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https://dev.mysql.com/doc/refman/8.4/en/query-log.html
The server writes information to this log when clients connect or disconnect, and it logs each SQL statement received from clients. When using statement-based binary logging on a replication source server, statements received by its replicas are ...
https://dev.mysql.com/doc/refman/8.4/en/replica-logs-status.html
A replica server creates two replication metadata repositories, the connection metadata repository and the applier metadata repository. The replica's connection metadata repository contains information that the replication I/O (receiver) thread ...
https://dev.mysql.com/doc/refman/8.4/en/replication-semisync-installation.html
To use semisynchronous replication, the following requirements must be satisfied: The capability of installing plugins requires a MySQL server that supports dynamic loading. If necessary, configure the plugin directory location by setting the value ... Semisynchronous replication is implemented using plugins, which must be installed on the source and on the replicas to make semisynchronous replication available on the ...
https://dev.mysql.com/doc/refman/8.4/en/upgrade-best-practices.html
For a current list of supported platforms, see: https://www.mysql.com/support/supportedplatforms/database.html Understand MySQL Server Changes Each major version comes with new features, changes in behavior, deprecations, and removals. The ... MySQL ...
https://dev.mysql.com/doc/relnotes/mysql/8.4/en/news-8-4-1.html
It was removed due to a critical issue that could stop the server from restarting following the creation of a very large number of tables (8001 or more). (Bug #35317691) MySQL LDAP SASL authentication, when used with the GSSAPI method to access an ...Now pruning continues in such cases, but with a warning printed in the error log stating that it was not possible to delete the missing audit log ...
https://dev.mysql.com/doc/mysql-enterprise-backup/8.4/en/backup-capacity-options.html
This is to limit the CPU and I/O overhead on the database server. It can be used to back up a server with less disruption to normal database processing. A busy server could be writing a page at the same moment that mysqlbackup is reading it. A busy ... These options limit the resources used by the backup process, in order to minimize backup overhead for busy or huge databases, or specify behaviors of the process when encountering resource ...
https://dev.mysql.com/doc/c-api/8.4/en/c-api-basic-function-reference.html
The following table summarizes the functions available in the C API basic interface. For greater detail, see the descriptions in Section 5.4, “C API Basic Function Descriptions”.
https://dev.mysql.com/doc/extending-mysql/8.4/en/writing-authentication-plugins.html
An authentication plugin can be written for the server side or the client side. Server-side plugins use the same plugin API that is used for the other server plugin types such as full-text parser or audit plugins (although with a different ... MySQL ...
https://dev.mysql.com/doc/extending-mysql/8.4/en/writing-keyring-plugins.html
MySQL Server supports a keyring service that enables internal server components and plugins to securely store sensitive information for later retrieval. This section describes how to write a server-side keyring plugin that can be used by service ...
https://dev.mysql.com/doc/extending-mysql/8.4/en/writing-plugins-overview.html
You must compile plugins with the entire server source code present, not just the libraries and header files. For a plugin compiled against MySQL 8.4.X, there is no guarantee it will work with a MySQL 8.4.Y server without recompiling for MySQL 8.4.Y. For server plugins, this means that mysqld must be linked ... These conditions apply to plugin writing: MySQL header files used by ...