lignum continue to run even if the consul is down

[NishanthSpShetty]

What

On a multinode cluster

• Node A starts and connects to consul server, no further communication until session renewal.
• Node B starts and see's Node A as leader and registers itself as a follower and starts a leader check routine. This routine frequently checks Consul to see if the leader is still active, if not it starts to try to acquire a lock to become a leader.

Consul goes down

• Node B will start throwing error in leader check routine.
• Node A is unaware of it as there are no active task depending on consul.

I'm quite not sure what should be the behavior of a single node Lignum as leader management doesn't make sense in such scenario