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https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-ndbinfo-disk-write-speed-aggregate.html
The disk_write_speed_aggregate table provides aggregated information about the speed of disk writes during LCP, backup, and restore operations.
https://dev.mysql.com/doc/refman/5.7/en/data-directory-initialization.html
For example, you might see an error like this: bin/mysqld: error while loading shared libraries: libnuma.so.1: cannot open shared object file: No such file or directory If this happens, you must install the missing libraries manually or with your ...
https://dev.mysql.com/doc/refman/5.7/en/faqs-stored-procs.html
Do stored procedures have a statement for raising application errors? A.4.13. Do the preceding limitations affect the ability of MySQL to do point-in-time recovery? A.4.28. Can a stored procedure call a trigger? A stored procedure can execute an SQL ...Where can I find documentation for MySQL stored procedures and stored functions? ...
https://dev.mysql.com/doc/refman/5.7/en/channels-startup-options.html
--slave_net-timeout=N This value is set per channel, so that each channel waits for N seconds to check for a broken connection. --max-relay-log-size=size Maximum size of the individual relay log file for each channel; after reaching this limit, the ... This section describes startup options which are impacted by the addition of replication ...
https://dev.mysql.com/doc/refman/5.7/en/rename-table.html
To execute RENAME TABLE, there must be no active transactions or tables locked with LOCK TABLES. If any errors occur during a RENAME TABLE, the statement fails and no changes are made. If a table has triggers, attempts to rename the table into a ...
https://dev.mysql.com/doc/refman/5.7/en/storage-engine-setting.html
You can set the default storage engine for the current session by setting the default_storage_engine variable: SET default_storage_engine=NDBCLUSTER; The storage engine for TEMPORARY tables created with CREATE TEMPORARY TABLE can be set separately ... When you create a new table, you can specify which storage engine to use by adding an ENGINE table option to the CREATE TABLE statement: -- ENGINE=INNODB not needed unless you have set a different -- default storage ...
https://dev.mysql.com/doc/refman/5.7/en/information-schema-key-column-usage-table.html
The KEY_COLUMN_USAGE table has these columns: CONSTRAINT_CATALOG The name of the catalog to which the constraint belongs. CONSTRAINT_SCHEMA The name of the schema (database) to which the constraint belongs. TABLE_CATALOG The name of the catalog to ...
https://dev.mysql.com/doc/refman/5.7/en/server-loadable-functions.html
MySQL supports loadable functions, that is, functions that are not built in but can be loaded at runtime (either during startup or later) to extend server capabilities, or unloaded to remove capabilities. MySQL Enterprise Edition includes a ...For ...
https://dev.mysql.com/doc/refman/5.7/en/show-slave-hosts.html
SHOW SLAVE HOSTS should be executed on a server that acts as a replication source. This is the server ID of the server on which SHOW SLAVE HOSTS is executed, so this same value is listed for each row in the result. SHOW SLAVE HOSTS Displays a list ...
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 ...