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MySQL occasional Caton

2022-04-23 06:09:00 【commonBean】

redo log Of write pos Refers to the writing position ,checkpoint Previously, it means that the erasure is finished . When write pos and checkpoint When we meet, it means redo log It's full .
At this time, the database will stop executing the update statement , Turn to redo log Log synchronization to disk . At this point, the database update request will get stuck .

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