Hi, I'm hosting an intern this summer. One project I've been thinking about is to decouple zab from zookeeper. There are many use cases where you need a quorum based replication, but the hierarchical data model doesn't work well. A smallish (~1GB?) replicated key-value store with millions of entires is one such example. The goal of the project is to decouple the consensus algorithm (zab) from the data model (zookeeper) more cleanly so that the users can define their own data models and use zab to replicate the data.
I have 2 questions: 1. Are there any caveats that I should be aware of? For example, transactions need to be idempotent to allow fuzzy snapshotting. 2. Is this useful? Personally I've seen many use cases where this would be very useful, but I'd like to hear what you guys think. Thanks! --Michi
