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https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-ndbinfo-transporters.html
This information is shown in the table's status column, which can have any one of the following values: CONNECTING, CONNECTED, DISCONNECTING, or DISCONNECTED. Connections to API and management nodes which are configured but not currently connected ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-overview.html
NDB Cluster is a technology that enables clustering of in-memory databases in a shared-nothing system. The shared-nothing architecture enables the system to work with very inexpensive hardware, and with a minimum of specific requirements for ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-quick.html
To familiarize you with the basics, we describe the simplest possible configuration for a functional NDB Cluster. After this, you should be able to design your desired setup from the information provided in the other relevant sections of this ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-replication-backups.html
This section discusses making backups and restoring from them using NDB Cluster replication. We assume that the replication servers have already been configured as covered previously (see Section 21.7.5, “Preparing the NDB Cluster for ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-enterprise-audit.html
MySQL Enterprise Edition includes MySQL Enterprise Audit, implemented using a server plugin. MySQL Enterprise Audit uses the open MySQL Audit API to enable standard, policy-based monitoring and logging of connection and query activity executed on ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-enterprise-firewall.html
MySQL Enterprise Edition includes MySQL Enterprise Firewall, an application-level firewall that enables database administrators to permit or deny SQL statement execution based on matching against allowlists of accepted statement patterns. This ...
https://dev.mysql.com/doc/refman/5.7/en/mysql.html
mysql is a simple SQL shell with input line editing capabilities. When used interactively, query results are presented in an ASCII-table format. When used noninteractively (for example, as a filter), the result is presented in tab-separated format.
https://dev.mysql.com/doc/refman/5.7/en/mysqldump-upgrade-testing.html
On the production server: $> mysqldump --all-databases --no-create-info > dump-data.sql On the upgraded server: $> mysql < dump-data.sql Now check the table contents and run some test queries. When contemplating a MySQL upgrade, it is prudent to ...
https://dev.mysql.com/doc/refman/5.7/en/numeric-type-attributes.html
Note The ZEROFILL attribute is ignored for columns involved in expressions or UNION queries. MySQL supports an extension for optionally specifying the display width of integer data types in parentheses following the base keyword for the type. For ...
https://dev.mysql.com/doc/refman/5.7/en/optimize-multi-tables.html
Some techniques for keeping individual queries fast involve splitting data across many tables. When the number of tables runs into the thousands or even millions, the overhead of dealing with all these tables becomes a new performance consideration.