[jasontedor]

Jason from Elastic here. We are actively developing cross datacenter replication (internally we are calling it "cross cluster replication" so you will likely see it referred to this in the future but of course this is subject to change).

I can not give a timeframe, but it is one of the top features on the ES roadmap. :)

Source: I am an engineer working on this feature.

[bullen]

Maybe you could be inspired by my async-to-async database: https://github.com/tinspin/rupy/wiki/Storage