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https://dev.mysql.com/doc/refman/8.4/en/keyring-functions-general-purpose.html
Attempts to use the functions without the keyring_udf plugin result in an error. Otherwise, an error occurs: ERROR 1123 (HY000): Can't initialize function 'keyring_key_generate'; This function requires keyring_udf plugin which is not installed.
https://dev.mysql.com/doc/mysql-em-plugin/en/myoem-metric-replicationreplica-activity-category.html
Last Errno The error number of the last error that caused the SQL thread to stop. Last Error The error message of the last error that caused the SQL thread to stop. Last IO Errno The error number of the last error that caused the I/O thread to stop.
https://dev.mysql.com/doc/refman/8.4/en/problems-connecting.html
After a fresh installation, if you try to log on to the server as root without using a password, you might get the following error message. $> mysql -u root ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: NO) It means ... If you encounter problems when you try to connect to the MySQL server, the following items describe some courses of action you can take to correct the ...
https://dev.mysql.com/doc/ndbapi/en/mgm-types.html
The types described in this section are all defined in the file /storage/ndb/include/mgmapi/mgmapi.h, with the exception of Ndb_logevent_type, ndb_mgm_event_severity, ndb_mgm_logevent_handle_error, and ndb_mgm_event_category, which are defined in ...
https://dev.mysql.com/doc/refman/8.4/en/host-cache.html
The MySQL server maintains an in-memory host cache that contains information about clients: IP address, host name, and error information. The cache contains information about errors that occur during the client connection process. Some errors are ...The Performance Schema host_cache table exposes the contents of the host cache so that it can be examined using SELECT ...
https://dev.mysql.com/doc/c-api/8.4/en/mysql-stmt-fetch.html
Error code and message can be obtained by calling mysql_stmt_errno() and mysql_stmt_error(). To determine which column values were truncated when this value is returned, check the error members of the MYSQL_BIND structures used for fetching values.
https://dev.mysql.com/doc/relnotes/mysql-shell/8.4/en/news-8-4-3.html
(Bug #36657936) If clone-based recovery failed while adding an instance, the instance and Cluster could be left in an inconsistent state, returning multiple errors, and unrecoverable by rescan(). add_instance() did not properly handle clone-related ... AdminAPI Bugs Fixed Utilities Added or Changed Functionality Utilities Bugs Fixed Bugs Fixed AdminAPI Bugs Fixed Running a rescan() operation on a Replica Cluster, could result in a warning that group_replication_view_change_uuid is required, but not ...
https://dev.mysql.com/doc/mysql-monitor/8.0/en/admin-advisors-reference.html
The general query log can be very useful when you suspect an error in a client and want to know exactly what the client sent to mysqld. The cache contains information about errors that occur during the connection process. If the host cache is not ...
https://dev.mysql.com/doc/refman/8.4/en/bug-reports.html
If you get a parse error for an SQL statement, please check your syntax closely. For solutions to some common problems, see Section B.3, “Problems and Common Errors”. The most common errors made in bug reports are (a) not including the version ... Before posting a bug report about a problem, please try to verify that it is a bug and that it has not been reported already: Start by searching the MySQL online manual at ...
https://dev.mysql.com/doc/refman/8.4/en/replication-options-binary-log.html
If you specify --log-replica-updates or --replica-preserve-commit-order together with --skip-log-bin or --disable-log-bin, a warning or error message is issued. Setting this variable on the source to a value unrecognized by the replica causes the ...