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https://dev.mysql.com/doc/refman/9.7/en/group-replication-replication-group-members.html
The performance_schema.replication_group_members table is used for monitoring the status of the different server instances that are members of the group. The information in the table is updated whenever there is a view change, for example when the ...
https://dev.mysql.com/doc/refman/9.7/en/group-replication-security.html
This section explains how to secure a group, securing the connections between members of a group, or by establishing a security perimeter using an IP address allowlist.
https://dev.mysql.com/doc/refman/9.7/en/group-replication-server-states.html
The state of a Group Replication group member shows its current role in the group. The Performance Schema table replication_group_members shows the state for each member in a group. If the group is fully functional and all members are communicating ...
https://dev.mysql.com/doc/refman/9.7/en/history.html
We started out with the intention of using the mSQL database system to connect to our tables using our own fast low-level (ISAM) routines. However, after some testing, we came to the conclusion that mSQL was not fast enough or flexible enough for ...
https://dev.mysql.com/doc/refman/9.7/en/index-statistics.html
Storage engines collect statistics about tables for use by the optimizer. Table statistics are based on value groups, where a value group is a set of rows with the same key prefix value. For optimizer purposes, an important statistic is the average ...
https://dev.mysql.com/doc/refman/9.7/en/information-schema-introduction.html
INFORMATION_SCHEMA provides access to database metadata, information about the MySQL server such as the name of a database or table, the data type of a column, or access privileges. Other terms that are sometimes used for this information are data ...
https://dev.mysql.com/doc/refman/9.7/en/information-schema-table-reference.html
The following table summarizes all available INFORMATION_SCHEMA tables. For greater detail, see the individual table descriptions. Table 28.1 INFORMATION_SCHEMA Tables Table Name Description Deprecated ADMINISTRABLE_ROLE_AUTHORIZATIONS Grantable ...
https://dev.mysql.com/doc/refman/9.7/en/information-schema-tp-thread-state-table.html
Note The INFORMATION_SCHEMA thread pool tables are deprecated, and subject to removal in a future version of MySQL. You should use the versions available as Performance Schema tables instead. Applications should transition away from the old tables ...
https://dev.mysql.com/doc/refman/9.7/en/innodb-data-encryption.html
InnoDB supports data-at-rest encryption for file-per-table tablespaces, general tablespaces, the mysql system tablespace, redo logs, and undo logs. You can set an encryption default for schemas and general tablespaces; this permits DBAs to control ...
https://dev.mysql.com/doc/refman/9.7/en/innodb-error-handling.html
InnoDB sometimes rolls back only the statement that failed, other times it rolls back the entire transaction. If you run out of file space in a tablespace, a MySQL Table is full error occurs and InnoDB rolls back the SQL statement. A transaction ...