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https://dev.mysql.com/doc/refman/8.0/en/error-log-configuration.html
In MySQL 8.0, error logging uses the MySQL component architecture described at Section 7.5, “MySQL Components”. The error log subsystem consists of components that perform log event filtering and writing, as well as a system variable that ...
https://dev.mysql.com/doc/refman/8.0/en/glossary.html
Because the interceptor code is only called when SQL statements return errors, it does not impose any performance penalty on the application during normal (error-free) operation. SQLState An error code defined by the JDBC standard, for exception ...
https://dev.mysql.com/doc/refman/8.0/en/perror.html
perror displays the error message for MySQL or operating system error codes. A given error code may mean different things on different operating systems. --ndb Print the error message for a MySQL Cluster error code. For example, for the ...
https://dev.mysql.com/doc/refman/8.0/en/error-log-components.html
The log_filter_internal Component Purpose: Implements filtering based on log event priority and error code, in combination with the log_error_verbosity and log_error_suppression_list system variables. This section describes the characteristics of ...A log component can be a filter or a sink: A filter processes log events, to add, remove, or modify event fields, or to delete events ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-ndb-transporter-errors.html
This section lists error codes, names, and messages that are written to the cluster log in the event of transporter errors. 0x00 TE_NO_ERROR No error 0x01 TE_ERROR_CLOSING_SOCKET Error found during closing of socket 0x02 ...
https://dev.mysql.com/doc/refman/8.0/en/error-log-event-fields.html
err_code The event error code, as a number (for example, 1022). Error events intended for the error log contain a set of fields, each of which consists of a key/value pair. An event field may be classified as core, optional, or user-defined: A core ...However, its presence in the event during event processing is not guaranteed because a core field, like any type of field, may be unset by a log ...
https://dev.mysql.com/doc/refman/8.0/en/charset-errors.html
This section describes how the MySQL server uses character sets for constructing error messages. For information about the language of error messages (rather than the character set), see Section 12.12, “Setting the Error Message Language”. For ...Character (nonbinary) string values are converted from their character set to ...
https://dev.mysql.com/doc/refman/8.0/en/error-log-destination-configuration.html
This section describes which server options configure the default error log destination, which can be the console or a named file. This is your terminal or console window unless the standard error output has been redirected to a different ...It ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-error-summary-tables.html
The Performance Schema maintains summary tables for aggregating statistical information about server errors (and warnings). For a list of server errors, see Server Error Message Reference. Collection of error information is controlled by the error ...It has these effects: For summary tables not aggregated by account, host, or user, truncation resets the summary columns to zero or NULL rather than removing ...
https://dev.mysql.com/doc/refman/8.0/en/faqs-cjk.html
Why do I get Incorrect string value error messages? To see the problem, create a table with one Unicode (ucs2) column and one Chinese (gb2312) column. Please check these references before reporting gb2312 or gbk bugs: The MySQL gbk character set is ... This set of Frequently Asked Questions derives from the experience of MySQL's Support and Development groups in handling many inquiries about CJK (Chinese-Japanese-Korean) ...