We have setup MongoD instance in replica set mode and java driver in on application server in the same Data Center. (Second set of application servers in another datacenter)

Our payload between server and client is around 300K.
With smaller payloads, around 25K, the time taken to transfer the data between app server and mongod is less than a milli second (Single pass between these two)

With bigger payload (~300K) the client and server communication seems to be taking 16ms. The reason for this delay is due to multiple rounds of data transfer between them.
The time for lookup for different datacenter is around 300ms (due to multiple rounds of data transfer).

In mysql, there is an option to increase the Send/Recieve buffer (So all the data is sent in one shot instead of waiting for the ACK from the client during the transfer everytime)

Is there any such parameter available for MongoD ??

Thanks & Regards

• santhu