A storage backed distributed lock would ensure atomic operations support

[nmondal]

We can practically have any usage, sans the locking. W/O Locking it is impossible to protect any resource. This resource can be anything that gets shared between two processors running on two separate machines.

Say we want to do seat booking with Cowj. It is all good - all w/o any database till we reach the problem of finite amount of seats. That pose a problem.

One solution could be creating a Storage key backed lock. The details needs to be thrashed out and proven.
But the problem exists. Solution is very trivial w/o the storage - just integrate with a Transactional Distributed System.
It is only if we want to avoid those, we get into this problem.

[nmondal]

A very good start is from the iconic guy himself:
https://martin.kleppmann.com/2016/02/08/how-to-do-distributed-locking.html