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https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-online-add-node-remarks.html
However, all data and indexes added to tables created after a new node group has been added are distributed automatically among all cluster data nodes, including those added as part of the new node group. Normal DML operations using NDB Cluster data ...The ability to add new nodes online includes a means to reorganize NDBCLUSTER table data and indexes so that they are distributed across all data nodes, including the new ones, by means of the ALTER TABLE ...
https://dev.mysql.com/doc/refman/8.0/en/upgrade-binary-package.html
Important If you have tables that contain generated columns, use the mysqldump utility provided with MySQL 5.7.9 or higher to create your dump files. Note Loading a dump file that contains a MySQL 5.7 mysql schema re-creates two tables that are no ...For example: mysqld_safe --user=mysql --datadir=/path/to/existing-datadir & If there are encrypted InnoDB tablespaces, use the --early-plugin-load option to load the keyring ...
https://dev.mysql.com/doc/refman/8.0/en/fulltext-fine-tuning.html
To rebuild FULLTEXT indexes for an InnoDB table, use ALTER TABLE with the DROP INDEX and ADD INDEX options to drop and re-create each index. Some variable changes require that you rebuild the FULLTEXT indexes in your tables. Note Minimum and maximum ...You can exert more control over full-text searching behavior if you have a MySQL source distribution because some changes require source code ...
https://dev.mysql.com/doc/refman/8.0/en/problems-connecting.html
Under Linux or Unix, check your IP tables (or similar) configuration to ensure that the port has not been blocked. The grant tables must be properly set up so that the server can use them for access control. For some distribution types (such as ...
https://dev.mysql.com/doc/refman/8.0/en/mysqlslap.html
mysqlslap runs in three stages: Create schema, table, and optionally any stored programs or data to use for the test. --create=value Command-Line Format --create=value Type String The file or string containing the statement to use for creating the ...Invoke mysqlslap like this: mysqlslap [options] Some options such as --create or --query enable you to specify a string containing an SQL statement or a file containing ...
https://dev.mysql.com/doc/refman/8.0/en/ldap-pluggable-authentication.html
LDAP pluggable authentication provides these capabilities: External authentication: LDAP authentication enables MySQL Server to accept connections from users defined outside the MySQL grant tables in LDAP directories. The following tables show the ... Note LDAP pluggable authentication is an extension included in MySQL Enterprise Edition, a commercial ...
https://dev.mysql.com/doc/refman/8.0/en/time-zone-support.html
Note Named time zones can be used only if the time zone information tables in the mysql database have been created and populated. The MySQL installation procedure creates the time zone tables, but does not load them. This section describes the time ...Beginning with MySQL 8.0.19, time zone offsets are also supported for inserted datetime values; see Section 13.2.2, “The DATE, DATETIME, and TIMESTAMP Types”, for more ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-best-practices.html
Run the server with the --sql_mode=NO_ENGINE_SUBSTITUTION option to prevent tables from being created with storage engines that you do not want to use. Specify a primary key for every table using the most frequently queried column or columns, or an ...Adding foreign keys ensures that referenced columns are indexed, which can improve ...
https://dev.mysql.com/doc/refman/8.0/en/optimizing-innodb-storage-layout.html
Once your data reaches a stable size, or a growing table has increased by tens or some hundreds of megabytes, consider using the OPTIMIZE TABLE statement to reorganize the table and compact any wasted space. The reorganized tables require less disk ...This is a straightforward technique that can improve performance when other techniques such as improving index usage or tuning application code are not ...
https://dev.mysql.com/doc/refman/8.0/en/storage-engine-setting.html
When you create a new table, you can specify which storage engine to use by adding an ENGINE table option to the CREATE TABLE statement: -- ENGINE=INNODB not needed unless you have set a different -- default storage engine. CREATE TABLE t1 (i INT) ...For example, in a replication setup, perhaps your source server uses InnoDB tables for maximum safety, but the replica servers use other storage engines for speed at the expense of durability or ...