On 5/20/14, 3:33 PM, Thomas Steffes wrote:
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
Hi Thomas,
I'd be interested in learning more about your solution. Have you ever
ran into the case where a config change needs to restart a component?
If so, have you written the logic that handles the updating of your
entire system based on this change? e.g. a new DB config requires that
your DB component be restarted and each component that relies on the DB
component be restarted as well to get the new connection.
Thanks,
Ben
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