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https://dev.mysql.com/doc/refman/8.4/en/forcing-innodb-recovery.html
For example, you can add the following line to the [mysqld] section of your option file before restarting the server: [mysqld] innodb_force_recovery = 1 For information about using option files, see Section 6.2.2.2, “Using Option Files”. Only ...
https://dev.mysql.com/doc/refman/8.4/en/innodb-enabling-monitors.html
Both the InnoDB Standard Monitor and InnoDB Lock Monitor must be enabled to have InnoDB Lock Monitor data printed periodically. Both the InnoDB standard Monitor and InnoDB Lock Monitor must be enabled to have InnoDB Lock Monitor data printed ...On ...
https://dev.mysql.com/doc/refman/8.4/en/innodb-recovery.html
Recovery from Data Corruption or Disk Failure If your database becomes corrupted or disk failure occurs, you must perform the recovery using a backup. In some cases, apparent database page corruption is actually due to the operating system ...After ...To achieve point-in-time recovery after restoring a backup, you can apply changes from the binary log that occurred after the backup was ...
https://dev.mysql.com/doc/refman/8.4/en/innodb-backup.html
Hot and cold backups are physical backups that copy actual data files, which can be used directly by the mysqld server for faster restore. Using MySQL Enterprise Backup is the recommended method for backing up InnoDB data. Hot Backups The ... The ...
https://dev.mysql.com/doc/refman/8.4/en/innodb-limits.html
The maximum table or tablespace size is impacted by the server's file system, which can impose a maximum file size that is smaller than the internal 64 TiB size limit defined by InnoDB. If you require a larger system tablespace, configure it using ... This section describes limits for InnoDB tables, indexes, tablespaces, and other aspects of the InnoDB storage ...For example, you might hit this limit with a column prefix index of more than 191 ...
https://dev.mysql.com/doc/mysql-em-plugin/en/myoem-metric-innodb-semaphoreactivity-category.html
Lists the InnoDB Semaphore Activity metrics and provides a brief description of each. Table 6.16 InnoDB Semaphore Activity Metrics NameDescriptionMutex Os Waits (Delta) The number of InnoDB semaphore/mutex waits yielded to the OS. Mutex Rounds ...
https://dev.mysql.com/doc/refman/8.4/en/innodb-auto-increment-handling.html
The only circumstance in which InnoDB uses the equivalent of a SELECT MAX(ai_col) FROM table_name FOR UPDATE statement to initialize an auto-increment counter is when importing a table without a .cfg metadata file. To use the AUTO_INCREMENT ...This ... InnoDB provides a configurable locking mechanism that can significantly improve scalability and performance of SQL statements that add rows to tables with AUTO_INCREMENT ...
https://dev.mysql.com/doc/refman/8.4/en/innodb-introduction.html
Key Advantages of InnoDB Its DML operations follow the ACID model, with transactions featuring commit, rollback, and crash-recovery capabilities to protect user data. Each InnoDB table has a primary key index called the clustered index that ...
https://dev.mysql.com/doc/mysql-em-plugin/en/myoem-performance-page-innodb-bufferpool-usage.html
Table 5.8 InnoDB Buffer Pool Performance Page Regions GraphDescriptionBuffer Usage Graphs the amount of megabytes in the InnoDB buffer pool which contain data and the number of megabytes held in dirty pages. The InnoDB Buffer Pool page displays ...
https://dev.mysql.com/doc/mysql-em-plugin/en/myoem-metric-innodb-transactionactivity-category.html
Latest Foreign Key Error The latest foreign key error reported by SHOW ENGINE INNODB STATUS. Lists the InnoDB Transaction Activity metrics and provides a brief description of each. Table 6.18 InnoDB Transaction Activity Metrics ...Current Lock Wait ...