https://dev.mysql.com/debugging-server.html
It may be a good idea to run mysqladmin -i10 processlist status in some window if you are experiencing performance problems or problems when new clients cannot connect. If you are using some functionality that is very new in MySQL, you can try to ...
https://dev.mysql.com/drop-server.html
Dropping a server for a table does not affect any FEDERATED tables that used this connection information when they were created. DROP SERVER [ IF EXISTS ] server_name Drops the server definition for the server named server_name. DROP SERVER is not ...
https://dev.mysql.com/entering-queries.html
Make sure that you are connected to the server, as discussed in the previous section. Doing so does not in itself select any database to work with, but that is okay. At this point, it is more important to find out a little about how to issue ...
https://dev.mysql.com/error-interfaces.html
For example, (using the mysql client), a failure to connect to the server might result in this message: shell> mysql -h no-such-host ERROR 2005 (HY000): Unknown MySQL server host 'no-such-host' (0) The perror program provides information from the ...
https://dev.mysql.com/error-log-format.html
This ID indicates which part of the server produced the message, and is consistent with general query log and slow query log messages, which include the connection thread ID. Each error log sink (writer) component has a characteristic output format ...
https://dev.mysql.com/error-log-rule-based-filtering.html
MySQL error code MY-010914 (ER_ABORTING_USER_CONNECTION): Aborted connection %u to db: '%-.192s' user: '%-.48s' host: '%-.64s' (%-.64s). MySQL error code MY-001131 (ER_PASSWORD_ANONYMOUS_USER): You are using MySQL as an anonymous user and anonymous ... The log_filter_dragnet log filter component enables log filtering based on user-defined ...
https://dev.mysql.com/faqs-c-api.html
What is “MySQL Native C API”? What are typical benefits and use cases? libmysql is a C-based API that you can use in C applications to connect with the MySQL database server. What if I want to use the “NoSQL” X DevAPI? For C-language and X ...What is “MySQL Native C API”? What are typical benefits and use cases? ...
https://dev.mysql.com/faqs-general.html
There is one thread for the LinuxThreads manager, one thread to handle connections, and one thread to handle alarms and signals. Why did MySQL version numbering skip versions 6 and 7 and go straight to 8.0? A.1.3. Does MySQL 8.0 have a NOW() ...
https://dev.mysql.com/federated-description.html
Instead, the table definition includes a connection string that points to the remote table. When you create a table using one of the standard storage engines (such as MyISAM, CSV or InnoDB), the table consists of the table definition and the ...
https://dev.mysql.com/forcing-innodb-recovery.html
6 (SRV_FORCE_NO_LOG_REDO) Does not do the redo log roll-forward in connection with recovery. To investigate database page corruption, you might dump your tables from the database with SELECT ... Usually, most of the data obtained in this way is ...
