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https://dev.mysql.com/doc/refman/8.0/en/group-replication-probes-and-statistics.html
The monitoring mechanism works by having each member deploying a set of probes to collect information about its work queues and throughput. Such probes are scattered throughout the plugin stack and allow one to establish metrics, such as: the ...It ...
https://dev.mysql.com/doc/refman/8.0/en/archive-storage-engine.html
The ARCHIVE engine supports INSERT, REPLACE, and SELECT, but not DELETE or UPDATE. It does support ORDER BY operations, BLOB columns, and spatial data types (see Section 13.4.1, “Spatial Data Types”). The ARCHIVE engine ignores BLOB columns if ... The ARCHIVE storage engine produces special-purpose tables that store large amounts of unindexed data in a very small ...
https://dev.mysql.com/doc/refman/8.0/en/group-replication-change-primary.html
If you do not set the timeout, there is no upper limit to the wait time, and new transactions can start during that time. Explicitly defined transactions (with a START TRANSACTION or BEGIN statement) are subject to the timeout, disconnection, and ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-deadlocks.html
A deadlock can occur when transactions lock rows in multiple tables (through statements such as UPDATE or SELECT ... A deadlock can also occur when such statements lock ranges of index records and gaps, with each transaction acquiring some locks but ... A deadlock is a situation in which multiple transactions are unable to proceed because each transaction holds a lock that is needed by another ...
https://dev.mysql.com/doc/refman/8.0/en/ipv6-brokers.html
For example: userid=gogouser passwd=gogopass Start gogoc: $> /etc/init.d/gogoc start To start gogoc each time your system boots, execute this command: $> rc-update add gogoc default Use ping6 to try to ping a host: $> ping6 ipv6.google.com To see ...
https://dev.mysql.com/doc/refman/8.0/en/setting-environment-variables.html
To have the settings take effect each time you log in, use the interface provided by your system or place the appropriate command or commands in a startup file that your command interpreter reads each time it starts. Environment variables can be ...
https://dev.mysql.com/doc/refman/8.0/en/multiple-tables.html
Given these considerations, the CREATE TABLE statement for the event table might look like this: mysql> CREATE TABLE event (name VARCHAR(20), date DATE, type VARCHAR(15), remark VARCHAR(255)); As with the pet table, it is easiest to load the initial ... The pet table keeps track of which pets you ...
https://dev.mysql.com/doc/refman/8.0/en/help.html
The HELP statement searches the help tables for the given search string and displays the result of the search. The search string can contain the wildcard characters % and _. If X is less than or equal to 0.0E0, the function returns NULL and a ...
https://dev.mysql.com/doc/refman/8.0/en/changing-mysql-user.html
On Unix (or Linux for installations performed using tar.gz packages) , the MySQL server mysqld can be started and run by any user. If it does not, you must also follow those links and change the directories and files they point to. Another ... On ...
https://dev.mysql.com/doc/refman/8.0/en/clone-plugin-installation.html
This section describes how to install and configure the clone plugin. For remote cloning operations, the clone plugin must be installed on the donor and recipient MySQL server instances. For general information about installing or uninstalling ...