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https://dev.mysql.com/doc/refman/9.7/en/mysql-cluster-replication-mta.html
To use this functionality with NDB Cluster, it is necessary that the replica be configured to use multiple worker threads. To do this, set replica_parallel_workers to control the number of worker threads on the replica. MTA Configuration: Source In ...
https://dev.mysql.com/doc/refman/9.7/en/mysql-cluster-shm-definition.html
Communications between NDB cluster nodes are normally handled using TCP/IP. The shared memory (SHM) transporter is distinguished by the fact that signals are transmitted by writing in memory rather than on a socket. The shared-memory transporter ...
https://dev.mysql.com/doc/refman/9.7/en/mysql-cluster-tls.html
This section discusses the implementation and use of Transport Layer Security (TLS) to secure network communications in MySQL NDB Cluster. Note TLS for NDB Cluster on Linux requires compiled-in support for OpenSSL 1.1 or later. For this reason, it ...
https://dev.mysql.com/doc/refman/9.7/en/optimizing-innodb-bulk-data-loading.html
These performance tips supplement the general guidelines for fast inserts in Section 10.2.5.1, “Optimizing INSERT Statements”. When importing data into InnoDB, turn off autocommit mode, because it performs a log flush to disk for every insert.
https://dev.mysql.com/doc/refman/9.7/en/pam-pluggable-authentication.html
Note PAM pluggable authentication is an extension included in MySQL Enterprise Edition, a commercial product. MySQL Enterprise Edition supports an authentication method that enables MySQL Server to use PAM (Pluggable Authentication Modules) to ...
https://dev.mysql.com/doc/refman/9.7/en/performance-schema-error-summary-tables.html
The Performance Schema maintains summary tables for aggregating statistical information about server errors (and warnings). For a list of server errors, see Server Error Message Reference. Collection of error information is controlled by the error ...
https://dev.mysql.com/doc/refman/9.7/en/performance-schema-log-status-table.html
The log_status table provides information that enables an online backup tool to copy the required log files without locking those resources for the duration of the copy process. When the log_status table is queried, the server blocks logging and ...
https://dev.mysql.com/doc/refman/9.7/en/performance-schema-prepared-statements-instances-table.html
The Performance Schema provides instrumentation for prepared statements, for which there are two protocols: The binary protocol. This is accessed through the MySQL C API and maps onto underlying server commands as shown in the following table. C ...
https://dev.mysql.com/doc/refman/9.7/en/performance-schema-query-profiling.html
The following example demonstrates how to use Performance Schema statement events and stage events to retrieve data comparable to profiling information provided by SHOW PROFILES and SHOW PROFILE statements. The setup_actors table can be used to ...
https://dev.mysql.com/doc/refman/9.7/en/performance-schema-replication-applier-status-by-worker-table.html
This table provides details of the transactions handled by applier threads on a replica or Group Replication group member. For a single-threaded replica, data is shown for the replica's single applier thread. For a multithreaded replica, data is ...