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https://dev.mysql.com/doc/refman/5.7/en/performance-schema-replication-applier-status-by-coordinator-table.html
For a multithreaded replica, the replica uses multiple worker threads and a coordinator thread to manage them, and this table shows the status of the coordinator thread. For a multithreaded replica, the replication_applier_status_by_worker table ...
https://dev.mysql.com/doc/refman/5.7/en/performance-schema-replication-connection-status-table.html
This table shows the current status of the replication I/O thread that handles the replica's connection to the source. It contains values that change during the connection, whereas replication_connection_configuration contains values which define ...
https://dev.mysql.com/doc/refman/5.7/en/replication-mode-change-online-disable-gtids.html
This section describes how to disable GTID transactions on servers that are already online. This procedure does not require taking the server offline and is suited to use in production. However, if you have the possibility to take the servers ...
https://dev.mysql.com/doc/refman/5.7/en/replication-multi-source-provision-replica.html
If the sources in the multi-source replication topology have existing data, it can save time to provision the replica with the relevant data before starting replication. In a multi-source replication topology, copying the data directory cannot be ...
https://dev.mysql.com/doc/refman/5.7/en/source-configuration-options.html
The CMake program provides a great deal of control over how you configure a MySQL source distribution. Typically, you do this using options on the CMake command line. For information about options supported by CMake, run either of these commands in ...
https://dev.mysql.com/doc/refman/5.7/en/spatial-function-argument-handling.html
Spatial values, or geometries, have the properties described in Section 11.4.2.2, “Geometry Class”. Specific functions or groups of functions may have additional or different argument-handling characteristics, as discussed in the sections where ...
https://dev.mysql.com/doc/refman/5.7/en/converting-tables-to-innodb.html
Consider using an auto-increment column if there is not another stable, unique, non-null, numeric column to use. You can designate the former primary key columns as UNIQUE NOT NULL to enforce the same constraints as the PRIMARY KEY clause, that is, ... If you have MyISAM tables that you want to convert to InnoDB for better reliability and scalability, review the following guidelines and tips before ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-limitations-transactions.html
A number of limitations exist in NDB Cluster with regard to the handling of transactions. The NDBCLUSTER storage engine supports only the READ COMMITTED transaction isolation level. To ensure that a given transaction reads only before or after ...
https://dev.mysql.com/doc/refman/5.7/en/performance-schema-replication-tables.html
At this time, there are no active replica threads, so the THREAD_ID columns are NULL and the SERVICE_STATE columns have a value of OFF. After STOP SLAVE, the THREAD_ID columns become NULL and the SERVICE_STATE columns for threads that no longer ...
https://dev.mysql.com/doc/refman/5.7/en/create-table-ndb-comment-options.html
NDB_COLUMN Options NDB_TABLE Options It is possible to set a number of options specific to NDB Cluster in the table comment or column comments of an NDB table. Table-level options for controlling read from any replica and partition balance can be ...