Mysql memory allocation is the top priority of optimization, so you must understand how the memory is allocated mysqlshowglobalvariableslike #39; % buffer % #39 ;; + ------------------------- + ------------ + | Variable_name... mysql memory
mysql> show global status; Can list MySQL server running various status values, my personal preferred usage is show status like ' query value% '; One, slow query mysql> show variables like '%slow% '; +------------------+-------+ | variable_name
MySQL has a lot of basic commands, and the show command is also one of them. In many users, the use of the show command is also prone to confusion. This article summarizes the many usage of the show command.1. Show tables or show tables from
Original link: MySQL Memory Allocation-by Rick JamesOriginal date: Created 2010; Refreshed Oct,, Jan, 2014Translators: AnchorTranslation Date: May 28, 2014MySQL Memory Allocation--Quick setup SchemeIf you use only the MyISAM storage engine,
MySQL memory table usage
Memory tables use Hash hash indexes to store data in the memory. Therefore, it is extremely fast and suitable for caching Small and Medium databases. However, the usage is limited. The following are some of the feelings
Original link: MySQL Memory Allocation-by Rick JamesOriginal date: Created 2010; Refreshed Oct,, Jan, 2014Translators: AnchorTranslation Date: May 28, 2014MySQL memory allocation-high-speed setup schemeAssuming that only the MyISAM storage engine is
This article mainly introduces the use of the show Profile command in MySQL to analyze the performance of the collation, show profiles is a common command of database performance optimization, the need for friends can refer to the followingShow
This article mainly introduces the use of basic commands in the MySQL Cluster configuration process. The example of two node connections is provided in the real-time recording. For more information, see the following.
1. check whether you should use
Summary of problems with high usage of mysql CPU bitsCN.com through previous operations on mysql, I first excluded the mysql configuration problem and checked whether msyql is running normally, view the *. errfile (change the extension name to .txt)
1. Show CHARACTER set shows all available character sets' UTF8 ' ; +---------+---------------+-------------------+--------+| Charset | Description | Default Collation | MaxLen |+---------+---------------+-------------------+--------+| UTF8 | utf-83 |
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