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https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-online-add-node-example.html
In this section we provide a detailed example illustrating how to add new NDB Cluster data nodes online, starting with an NDB Cluster having 2 data nodes in a single node group and concluding with a cluster having 4 data nodes in 2 node groups.
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-params-ndbd.html
IndexStatSaveScale: Scaling factor used in determining size of stored index statistics. MaxNoOfSavedMessages: Maximum number of error messages to write in error log and maximum number of trace files to retain. The listings in this section provide ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-programs-ndb-size-pl.html
Usage perl ndb_size.pl [--database={db_name|ALL}] [--hostname=host[:port]] [--socket=socket] \ [--user=user] [--password=password] \ [--help|-h] [--format={html|text}] \ [--loadqueries=file_name] [--savequeries=file_name] By default, this utility ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-replication.html
NDB Cluster supports asynchronous replication, more usually referred to simply as “replication”. This section explains how to set up and manage a configuration in which one group of computers operating as an NDB Cluster replicates to a second ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-what-is-new.html
Pushdown joins between queries featuring very large and possibly overlapping IN() and NOT IN() lists are now handled in a correct and safe manner. What is New in NDB Cluster 8.4 Changes in NDB 8.x Innovation Releases The following sections describe ...
https://dev.mysql.com/doc/refman/8.4/en/performance-schema-system-variables.html
This variable should not be changed, unless to set it to 0 to disable all statement instrumentation and save all memory associated with it. This implementation queries active thread data from the Performance Schema rather than the thread manager and ...The Performance Schema automatically sizes the values of several of its parameters at server startup if they are not set ...
https://dev.mysql.com/doc/refman/8.4/en/performance-schema-timing.html
Events are collected by means of instrumentation added to the server source code. Instruments time events, which is how the Performance Schema provides an idea of how long events take. It is also possible to configure instruments not to collect ...
https://dev.mysql.com/doc/refman/8.4/en/start-group-replication.html
When you specify user credentials on START GROUP_REPLICATION, the credentials are saved in memory only, and are removed by a STOP GROUP_REPLICATION statement or server shutdown. START GROUP_REPLICATION [USER='user_name'] [, PASSWORD='user_pass'] [, ...
https://dev.mysql.com/doc/mysql-enterprise-backup/8.4/en/backup-incremental-options.html
It saves you from having to specify an ever-changing, unpredictable LSN value when doing a succession of incremental backups. For an overview of incremental backups and usage examples for these options, see Section 4.3.3, “Making a Differential ...
https://dev.mysql.com/doc/mysql-enterprise-backup/8.4/en/meb-troubleshooting.html
By default, the same output is also saved to a log file in the backup_dir for use in error diagnosis. To troubleshoot issues regarding backup and restore with the MySQL Enterprise Backup product, consider the following aspects: Before ...