Paraphrasing https://vladmihalcea.com/how-does-mvcc-multi-version-concurrency-control-work/
In Concurrency Control theory, there are two ways you can deal with conflicts:
- You can avoid them, by employing a pessimistic locking mechanism (e.g. Read/Write locks, Two-Phase Locking)
- You can allow conflicts to occur, but you need to detect them using an optimistic locking mechanism (e.g. logical clock, MVCC) - this is essentially that same concept of "tokens" I was previously exposed to in the context of distributed locks.
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