Does consensus from multiple nodes require explicit command line approvals by nodes?

Question

In a running blockchain if my consensus mechanism required 2 nodes out of 3 to approve, how does the second approver know about the pendign transaction?

Assume that this is a self running blockchain and no one is monitoring.

Answer 1

The consensus process runs automatically between the nodes which have mine permissions. There's nothing you need to run on the command line to explicitly approve individual transactions or blocks.