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https://dev.mysql.com/doc/refman/8.4/en/ipv6-support.html
Support for IPv6 in MySQL includes these capabilities: MySQL Server can accept TCP/IP connections from clients connecting over IPv6. For example, this command connects over IPv6 to the MySQL server on the local host: $> mysql -h ::1 To use this ...
https://dev.mysql.com/doc/refman/8.4/en/keyring-file-component.html
The component_keyring_file keyring component stores keyring data in a file local to the server host. To use component_keyring_file for keystore management, you must: Write a manifest that tells the server to load component_keyring_file, as ...
https://dev.mysql.com/doc/refman/8.4/en/multiple-key-caches.html
Where there are multiple key caches, the server must know which cache to use when processing queries for a given MyISAM table. By default, table indexes are assigned to the main (default) key cache created at the server startup. For a busy server, ... Note As of MySQL 8.4, the compound-part structured-variable syntax discussed here for referring to multiple MyISAM key caches is ...
https://dev.mysql.com/doc/refman/8.4/en/myisam-table-close.html
Multiple mysqld servers are using the table and one server performed a REPAIR TABLE or CHECK TABLE on the table while it was in use by another server. In this setup, it is safe to use CHECK TABLE, although you might get the warning from other ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-configuration.html
A MySQL server that is part of an NDB Cluster differs in one chief respect from a normal (nonclustered) MySQL server, in that it employs the NDB storage engine. To avoid unnecessary allocation of resources, the server is configured by default with ...This engine is also referred to sometimes as NDBCLUSTER, although NDB is ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-replication-backups.html
We assume that the replication servers have already been configured as covered previously (see Section 25.7.5, “Preparing the NDB Cluster for Replication”, and the sections immediately following). This method requires that the cluster backup ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-replication-issues.html
Examples of incidents are server failures, database resynchronization, some software updates, and some hardware changes.) When the replica encounters a gap in the replication log, it stops with an error message. If you are replicating from a ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-replication.html
Normal (non-clustered) replication involves a source server and a replica server, the source being so named because operations and data to be replicated originate with it, and the replica being the recipient of these. This process is accomplished by ... NDB Cluster supports asynchronous replication, more usually referred to simply as ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-what-is-new.html
NDB 8.4.3 adds the ndb_log_cache_size server system variable, which makes it possible to set the size of the transaction cache used for writing the binary log. Using ndb_sign_keys, a node certificate can be bound to a particular hostname, made to ...
https://dev.mysql.com/doc/refman/8.4/en/mysqldump-upgrade-testing.html
Then you can dump the database and database object definitions from the production server and load them into the new server to verify that they are handled properly. (This is also useful for testing downgrades.) On the production server: $> ... When ...