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https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-config-example.html
You may also specify these parameters on the command line when invoking the executables. You may also use a separate [mysql_cluster] section in the cluster my.cnf file for settings to be read and used by all executables: # cluster-specific settings ... To support NDB Cluster, you should update my.cnf as shown in the following ...
https://dev.mysql.com/doc/refman/8.0/en/security-guidelines.html
A passphrase containing multiple words is easy to create, remember, and reproduce, and is much more secure than a typical user-selected password consisting of a single modified word or a predictable sequence of characters. To create a secure ...When ... Anyone using MySQL on a computer connected to the Internet should read this section to avoid the most common security ...
https://dev.mysql.com/doc/refman/8.0/en/stored-routines-metadata.html
To obtain metadata about stored routines: Query the ROUTINES table of the INFORMATION_SCHEMA database. Use the SHOW CREATE PROCEDURE and SHOW CREATE FUNCTION statements to see routine definitions. Use the SHOW PROCEDURE STATUS and SHOW FUNCTION ...
https://dev.mysql.com/doc/refman/8.0/en/upgrade-before-you-begin.html
The backup should include the mysql system database, which contains the MySQL data dictionary tables and system tables. If your MySQL installation contains a large amount of data that might take a long time to convert after an in-place upgrade, it ...Important Downgrade from MySQL 8.0 to MySQL 5.7, or from a MySQL 8.0 release to a previous MySQL 8.0 release, is not ...
https://dev.mysql.com/doc/refman/8.0/en/upgrade-troubleshooting.html
A schema mismatch in a MySQL 5.7 instance between the .frm file of a table and the InnoDB data dictionary can cause an upgrade to MySQL 8.0 to fail. To address this issue, dump and restore affected tables before attempting the upgrade again. If you ...If problems occur, such as that the new mysqld server does not start, verify that you do not have an old my.cnf file from your previous ...
https://dev.mysql.com/doc/refman/8.0/en/file-permissions.html
For example, mysqld might issue the following error message when you create a table: ERROR: Can't find file: 'path/with/file_name' (Errcode: 13) The default UMASK and UMASK_DIR values are 0640 and 0750, respectively. If this is unsuitable, create ...
https://dev.mysql.com/doc/refman/8.0/en/group-replication-frequently-asked-questions.html
This limit has been identified from testing and benchmarking as a safe boundary where the group performs reliably on a stable local area network. What is the group_replication_bootstrap_group option used for? The bootstrap flag instructs a member to ...What is the maximum number of MySQL servers in a group? A group can consist of maximum 9 ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-config-editor.html
The login path file must be readable and writable to the current user, and inaccessible to other users. Invoke mysql_config_editor like this: mysql_config_editor [program_options] command [command_options] If the login path file does not exist, ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-install-linux-binary.html
This section covers the steps necessary to install the correct executables for each type of Cluster node from precompiled binaries supplied by Oracle. Some OS distributions create these as part of the operating system installation process. Change ...For setting up a cluster using precompiled binaries, the first step in the installation process for each cluster host is to download the binary archive from the NDB Cluster downloads ...
https://dev.mysql.com/doc/refman/8.0/en/reloading-sql-format-dumps.html
To reload a dump file written by mysqldump that consists of SQL statements, use it as input to the mysql client.