zk:set does not force application-specific data elements to be updated on all Fabric8 notes

Issue

An application can use the Zookeeper property resolver to retrieve data values stored in the Zookeeper registry under application-specific keys. For example, an application may use Zookeeper to maintain its own configuration in a way that is accessible to all Fabric8 nodes hosting components of the application.

The Zookeeper registry can be written at the Karaf command line using zk:set. However, such changes may not immediately be available to the application, which may appear to be reading "stale" data from the registry.