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https://dev.mysql.com/doc/refman/8.0/en/subquery-errors.html
Incorrect number of rows from subquery: ERROR 1242 (ER_SUBSELECT_NO_1_ROW) SQLSTATE = 21000 Message = "Subquery returns more than 1 row" This error occurs for statements where the subquery must return at most one row but returns multiple rows. If ...
https://dev.mysql.com/doc/refman/8.0/en/error-log-rotation.html
If you flush the error log using a FLUSH ERROR LOGS or FLUSH LOGS statement, or a mysqladmin flush-logs command, the server closes and reopens any error log file to which it is writing. To rename an error log file, do so manually before flushing.
https://dev.mysql.com/doc/refman/8.0/en/error-log-filtering.html
For error log filtering, MySQL offers a choice of components: log_filter_internal: This filter component provides error log filtering based on log event priority and error code, in combination with the log_error_verbosity and ... Error log ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-limitations-error-handling.html
Starting, stopping, or restarting a node may give rise to temporary errors causing some transactions to fail. When first starting a node, it is possible that you may see Error 1204 Temporary failure, distribution changed and similar temporary ...
https://dev.mysql.com/doc/refman/8.0/en/error-log-json.html
This section describes how to configure error logging using the built-in filter, log_filter_internal, and the JSON sink, log_sink_json, to take effect immediately and for subsequent server startups. For general information about configuring error ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-error-log-table.html
row *************************** LOGGED: 2020-08-06 09:25:00.338624 THREAD_ID: 0 PRIO: System ERROR_CODE: MY-010116 SUBSYSTEM: Server DATA: mysqld (mysqld 8.0.23) starting as process 96344 *************************** 2. row ... Of the logs the MySQL ...Typically, the server writes diagnostics to a file on the server host or to a system log ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-error-handling.html
Other errors are mostly detected by the MySQL layer of code (above the InnoDB storage engine level), and they roll back the corresponding SQL statement. If you run out of file space in a tablespace, a MySQL Table is full error occurs and InnoDB ...
https://dev.mysql.com/doc/refman/8.0/en/communication-errors.html
If connection problems occur such as communication errors or aborted connections, use these sources of information to diagnose problems: The error log. If the log_error_verbosity system variable is set to 3, you might find messages like this in ...
https://dev.mysql.com/doc/refman/8.0/en/common-errors.html
This section lists some errors that users frequently encounter when running MySQL programs. Although the problems show up when you try to run client programs, the solutions to many of the problems involves changing the configuration of the MySQL ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-programs-ndb-error-reporter.html
ndb_error_reporter creates an archive from data node and management node log files that can be used to help diagnose bugs or other problems with a cluster. Options that can be used with ndb_error_reporter are shown in the following table. It is ...