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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/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/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/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-information-schema-files-table.html
The Information Schema FILES table provides metadata about all InnoDB tablespace types including file-per-table tablespaces, general tablespaces, the system tablespace, temporary table tablespaces, and undo tablespaces (if present). For more ...
https://dev.mysql.com/doc/refman/8.0/en/myisam-optimization.html
To coalesce fragmented rows and eliminate wasted space that results from deleting or updating rows, run myisamchk in recovery mode: $> myisamchk -r tbl_name You can optimize a table in the same way by using the OPTIMIZE TABLE SQL statement.
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-ndbinfo-server-operations.html
The server_operations table contains entries for all ongoing NDB operations that the current SQL node (MySQL Server) is currently involved in. It effectively is a subset of the cluster_operations table, in which operations for other SQL and API ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-ndbinfo-transporters.html
In NDB 8.0.37 and later, you can obtain similar information about individual transporters from the transporter_details table. This information is shown in the table's status column, which can have any one of the following values: CONNECTING, ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-programs-ndb-select-count.html
ndb_select_count prints the number of rows in one or more NDB tables. With a single table, the result is equivalent to that obtained by using the MySQL statement SELECT COUNT(*) FROM tbl_name. Usage ndb_select_count [-c connection_string] -ddb_name ...--connect-retries Command-Line Format --connect-retries=# Type Integer Default Value 12 Minimum Value 0 Maximum Value 12 Number of times to retry connection before giving ...