We added compressors to the Mongo DB driver
Specially if running in a high availability environment with Mongo DB as the state store this configuration settings could significantly reduce the network traffic.
While operating several instances of OTDT over several machines and(/or) geographic zones without hassle is a real advantage ot OTDT, it may come to having the state store - spread over several machines and(/or) zones - slowing down the communications between OTDT and the Mongo DB, specially if the state store hase some more data to carry.
With this configuration setting the compressor libraries of the Mongo DB are enabled and selected and therefore the network traffic and transmission time reduced.