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MySQL repair bad block parameter innodb_force_recovery explanation is what, many novices are not very clear about this, in order to help you solve this problem, the following editor will explain in detail for you, people with this need can come to learn, I hope you can gain something.

Innodb_force_recovery can be set to 1-6, and large numbers contain the effects of all previous numbers.

1. (SRV_FORCE_IGNORE_CORRUPT): ignore checked corrupt pages.

2. (SRV_FORCE_NO_BACKGROUND): blocking the running of the main thread, if the main thread needs to perform full purge operations, will result in crash.

3. (SRV_FORCE_NO_TRX_UNDO): no transaction rollback operation is performed.

4. (SRV_FORCE_NO_IBUF_MERGE): merge operations that insert buffers are not performed.

5. (SRV_FORCE_NO_UNDO_LOG_SCAN): without viewing the redo log, the InnoDB storage engine treats uncommitted transactions as committed.

6. (SRV_FORCE_NO_LOG_REDO): roll forward is not performed.

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