Hey folks,

At Room Key we're using Apache Zookeeper and a home-grown clojure library 
called drcfg for real-time application configuration management. We're 
debating open-sourcing drcfg and are trying to gauge community interest in 
such a tool. 

We think it's got great usage semantics, basically you just def an atom in 
any namespace where you'd like a variable that can be changed in real-time 
on a running system. When you define the atom, you can also provide 
defaults to fall back to if zookeeper is unavailable, a validator to be run 
on any value when a change is attempted (to prevent invalid configuration 
data), as well as some meta-data about the variable.

We've also got a web UI we use to change configuration data, but that would 
likely be released separate of drcfg itself.

If anyone's interested, could you reply to this post? I can provide more 
information as well if need be.


-Thomas Steffes @ Room Key



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