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幂等和清除问题讨论 #332

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zyxxoo opened this issue May 5, 2022 · 0 comments

zyxxoo commented May 5, 2022 •

edited

Question

关于幂等看了历史 issure, 结合tcc代码，目前框架中应该是没有做幂等处理，然后定时恢复任务有用 lock 函数，但看了 redis 的实现感觉无法做到幂等，所以想跟大佬们确认下幂等的问题应该是要业务上自己处理对吧?
假如 try 函数执行成功了，但是更新 trying 状态的时候down了，这个时候貌似走不到恢复（pre_try 会跳过）,定时任务会清理 trans, 不会走 cancel，但是这个场景应该走 cancel, 请问大佬们这个极端场景问题是否存在？

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