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https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-programs-ndb-print-frag-file.html
It is intended for use in helping to diagnose issues with data node restarts. Each fragment file contains records of the fragments belonging to each NDB table. For more information about cluster fragment files, see NDB Cluster Data Node File System ...
https://dev.mysql.com/doc/refman/5.7/en/performance-schema-stage-summary-tables.html
row *************************** EVENT_NAME: stage/sql/checking permissions COUNT_STAR: 57 SUM_TIMER_WAIT: 26501888880 MIN_TIMER_WAIT: 7317456 AVG_TIMER_WAIT: 464945295 MAX_TIMER_WAIT: 12858936792 ... row *************************** EVENT_NAME: ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-config.html
mysql_config provides you with useful information for compiling your MySQL client and connecting it to MySQL. It is a shell script, so it is available only on Unix and Unix-like systems. Note As of MySQL 5.7.9, pkg-config can be used as an ...
https://dev.mysql.com/doc/refman/5.7/en/show-status.html
mysql> SHOW STATUS; +--------------------------+------------+ | Variable_name | Value | +--------------------------+------------+ | Aborted_clients | 0 | | Aborted_connects | 0 | | Bytes_received | 155372598 | | Bytes_sent | 1176560426 | | ... SHOW ...
https://dev.mysql.com/doc/refman/5.7/en/alter-table-problems.html
If you get a duplicate-key error when using ALTER TABLE to change the character set or collation of a character column, the cause is either that the new column collation maps two keys to the same value or that the table is corrupted. In the latter ...
https://dev.mysql.com/doc/refman/5.7/en/problems-connecting.html
Your firewall may be configured on the basis of the application being executed, or the port number used by MySQL for communication (3306 by default). After a fresh installation, if you try to log on to the server as root without using a password, ...
https://dev.mysql.com/doc/refman/5.7/en/getting-information.html
What if you forget the name of a database or table, or what the structure of a given table is (for example, what its columns are called)? MySQL addresses this problem through several statements that provide information about the databases and ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-added-deprecated-removed-7-6.html
MaxFKBuildBatchSize: Maximum scan batch size to use for building foreign keys. MaxReorgBuildBatchSize: Maximum scan batch size to use for reorganization of table partitions. MaxUIBuildBatchSize: Maximum scan batch size to use for building unique ...
https://dev.mysql.com/doc/refman/5.7/en/performance-schema-table-handles-table.html
The Performance Schema exposes table lock information through the table_handles table to show the table locks currently in effect for each opened table handle. This information shows which table handles the server has open, how they are locked, and ...
https://dev.mysql.com/doc/refman/5.7/en/information-schema-tp-thread-state-table.html
PROCESS_COUNT The 10ms interval in which the statement that uses this thread is currently executing. 0 means no statement is executing, 1 means it is in the first 10ms, and so forth. The TP_THREAD_STATE table has one row per thread created by the ...