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https://dev.mysql.com/doc/refman/8.0/en/resource-groups.html
The server determines at startup how many virtual CPUs are available, and database administrators with appropriate privileges can associate these CPUs with resource groups and assign threads to groups. Resource group definitions are stored in the ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-replication-applier-status-by-worker-table.html
For a single-threaded replica, data is shown for the replica's single applier thread. All error codes and messages displayed in the columns relating to errors correspond to error values listed in Server Error Message Reference. LAST_ERROR_NUMBER, ...
https://dev.mysql.com/doc/refman/8.0/en/myisam-ftdump.html
If you do not invoke myisam_ftdump in the directory where the table files are located, the table or index file name must be preceded by the path name to the table's database directory. It reads the MyISAM index file directly, so it must be run on ...
https://dev.mysql.com/doc/refman/8.0/en/fulltext-stopwords.html
The server looks for the file in the data directory unless an absolute path name is given to specify a different directory. False hits or misses might occur for stopword lookups if the stopword file or columns used for full-text indexing or searches ... The stopword list is loaded and searched for full-text queries using the server character set and collation (the values of the character_set_server and collation_server system ...
https://dev.mysql.com/doc/refman/8.0/en/replication-functions-synchronization.html
The function returns NULL if the replication SQL thread is not started, the replica's source information is not initialized, the arguments are incorrect, or an error occurs. If the binary log file position has been marked as invalid, the function ...
https://dev.mysql.com/doc/refman/8.0/en/postinstallation.html
For other platforms and installation types, you must initialize the data directory manually. This section discusses tasks that you should perform after installing MySQL: If necessary, initialize the data directory and create the MySQL grant tables.
https://dev.mysql.com/doc/refman/8.0/en/mysql-tips.html
Setting max_join_size to 1,000,000 causes multiple-table SELECT statements to produce an error if the server estimates it must examine more than 1,000,000 row combinations. To change the set of key sequences permitted by a given input library, ...
https://dev.mysql.com/doc/refman/8.0/en/sys-schema-object-index.html
The following tables list sys schema objects and provide a short description of each one.
https://dev.mysql.com/doc/refman/8.0/en/backup-and-recovery.html
Additional Resources Resources related to backup or to maintaining data availability include the following: Customers of MySQL Enterprise Edition can use the MySQL Enterprise Backup product for backups. This has several benefits, such as enabling ...
https://dev.mysql.com/doc/refman/8.0/en/locking-service.html
A namespace or lock name specified as NULL, the empty string, or a string longer than 64 characters results in an ER_LOCKING_SERVICE_WRONG_NAME error. If the timeout is reached without successful lock acquisition, an ER_LOCKING_SERVICE_TIMEOUT error ... MySQL distributions provide a locking interface that is accessible at two levels: At the SQL level, as a set of loadable functions that each map onto calls to the service ...