https://dev.mysql.com/mysql-cluster-ndbinfo-cpustat.html
The cpustat table provides per-thread CPU statistics gathered each second, for each thread running in the NDB kernel. The following table provides information about the columns in the cpustat table. For each column, the table shows the name, data ...
https://dev.mysql.com/mysql-cluster-programs-ndb-mgmd.html
--config-cache Property Value Command-Line Format --config-cache[=TRUE|FALSE] Type Boolean Default Value TRUE This option, whose default value is 1 (or TRUE, or ON), can be used to disable the management server's configuration cache, so that it ...
https://dev.mysql.com/mysql-commands.html
Sometimes a very wide result set is difficult to read on the screen. Have a tee file enabled and pager set to less, and you are able to browse the results using the less program and still have everything appended into a file the same time. The ...
https://dev.mysql.com/mysqlpump.html
This option is disabled by default because histogram generation for large tables can take a long time. It is useful only with transactional tables such as InnoDB, because then it dumps the consistent state of the database at the time when START ...
https://dev.mysql.com/performance-schema-instrument-filtering.html
The setup_instruments table lists the available instruments: mysql> SELECT NAME, ENABLED, TIMED FROM performance_schema.setup_instruments; +---------------------------------------------------+---------+-------+ | NAME | ENABLED | TIMED | ...| ...
https://dev.mysql.com/replication-delayed.html
MySQL supports delayed replication such that a slave server deliberately executes transactions later than the master by at least a specified amount of time. In MySQL 8.0, the method of delaying replication depends on two timestamps, ...This section ...
https://dev.mysql.com/show-processlist.html
row *************************** Id: 1 User: system user Host: db: NULL Command: Connect Time: 1030455 State: Waiting for master to send event Info: NULL *************************** 2. row *************************** Id: 2 User: system user Host: db: ... SHOW [FULL] PROCESSLIST SHOW PROCESSLIST shows which threads are ...
https://dev.mysql.com/source-configuration-options.html
Many options configure compile-time defaults that can be overridden at server startup. -DBUNDLE_RUNTIME_LIBRARIES=bool Whether to bundle runtime libraries with server MSI and Zip packages for Windows. Clients that make no explicit arrangements ...
https://dev.mysql.com/sys-schema-index-statistics.html
select_latency The total wait time of timed reads using the index. insert_latency The total wait time of timed inserts into the index. update_latency The total wait time of timed updates in the index. delete_latency The total wait time of timed ...
https://dev.mysql.com/sys-wait-classes-global-by-avg-latency.html
total_latency The total wait time of timed occurrences of events in the class. min_latency The minimum single wait time of timed occurrences of events in the class. avg_latency The average wait time per timed occurrence of events in the class.
