On corrupt remote link details in metakv, analytics cluster becomes permanently unusable on restart

In the event the link details stored in metakv become corrupt or deleted (e.g. due to bug, inadvertent user interaction with metakv, etc.), when the primary analytics node restarts, the cluster will become permanently unusable. It does not matter whether or not the link was active (connected) or inactive (disconnected) at the time of the restart.

The only remedy should this occur is to completely remove analytics from the cluster (i.e. failover & remove all analytics nodes), and then add the service back.