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https://dev.mysql.com/doc/refman/8.4/en/locking-functions.html
While held by one session, other sessions cannot obtain a lock of the same name. Returns 1 if the lock was obtained successfully, 0 if the attempt timed out (for example, because another client has previously locked the name), or NULL if an error ...
https://dev.mysql.com/doc/refman/8.4/en/making-windows-dumps.html
Program Database files (with suffix pdb) are included in the ZIP Archive Debug Binaries & Test Suite distribution of MySQL. These files provide information for debugging your MySQL installation in the event of a problem. This is a separate download ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-install-linux-rpm.html
The architecture designation should also be appropriate to the machine on which the RPM is to be installed; in particular, you should keep in mind that 64-bit RPMs cannot be used with 32-bit operating systems. This section covers the steps ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-mgm-client-commands.html
In addition to the central configuration file, a cluster may also be controlled through a command-line interface available through the management client ndb_mgm. Commands for the event logs are given in Section 25.6.3, “Event Reports Generated in ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-ndbinfo-cluster-locks.html
The cluster_locks table provides information about current lock requests holding and waiting for locks on NDB tables in an NDB Cluster, and is intended as a companion table to cluster_operations. Information obtain from the cluster_locks table may ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-ndbinfo-server-locks.html
The server_locks table is similar in structure to the cluster_locks table, and provides a subset of the information found in the latter table, but which is specific to the SQL node (MySQL server) where it resides. (The cluster_locks table provides ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-programs-ndb-sign-keys.html
Management of TLS keys and certificates in implemented in NDB Cluster as the executable utility program ndb_sign_keys, which can normally be found in the MySQL bin directory. The program performs such functions as creating, signing, and retiring ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-programs-ndb-top.html
ndb_top displays running information in the terminal about CPU usage by NDB threads on an NDB Cluster data node. Each thread is represented by two rows in the output, the first showing system statistics, the second showing the measured statistics ...
https://dev.mysql.com/doc/refman/8.4/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/8.4/en/mysql-indexes.html
Indexes are used to find rows with specific column values quickly. Without an index, MySQL must begin with the first row and then read through the entire table to find the relevant rows. If the table has an index for the columns in question, MySQL ...