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https://dev.mysql.com/doc/refman/5.7/en/too-many-connections.html
If clients encounter Too many connections errors when attempting to connect to the mysqld server, all available connections are in use by other clients. The permitted number of connections is controlled by the max_connections system variable. The ...
https://dev.mysql.com/doc/refman/5.7/en/unix-signal-response.html
On Unix and Unix-like systems, a process can be the recipient of signals sent to it by the root system account or the system account that owns the process. Some command interpreters associate certain key sequences with signals, such as Control+C to ...
https://dev.mysql.com/doc/refman/5.7/en/validate-password.html
The validate_password plugin serves to improve security by requiring account passwords and enabling strength testing of potential passwords. This plugin exposes a set of system variables that enable you to configure password policy. The ...
https://dev.mysql.com/doc/refman/5.7/en/my-print-defaults.html
my_print_defaults displays the options that are present in option groups of option files. The output indicates what options are used by programs that read the specified option groups. For example, the mysqlcheck program reads the [mysqlcheck] and ...--defaults-extra-file=file_name, --extra-file=file_name, -e file_name Read this option file after the global option file but (on Unix) before the user option ...
https://dev.mysql.com/doc/refman/5.7/en/information-schema-files-table.html
For NDB: The name of an UNDO log file created by CREATE LOGFILE GROUP or ALTER LOGFILE GROUP, or of a data file created by CREATE TABLESPACE or ALTER TABLESPACE. For NDB: The name of the log file group to which the log file or data file belongs. For ... The FILES table provides information about the files in which MySQL tablespace data is ...
https://dev.mysql.com/doc/refman/5.7/en/windows-pluggable-authentication.html
Windows pluggable authentication uses the identity of the client to check whether it is a given account or a member of a group. Suppose that the Windows users Rafal and Tasha should be permitted to connect to MySQL, as well as any users in the ...
https://dev.mysql.com/doc/refman/5.7/en/aggregate-functions.html
They are often used with a GROUP BY clause to group values into subsets. If you use an aggregate function in a statement containing no GROUP BY clause, it is equivalent to grouping on all rows. For more information, see Section 12.19.3, “MySQL ...
https://dev.mysql.com/doc/refman/5.7/en/create-tablespace.html
For example, you cannot have a tablespace and a log file group with the same name, or a tablespace and a data file with the same name. A log file group of one or more UNDO log files must be assigned to the tablespace to be created with the USE ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-nutshell.html
If older client software cannot be upgraded immediately, the new named_pipe_full_access_group system variable can be used to give a Windows group the necessary permissions to open a named pipe connection. Implementation for the ONLY_FULL_GROUP_BY ...
https://dev.mysql.com/doc/refman/5.7/en/audit-log-restrictions.html
Consequently, MySQL Enterprise Audit and Group Replication cannot be used together. MySQL Enterprise Audit is subject to these general restrictions: Only SQL statements are logged. Changes made by no-SQL APIs, such as memcached, Node.JS, and the ...