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https://dev.mysql.com/doc/refman/8.4/en/innodb-deadlocks-handling.html
It explains how to organize database operations to minimize deadlocks and the subsequent error handling required in applications. Information about each deadlock, not just the latest one, is recorded in the MySQL error log. This section builds on ...
https://dev.mysql.com/doc/refman/8.4/en/known-issues.html
The source and replica run different MySQL versions, and the optimizer code differs between these versions. For example, the following does not work: mysql> SELECT * FROM temp_table, temp_table AS t2; ERROR 1137: Can't reopen table: 'temp_table' The ... This section lists known issues in recent versions of ...
https://dev.mysql.com/doc/refman/8.4/en/linux-installation-yum-repo.html
{platform}: The platform code, such as el7, el8, el9, fc41, or fc42. A password for the superuser is set and stored in the error log file. Before You Start As a popular, open-source software, MySQL, in its original or re-packaged form, is widely ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-event-reports.html
Node logs are intended to be used only during application development, or for debugging application code. Each reportable event can be distinguished according to three different criteria: Category: This can be any one of the following values: ... In ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-programs-ndb-desc.html
--core-file Command-Line Format --core-file Write core file on error; used in debugging. ndb_desc provides a detailed description of one or more NDB tables. Usage ndb_desc -c connection_string tbl_name -d db_name [options] ndb_desc -c ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-replication-failover.html
Important You must ensure that the replica mysqld is started with --replica-skip-errors=ddl_exist_errors before executing START REPLICA. Note @file is a string value such as '/var/log/mysql/replication-source-bin.00001', and so must be quoted when ... In the event that the primary Cluster replication process fails, it is possible to switch over to the secondary replication ...
https://dev.mysql.com/doc/refman/8.4/en/pam-pluggable-authentication.html
For example: mysql> SELECT PLUGIN_NAME, PLUGIN_STATUS FROM INFORMATION_SCHEMA.PLUGINS WHERE PLUGIN_NAME LIKE '%pam%'; +--------------------+---------------+ | PLUGIN_NAME | PLUGIN_STATUS | +--------------------+---------------+ | authentication_pam ... Note PAM pluggable authentication is an extension included in MySQL Enterprise Edition, a commercial ...
https://dev.mysql.com/doc/refman/8.4/en/performance-schema-quick-start.html
Check the server error log for information about what went wrong. EVENT_NAME indicates what was instrumented and SOURCE indicates which source file contains the instrumented code. This section briefly introduces the Performance Schema with examples ...
https://dev.mysql.com/doc/refman/8.4/en/performance-schema-timing.html
Events are collected by means of instrumentation added to the server source code. If a processor's cycle rate fluctuates, conversion from cycles to real-time units is subject to error. Their accuracy is subject to the usual forms of error ...
https://dev.mysql.com/doc/refman/8.4/en/replication-channels.html
The error codes and messages that are issued when multi-source replication is enabled specify the channel that generated the error. In MySQL multi-source replication, a replica opens multiple replication channels, one for each source server. The ...