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This topic has been translated from a Chinese forum by GPT and might contain errors.Original topic: 悲观锁乐观锁内存悲观锁
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username: 小于同学
Have you ever used pessimistic locks and optimistic locks in practice?
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username: 小于同学
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username: 
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username: Higher versions only support in-memory pessimistic locks, so business retries need to be added.
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username: The default pessimistic lock and optimistic lock were from earlier versions, and now they can be considered as non-existent.
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username: 
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username: By default, it’s pessimistic. If needed for business, you can try modifying the session or global settings to see if it works.
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username: The current environment is most suitable for pessimistic locking.