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https://dev.mysql.com/doc/refman/8.0/en/identifier-mapping.html
There is a correspondence between database and table identifiers and names in the file system. For the basic structure, MySQL represents each database as a directory in the data directory, and depending upon the storage engine, each table may be ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-memcached-internals.html
The cache_policies table, config_options table, and containers table are created by the innodb_memcached_config.sql configuration script in the innodb_memcache database. mysql> USE innodb_memcache; Database changed mysql> SHOW TABLES; ... InnoDB API ...The following table outlines how memcached commands are mapped to DML or DDL ...You can specify ...
https://dev.mysql.com/doc/refman/8.0/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/8.0/en/innodb-page-compression.html
For example, if innodb_page_size=16K and the file system block size is 4K, page data must compress to less than or equal to 12K to make hole punching possible. Therefore, page compression only works if page data can be compressed to a size that is ...For example, for page compression to work on Windows, you could build the file system with a cluster size of 512 Bytes (which has a compression unit of 8KB) and initialize InnoDB with an innodb_page_size value of 16K or ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-tde-limitations.html
Transparent data encryption in NDB Cluster is subject to the following restrictions and limitations: The file system password must be supplied to each individual data node. File system password rotation requires an initial rolling restart of the ...
https://dev.mysql.com/doc/refman/8.0/en/clone-plugin-directories.html
When data is cloned, the following directories and files are created for internal use. *.#clone files: Temporary data files created on the recipient while data is removed from the recipient data directory and new data is cloned during a remote ...
https://dev.mysql.com/doc/refman/8.0/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/8.0/en/my-print-defaults.html
my_print_defaults displays the options that are present in option groups of option files. To see what options are present in those groups in the standard option files, invoke my_print_defaults like this: $> my_print_defaults mysqlcheck client ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-dedicated-server.html
When the server is started with --innodb-dedicated-server, InnoDB automatically calculates values for and sets the following system variables: innodb_buffer_pool_size innodb_redo_log_capacity (MySQL 8.0.30 and later) innodb_log_file_size (prior to ...You should expect innodb_log_file_size and innodb_log_files_in_group to be removed in a future version of ...
https://dev.mysql.com/doc/refman/8.0/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 ...