[Innodb]no valid checkpoint found

Source: Internet
Author: User

After the InnoDB ibdata* and ib_logfile* are deleted, restarting MySQL will find that the original InnoDB table is lost because the InnoDB data is stored in the ibdata* file,
If you keep ibdata* but will ib_logfile* all deleted, MySQL or can not start, will be the error no valid checkpoint found, this is because the InnoDB is supporting transactions, after the start, MySQL needs some roll forward and rollback operations,
To ensure the consistency of the transaction, but after the ib_logfile* is deleted, cannot guarantee the consistency of the transaction, the end result will cause MySQL not to start.

A word summary: ib_logfile* files are redolog and Archivelog files in Oracle.

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