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https://dev.mysql.com/doc/mysql-em-plugin/en/myoem-config-metric-connection-category.html
Connect Timeout The number of seconds that the MySQL server waits for a connect packet before responding with 'Bad handshake'. Table 7.7 Connection Configuration Metrics NameDescriptionBack Log The number of outstanding connection requests MySQL can ... Lists the Connection configuration metrics and provides a brief description of ...
https://dev.mysql.com/doc/x-devapi-userguide/en/working-with-data-sets.html
The data item's life time is decoupled from the data set. MySQL Shell JavaScript Code var myColl = db.getCollection('my_collection'); var res = myColl.find('name like :name').bind('name','L%'). Operations that fetch data items return a cursor that ...
https://dev.mysql.com/doc/mysql-monitor/8.0/en/dashboard-overview-graphs.html
To set a time interval for the graph data, select one of the interval values. Each group, cluster, and asset displays a different set of default sparkline graphs. To change a graph, do the following: Select the Settings button, the gear on the ...
https://dev.mysql.com/doc/mysql-monitor/8.0/en/mem-first-login-dashboard.html
Create user with agent role: the Agent user credentials are used by every monitoring agent to connect to MySQL Enterprise Service Manager. The agent must connect to MySQL Enterprise Service Manager to transmit the monitored data. The user defined ...
https://dev.mysql.com/doc/heatwave/en/mys-hw-advisor-auto-indexing.html
As of MySQL 9.0.0, MySQL HeatWave Autopilot Advisor includes Autopilot Indexing that can make secondary index suggestions to improve workload performance. An estimate of the index creation time and the estimated performance gain of the top 5 queries ... Autopilot Indexing obtains workloads from the statement digest history stored in the Performance Schema, evaluates them, and identifies potential indexes that can help improve workload ...
https://dev.mysql.com/doc/refman/8.4/en/binary-log-mixed.html
(Bug #28086) When one of the tables involved is a log table in the mysql database. The following system variables, when used with session scope (only), do not cause the logging format to switch: auto_increment_increment auto_increment_offset ...
https://dev.mysql.com/doc/refman/8.4/en/charset-unicode-utf8mb3.html
utf8mb3 remains supported for the lifetimes of the MySQL 8.0.x and MySQL 8.4.x LTS release series. Expect utf8mb3 to be removed in a future major release of MySQL. Since changing character sets can be a complex and time-consuming task, you should ...
https://dev.mysql.com/doc/refman/8.4/en/engine-condition-pushdown-optimization.html
For example, in a my.cnf file, use these lines: [mysqld] optimizer_switch=engine_condition_pushdown=off At runtime, disable condition pushdown like this: SET optimizer_switch='engine_condition_pushdown=off'; Limitations. Filtering can be also ...
https://dev.mysql.com/doc/refman/8.4/en/enum.html
An ENUM is a string object with a value chosen from a list of permitted values that are enumerated explicitly in the column specification at table creation time. This means that you can use the following SELECT statement to find rows into which ...
https://dev.mysql.com/doc/refman/8.4/en/group-replication-member-actions.html
Group Replication increments the version number for its member actions configuration each time a member action is enabled or disabled. If a group’s lowest MySQL Server version supports member actions, joining members receive the group’s member ... Group Replication has the ability to set actions for the members of a group to take in specified ...