Hank is an open-source system for running distributed, highly-scalable, low-latency, batch-writable-only, key-value datastores. You can find a much more detailed description of the project at:

https://docs.google.com/document/d/1enJjeleYlJZWETiceJUGGotzG_5DbysTRytNHi8Tpi0/edit?hl=en&authkey=CIeVw8EE


Something you might find helpful (necessary?) when configuring Curly and Cueball domains:
https://docs.google.com/spreadsheet/ccc?key=0AoDaqRFv7cV0dEtXblNlY1BtZktXRWlhclhxekh0eFE