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https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-configuration-overview.html
It is possible to update cluster configuration parameters marked as node online—that is, without shutting down the cluster—in this fashion. In any cluster restart, all of the cluster's management servers must be restarted for them to read the ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-ndbinfo-events.html
This table provides information about event subscriptions in NDB. The columns of the events table are listed here, with short descriptions of each: event_id The event ID name The name of the event table_id The ID of the table on which the event ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-online-add-node-example.html
You can verify that all existing data nodes were restarted using the updated configuration by checking the ndbinfo.nodes table in the mysql client. Shut down and restart each MySQL server acting as an SQL node in the cluster using mysqladmin ... In ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-tde-setup.html
Start the management server with either --initial or --reload to cause it to read the updated configuration file. Rotation of File system password: To update the encryption password used by the data nodes, perform a rolling initial restart of the ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-gr-memory-monitoring-ps-instruments-enable.html
For more information, see Section 29.3, “Performance Schema Startup Configuration” and Section 29.4, “Performance Schema Runtime Configuration”.
https://dev.mysql.com/doc/refman/8.0/en/optimization-indexes.html
Indexes also add to the cost of inserts, updates, and deletes because each index must be updated. The best way to improve the performance of SELECT operations is to create indexes on one or more of the columns that are tested in the query. The ...
https://dev.mysql.com/doc/refman/8.0/en/partitioning-hash.html
You should also keep in mind that this expression is evaluated each time a row is inserted or updated (or possibly deleted); this means that very complex expressions may give rise to performance issues, particularly when performing operations (such ... Partitioning by HASH is used primarily to ensure an even distribution of data among a predetermined number of ...
https://dev.mysql.com/doc/refman/8.0/en/partitioning-info.html
From MySQL 8.0.16, when insertions, deletions, or updates are made to partitioned tables, the binary log records information about the partition and (if any) the subpartition in which the row event took place. For an update event, the partition ...
https://dev.mysql.com/doc/refman/8.0/en/partitioning-range.html
A table that is partitioned by range is partitioned in such a way that each partition contains rows for which the partitioning expression value lies within a given range. Ranges should be contiguous but not overlapping, and are defined using the ...
https://dev.mysql.com/doc/refman/8.0/en/password-management.html
A privileged user is one who has the global CREATE USER privilege or the UPDATE privilege for the mysql system database. In this case, there must be close cooperation in the timing of when the account password change is made and propagated ... MySQL ...