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https://dev.mysql.com/doc/refman/9.7/en/monitoring-performance-schema.html
You can query the tables in the performance_schema database to see real-time information about the performance characteristics of your server and the applications it is running.
https://dev.mysql.com/doc/refman/9.7/en/multiple-server-clients.html
Start the client with --protocol=TCP to connect using TCP/IP, --protocol=SOCKET to connect using a Unix socket file, --protocol=PIPE to connect using a named pipe, or --protocol=MEMORY to connect using shared memory. For TCP/IP connections, you may ...
https://dev.mysql.com/doc/refman/9.7/en/myisam-check.html
To check a MyISAM table, use the following commands: myisamchk tbl_name This finds 99.99% of all errors. What it cannot find is corruption that involves only the data file (which is very unusual). If you want to check a table, you should normally ...
https://dev.mysql.com/doc/refman/9.7/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/9.7/en/myisam-repair.html
The discussion in this section describes how to use myisamchk on MyISAM tables (extensions .MYI and .MYD). You can also use the CHECK TABLE and REPAIR TABLE statements to check and repair MyISAM tables. See Section 15.7.3.2, “CHECK TABLE ...
https://dev.mysql.com/doc/refman/9.7/en/myisam-start.html
The following options to mysqld can be used to change the behavior of MyISAM tables. bulk_insert_buffer_size The size of the tree cache used in bulk insert optimization. Note This is a limit per thread! delay_key_write=ALL Don't flush key buffers ...
https://dev.mysql.com/doc/refman/9.7/en/myisam-table-maintenance.html
This section discusses how to use myisamchk to check or repair MyISAM tables (tables that have .MYD and .MYI files for storing data and indexes). For general myisamchk background, see Section 6.6.4, “myisamchk — MyISAM Table-Maintenance ...
https://dev.mysql.com/doc/refman/9.7/en/myisamchk-other-options.html
myisamchk supports the following options for actions other than table checks and repairs: --analyze, -a Command-Line Format --analyze Analyze the distribution of key values. This improves join performance by enabling the join optimizer to better ...
https://dev.mysql.com/doc/refman/9.7/en/myisamchk-repair-options.html
--correct-checksum Command-Line Format --correct-checksum Correct the checksum information for the table. --data-file-length=len, -D len Command-Line Format --data-file-length=len Type Numeric The maximum length of the data file (when re-creating ...
https://dev.mysql.com/doc/refman/9.7/en/myisamchk.html
The myisamchk utility gets information about your database tables or checks, repairs, or optimizes them. myisamchk works with MyISAM tables (tables that have .MYD and .MYI files for storing data and indexes). You can also use the CHECK TABLE and ...