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https://dev.mysql.com/doc/refman/8.0/en/performance-schema-system-variable-tables.html
persisted_variables: Provides a SQL interface to the mysqld-auto.cnf file that stores persisted global system variable settings. The MySQL server maintains many system variables that indicate how it is configured (see Section 7.1.8, “Server ...An ...
https://dev.mysql.com/doc/refman/8.0/en/program-variables.html
In an option file, variable settings are given without the leading dashes: [mysql] max_allowed_packet=16777216 Or: [mysql] max_allowed_packet=16M If you like, underscores in an option name can be specified as dashes. Many MySQL programs have ...See ...
https://dev.mysql.com/doc/refman/8.0/en/replication-multi-source-adding-binlog-master.html
These steps assume that binary logging is enabled on the source (which is the default), the replica is using TABLE based replication applier metadata repositories (which is the default in MySQL 8.0), and that you have enabled a replication user and ...Use the CHANGE REPLICATION SOURCE TO statement (from MySQL 8.0.23) or CHANGE MASTER TO statement (before MySQL 8.0.23) to configure a replication channel for each source on the replica (see Section 19.2.2, “Replication ...
https://dev.mysql.com/doc/refman/8.0/en/replication-privilege-checks-gr.html
This action causes the relay log files for the channel to be purged, which might cause the loss of transactions that have been received and queued in the relay log, but not yet applied. From MySQL 8.0.19, as well as securing asynchronous and ...In ...
https://dev.mysql.com/doc/refman/8.0/en/replication-threads.html
The replication receiver thread reads the updates that the source's Binlog Dump thread sends (see previous item) and copies them to local files that comprise the replica's relay log. MySQL replication capabilities are implemented using the ...A ...
https://dev.mysql.com/doc/refman/8.0/en/security-options.html
The following table shows mysqld options and system variables that affect security. For descriptions of each of these, see Section 7.1.7, “Server Command Options”, and Section 7.1.8, “Server System Variables”.
https://dev.mysql.com/doc/refman/8.0/en/selinux-checking.html
SELinux is enabled by default on some Linux distributions including Oracle Linux, RHEL, CentOS, and Fedora.
https://dev.mysql.com/doc/refman/8.0/en/selinux-mode.html
To permanently change the SELinux mode, edit the /etc/selinux/config file and restart the system. Permissive mode allows operations that are not permitted in enforcing mode and logs those operations to the SELinux audit log. To view the current ...
https://dev.mysql.com/doc/refman/8.0/en/source-installation-layout.html
By default, when you install MySQL after compiling it from source, the installation step installs files under /usr/local/mysql. The component locations under the installation directory are the same as for binary distributions. To configure ...See ...
https://dev.mysql.com/doc/refman/8.0/en/source-installation.html
Building MySQL from the source code enables you to customize build parameters, compiler optimizations, and installation location. For a list of systems on which MySQL is known to run, see ...Instructions for installing binary distributions are ...