes important.