Distributed configuration with the key value store

As we've read, one of the fundamental protocols of the Consul system is the gossip protocol, enabling each Consul agent within the system to share information with all others. The information is centrally located and managed by the Consul server cluster, but all agents (who are properly authorized if required) have access to that data. Through a very simple KV interface, Consul provides this ability to distribute intelligence to all entities interacting with the system. Although this provides a very easy way to distribute information, Consul isn't a fully featured distributed data store. Objects within the KV system have a maximum size of 512 KB, and the data only persists to the local data center. However, this doesn't prevent us from using it to do some pretty cool stuff.

To see the benefit of applying the Consul KV system for configuration adjustments, consider the situation of troubleshooting a distributed application...