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https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-ndbinfo-cpustat-50ms.html
The cpustat_50ms table provides raw, per-thread CPU data obtained each 50 milliseconds for each thread running in the NDB kernel. Like cpustat_1sec and cpustat_20sec, this table shows 20 measurement sets per thread, each referencing a period of the ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-ndbinfo-cpustat.html
The cpustat table provides per-thread CPU statistics gathered each second, for each thread running in the NDB kernel.
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-ndbinfo-server-locks.html
This may be useful for correlating locking patterns with specific MySQL user sessions, queries, or use cases. The server_locks table is similar in structure to the cluster_locks table, and provides a subset of the information found in the latter ...
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. The values of the os_ru_utime, os_ru_stime, os_ru_minflt, os_ru_majflt, os_ru_nvcsw, and os_ru_nivcsw columns are obtained using the system ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-overview-requirements.html
Communication latency between these processes can directly affect the observed performance and latency of user queries. One of the strengths of NDB Cluster is that it can be run on commodity hardware and has no unusual requirements in this regard, ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-programs-ndb-mgm.html
Advanced users can also employ this API for programming dedicated management processes to perform tasks similar to those performed by ndb_mgm. The ndb_mgm management client process is actually not needed to run the cluster. Its value lies in ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-shm-definition.html
For optimum performance, you can define a spin time for the SHM transporter (ShmSpinTime parameter); this affects both the data node receiver thread and the poll owner (receive thread or user thread) in NDB. Communications between NDB cluster nodes ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-enterprise-telemetry.html
It enables users to instrument their applications in order to export observability data: traces, metrics and logs, enabling increased granularity of debugging and testing. The MySQL telemetry component is based on the OpenTelemetry (OTel) project, ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-shell-userguide.html
For documentation on the concepts and usage of X DevAPI, which is implemented in MySQL Shell, see X DevAPI User Guide. MySQL Shell is an advanced client and code editor for MySQL Server. In addition to the provided SQL functionality, similar to ...
https://dev.mysql.com/doc/refman/5.7/en/mysql.html
mysql is a simple SQL shell with input line editing capabilities. When used interactively, query results are presented in an ASCII-table format. When used noninteractively (for example, as a filter), the result is presented in tab-separated format.