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https://dev.mysql.com/doc/refman/5.7/en/performance-schema-and-plugins.html
Time spent executing the code while the plugin was loaded was still spent even if the plugin is unloaded later. Removing a plugin with UNINSTALL PLUGIN does not affect information already collected for code in that plugin. The associated event ...
https://dev.mysql.com/doc/refman/5.7/en/channels-with-prev-replication.html
In this case, error 1964 Multiple channels exist on the slave. When a replica has multiple channels and a FOR CHANNEL channel option is not specified, a valid statement generally acts on all available channels, with some specific exceptions. For ...
https://dev.mysql.com/doc/refman/5.7/en/firewall-elements.html
MySQL Enterprise Firewall is based on a plugin library that includes these elements: A server-side plugin named MYSQL_FIREWALL examines SQL statements before they execute and, based on the registered firewall profiles, renders a decision whether to ...Server-side plugins named MYSQL_FIREWALL_USERS and MYSQL_FIREWALL_WHITELIST implement INFORMATION_SCHEMA tables that provide views into the registered ...
https://dev.mysql.com/doc/refman/5.7/en/ipv6-system-support.html
As a simple test to determine whether that is true, try this command: $> ping6 ::1 16 bytes from ::1, icmp_seq=0 hlim=64 time=0.171 ms 16 bytes from ::1, icmp_seq=1 hlim=64 time=0.077 ms ... Before MySQL Server can accept IPv6 connections, the ...
https://dev.mysql.com/doc/refman/5.7/en/innodb-transaction-isolation-levels.html
Isolation is the I in the acronym ACID; the isolation level is the setting that fine-tunes the balance between performance and reliability, consistency, and reproducibility of results when multiple transactions are making changes and performing ...
https://dev.mysql.com/doc/refman/5.7/en/version-tokens-elements.html
Version Tokens is based on a plugin library that implements these elements: A server-side plugin named version_tokens holds the list of version tokens associated with the server and subscribes to notifications for statement execution events. The ...
https://dev.mysql.com/doc/refman/5.7/en/alter-user.html
By default, an error occurs if you try to modify a user that does not exist. If the IF EXISTS clause is given, the statement produces a warning for each named user that does not exist, rather than an error. The account can be used for a maximum of ... ALTER USER [IF EXISTS] user [auth_option] [, user [auth_option]] ...
https://dev.mysql.com/doc/refman/5.7/en/group-replication-data-definition-statements.html
In a Group Replication topology, care needs to be taken when executing data definition statements also commonly known as data definition language (DDL). Given that MySQL does not support atomic or transactional DDL, one cannot optimistically ...
https://dev.mysql.com/doc/refman/5.7/en/show-grants.html
SHOW GRANTS [FOR user] This statement displays the privileges that are assigned to a MySQL user account, in the form of GRANT statements that must be executed to duplicate the privilege assignments. Note To display nonprivilege information for ...
https://dev.mysql.com/doc/refman/5.7/en/group-replication-usage-advice-and-limitations-of-distributed-recovery.html
This means that if the data to transfer is too big at phase 1, the server may take a very long time to recover. That way, one minimizes the time spent on the recovery step. It is based on classic asynchronous replication and as such it may be slow ...