In MongoDB docs here, you will find that the listed MongoDB storage engines are:
In-Memory Storage Engine
Are there any other storage engines available? Must be free, or even open ...
The goals are:
Written in Java
Available as a Jar file
Should not need the installation or configuration of a server or a client
Be document-oriented as MongoDB, CouchDB, etc.
Work as in-...
I'm looking for recommendations for an in-memory database for capturing streaming market data state. While the transaction rate may reach into millions/sec, most of these transactions will be updates ...