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MySQL 8.0 Reference Manual  /  ...  /  Troubleshooting Recovery Failures

15.21.2 Troubleshooting Recovery Failures

From MySQL 8.0.26, checkpoints and advancing the checkpoint LSN are not permitted until redo log recovery is complete and data dictionary dynamic metadata (srv_dict_metadata) is transferred to data dictionary table (dict_table_t) objects. Should the redo log run out of space during recovery or after recovery (but before data dictionary dynamic metadata is transferred to data dictionary table objects) as a result of this change, an innodb_force_recovery restart may be required, starting with at least the SRV_FORCE_NO_IBUF_MERGE setting or, in case that fails, the SRV_FORCE_NO_LOG_REDO setting. If an innodb_force_recovery restart fails in this scenario, recovery from backup may be necessary. (Bug #32200595)