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https://dev.mysql.com/doc/refman/5.7/en/innodb-online-ddl.html
The online DDL feature provides support for in-place table alterations and concurrent DML. You can control aspects of a DDL operation using the ALGORITHM and LOCK clauses of the ALTER TABLE statement. For example: ALTER TABLE tbl_name ADD PRIMARY ...Benefits of this feature include: Improved responsiveness and availability in busy production environments, where making a table unavailable for minutes or hours is not ...
https://dev.mysql.com/doc/refman/5.7/en/example-auto-increment.html
To start with an AUTO_INCREMENT value other than 1, set that value with CREATE TABLE or ALTER TABLE, like this: mysql> ALTER TABLE tbl AUTO_INCREMENT = 100; InnoDB Notes For information about AUTO_INCREMENT usage specific to InnoDB, see Section ...
https://dev.mysql.com/doc/refman/5.7/en/myisamchk-general-options.html
The options described in this section can be used for any type of table maintenance operation performed by myisamchk. The sections following this one describe options that pertain only to specific operations, such as table checking or repairing.
https://dev.mysql.com/doc/refman/5.7/en/replication-options-reference.html
gtid_executed_compression_period: Compress gtid_executed table each time this many transactions have occurred. master_info_repository: Whether to write connection metadata repository, containing source information and replication I/O thread location ... The following two sections provide basic information about the MySQL command-line options and system variables applicable to replication and the binary ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-ndbinfo-config-nodes.html
The config_nodes table shows nodes configured in an NDB Cluster config.ini file. For each node, the table displays a row containing the node ID, the type of node (management node, data node, or API node), and the name or IP address of the host on ...The node_type column displays one of the following three values: MGM: Management ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-ndbinfo-logbuffers.html
The logbuffer table provides information on NDB Cluster log buffer usage. The logbuffers table contains the following columns: node_id The ID of this data node. One each of these log_type rows is shown in the logbuffers table for each data node in ...One of these rows has the log type BACKUP-DATA, which shows the amount of data buffer used during backup to copy fragments to backup ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-ndbinfo-processes.html
This table contains information about NDB Cluster node processes; each node is represented by the row in the table. Only nodes that are connected to the cluster are shown in this table. You can obtain information about nodes that are configured but ...The node_type column displays one of the following three values: MGM: Management ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-ndbinfo-threadstat.html
The threadstat table provides a rough snapshot of statistics for threads running in the NDB kernel. Since this table contains counts taken at a given point in time, for best results it is necessary to query this table periodically and store the ...
https://dev.mysql.com/doc/refman/5.7/en/replication-features-directory.html
If a DATA DIRECTORY or INDEX DIRECTORY table option is used in a CREATE TABLE statement on the source server, the table option is also used on the replica. This can be overridden by using the NO_DIR_IN_CREATE server SQL mode on the replica, which ...This can cause problems if no corresponding directory exists in the replica host's file system or if it exists but is not accessible to the replica ...
https://dev.mysql.com/doc/refman/5.7/en/replication-features-truncate.html
TRUNCATE TABLE is normally regarded as a DML statement, and so would be expected to be logged and replicated using row-based format when the binary logging mode is ROW or MIXED. However this caused issues when logging or replicating, in STATEMENT ...