bitly/asyncmongo — pull request #46 by emdagon (2012-05-14 20:42:34+00:00)
Title: Connections queue support

Instead of raise the TooManyConnections exception when maxconnections is reached, the outgoing requests will be queued until a slot become free.

I faced a problem regarding this issue on a high concurrency scenario, I did some tests and seems to work properly.