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https://dev.mysql.com/doc/refman/8.4/en/innodb-information-schema-files-table.html
The Information Schema FILES table provides metadata about all InnoDB tablespace types including file-per-table tablespaces, general tablespaces, the system tablespace, temporary table tablespaces, and undo tablespaces (if present). For more ...
https://dev.mysql.com/doc/refman/8.4/en/innodb-information-schema-metrics-table.html
The INNODB_METRICS table provides information about InnoDB performance and resource-related counters. SET GLOBAL innodb_monitor_disable = [counter-name|module_name|pattern|all]; innodb_monitor_reset: Resets counter values to zero. SET GLOBAL ...
https://dev.mysql.com/doc/refman/8.4/en/innodb-information-schema-system-tables.html
You can extract metadata about schema objects managed by InnoDB using InnoDB INFORMATION_SCHEMA tables. Traditionally, you would get this type of information using the techniques from Section 17.17, “InnoDB Monitors”, setting up InnoDB monitors ...
https://dev.mysql.com/doc/refman/8.4/en/innodb-online-ddl-limitations.html
The following limitations apply to online DDL operations: The table is copied when creating an index on a TEMPORARY TABLE. The ALTER TABLE clause LOCK=NONE is not permitted if there are ON...CASCADE or ON...SET NULL constraints on the table. Before ...
https://dev.mysql.com/doc/refman/8.4/en/monitor-alter-table-performance-schema.html
You can monitor ALTER TABLE progress for InnoDB tables using Performance Schema. There are seven stage events that represent different phases of ALTER TABLE. Each stage event reports a running total of WORK_COMPLETED and WORK_ESTIMATED for the ...
https://dev.mysql.com/doc/refman/8.4/en/myisam-key-cache.html
To minimize disk I/O, the MyISAM storage engine exploits a strategy that is used by many database management systems. It employs a cache mechanism to keep the most frequently accessed table blocks in memory: For index blocks, a special structure ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-batch-commands.html
The mysql client typically is used interactively, like this: mysql db_name However, it is also possible to put your SQL statements in a file and then tell mysql to read its input from that file. To do so, create a text file text_file that contains ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-data-node-memory-management.html
All memory allocation for a data node is performed when the node is started. This ensures that the data node can run in a stable manner without using swap memory, so that NDB can be used for latency-sensitive (realtime) applications. The reserved ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-configurator-cli.html
MySQL Configurator supports GUI (default) and CLI (by passing in --console) modes using the mysql_configurator.exe executable. Note MySQL Configurator CLI functionality was added in MySQL Configurator 9.2.0. Executing MySQL Configurator requires a ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-enterprise-telemetry.html
The MySQL telemetry component is based on the OpenTelemetry (OTel) project, an open-source, vendor-neutral observability framework providing a common observability standard. It enables users to instrument their applications in order to export ...