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https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-ndbinfo-cpustat-20sec.html
The cpustat_20sec table provides raw, per-thread CPU data obtained each 20 seconds, for each thread running in the NDB kernel. Like cpustat_50ms and cpustat_1sec, this table shows 20 measurement sets per thread, each referencing a period of the ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-ndbinfo-cpustat-50ms.html
The cpustat_50ms table provides raw, per-thread CPU data obtained each 50 milliseconds for each thread running in the NDB kernel. Like cpustat_1sec and cpustat_20sec, this table shows 20 measurement sets per thread, each referencing a period of the ...
https://dev.mysql.com/doc/refman/5.7/en/sys-ps-setup-reset-to-default.html
row *************************** status: Resetting: setup_actors DELETE FROM performance_schema.setup_actors WHERE NOT (HOST = '%' AND USER = '%' AND ROLE = '%') *************************** 1. Parameters in_verbose BOOLEAN: Whether to display ...
https://dev.mysql.com/doc/refman/5.7/en/updating-direct-rpms.html
It is preferable to use the MySQL Yum repository or MySQL SLES Repository to upgrade MySQL on RPM-based platforms. For an upgrade installation using RPM packages, the MySQL server is automatically restarted at the end of the installation if it was ...Note Because of the dependency relationships among the RPM packages, all of the installed packages must be of the same ...
https://dev.mysql.com/doc/refman/5.7/en/performance-schema-stage-tables.html
Configuring Stage Event Collection Stage Event Progress Information Configuring Stage Event Collection To control whether to collect stage events, set the state of the relevant instruments and consumers: The setup_instruments table contains ... The ...Within the event hierarchy, wait events nest within stage events, which nest within statement events, which nest within transaction ...
https://dev.mysql.com/doc/refman/5.7/en/precision-math-expressions.html
To turn on all restrictions, you can simply use TRADITIONAL mode, which includes both strict mode values and ERROR_FOR_DIVISION_BY_ZERO: SET sql_mode='TRADITIONAL'; If a number is inserted into an exact type column (DECIMAL or integer), it is ...For ... With precision math, exact-value numbers are used as given whenever ...
https://dev.mysql.com/doc/refman/5.7/en/security-plugins.html
A password-validation plugin for implementing password strength policies and assessing the strength of potential passwords. MySQL includes several plugins that implement security features: Plugins for authenticating attempts by clients to connect ...(MySQL Enterprise Edition only) MySQL Enterprise Audit, implemented using a server plugin, uses the open MySQL Audit API to enable standard, policy-based monitoring and logging of connection and query activity executed on specific MySQL ...
https://dev.mysql.com/doc/refman/5.7/en/backup-policy.html
For example, for the MyISAM tables in the mysql database, there must be no administrative changes to MySQL accounts during the backup. The MySQL binary logs are important for recovery because they form the set of incremental backups. For example, ...
https://dev.mysql.com/doc/refman/5.7/en/concurrent-inserts.html
If the variable is set to ALWAYS (or 2), concurrent inserts at the end of the table are permitted even for tables that have deleted rows. If there are multiple INSERT statements, they are queued and performed in sequence, concurrently with the ...
https://dev.mysql.com/doc/refman/5.7/en/information-schema-column-privileges-table.html
The COLUMN_PRIVILEGES table has these columns: GRANTEE The name of the account to which the privilege is granted, in 'user_name'@'host_name' format. IS_GRANTABLE YES if the user has the GRANT OPTION privilege, NO otherwise. TABLE_SCHEMA The name of ...TABLE_CATALOG The name of the catalog to which the table containing the column ...