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https://dev.mysql.com/doc/refman/8.0/en/locking-service.html
Locking Service Monitoring The locking service is implemented using the MySQL Server metadata locks framework, so you monitor locking service locks acquired or waited for by examining the Performance Schema metadata_locks table. MySQL distributions ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-config-send-buffers.html
You can use the ndbinfo.transporters table to monitor send buffer memory usage, and to detect slowdown and overload conditions that can adversely affect performance. The NDB kernel employs a unified send buffer whose memory is allocated dynamically ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-limitations-disk-data.html
Disk data objects are subject to the following maximums and minimums: Maximum number of tablespaces: 232 (4294967296) Maximum number of data files per tablespace: 216 (65536) The minimum and maximum possible sizes of extents for tablespace data ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-management.html
The values of these variables can be read in the mysql client from the output of a SHOW STATUS statement, or by querying either the Performance Schema session_status or global_status table. By comparing the values of the status variables before and ... Managing an NDB Cluster involves a number of tasks, the first of which is to configure and start NDB ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-ndb-innodb-usage.html
The following table lists supported application features according to the storage engine to which each feature is typically better suited. When comparing application feature requirements to the capabilities of InnoDB with NDB, some are clearly more ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-overview.html
When data is stored by the NDB storage engine, the tables (and table data) are stored in the data nodes. Such tables are directly accessible from all other MySQL servers (SQL nodes) in the cluster. NDB Cluster is a technology that enables ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-programs-ndb-config.html
All options that can be used with ndb_config are shown in the following table. This tool extracts current configuration information for data nodes, SQL nodes, and API nodes from one of a number of sources: an NDB Cluster management node, or its ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-programs-ndb-error-reporter.html
Options that can be used with ndb_error_reporter are shown in the following table. ndb_error_reporter creates an archive from data node and management node log files that can be used to help diagnose bugs or other problems with a cluster. It is ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-programs-ndb-mgm.html
All options that can be used with ndb_mgm are shown in the following table. The ndb_mgm management client process is actually not needed to run the cluster. Its value lies in providing a set of commands for checking the cluster's status, starting ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-programs-ndb-perror.html
The following table includes all options that are specific to the NDB Cluster program ndb_perror. ndb_perror shows information about an NDB error, given its error code. This includes the error message, the type of error, and whether the error is ...