乐观锁是基于比较的无锁并发控制机制

乐观锁是基于比较的无锁并发控制机制。

CAS

mvcc

The general idea is this:

Optimistic locking

Each table you want to implement concurrent access to need a new column: Version. This column is usually an integer or a timestamp. Every time a record in the table changes, its version changes with it.

https://enterprisecraftsmanship.com/posts/optimistic-locking-automatic-retry/

原文地址：https://www.cnblogs.com/feng9exe/p/12162725.html