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https://dev.mysql.com/doc/refman/9.7/en/performance-schema-status-monitoring.html
If the value chosen for performance_schema_max_mutex_classes is too small, no error is reported in the error log and there is no failure at runtime. Names for these variables have several forms: Performance_schema_xxx_classes_lost indicates how many ...
https://dev.mysql.com/doc/refman/9.7/en/performance-schema-timing.html
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 associated with conversion from one unit to another. Events are collected by means of ...
https://dev.mysql.com/doc/refman/9.7/en/preface.html
Warranty Disclaimer The information contained herein is subject to change without notice and is not warranted to be error-free. If you find any errors, please report them to us in writing. This is the Reference Manual for the MySQL Database System, ...
https://dev.mysql.com/doc/refman/9.7/en/prepare.html
This means that if the new statement contains an error and cannot be prepared, an error is returned and no statement with the given name exists. PREPARE stmt_name FROM preparable_stmt The PREPARE statement prepares a SQL statement and assigns it a ...
https://dev.mysql.com/doc/refman/9.7/en/purge-binary-logs.html
PURGE BINARY LOGS TO and PURGE BINARY LOGS BEFORE both fail with an error when binary log files listed in the .index file had been removed from the system by some other means (such as using rm on Linux). (Bug #18199, Bug #18453) To handle such ...
https://dev.mysql.com/doc/refman/9.7/en/replication-asynchronous-connection-failover-replica.html
When the feature is active and correctly configured, if the primary that is replicating goes offline or into an error state, the new primary starts replication on the same channel when it is elected. When the mysql_start_failover_channels_if_primary ... Asynchronous connection failover for replicas is activated automatically for a replication channel on a Group Replication primary when you set SOURCE_CONNECTION_AUTO_FAILOVER=1 in the CHANGE REPLICATION SOURCE TO statement for the ...
https://dev.mysql.com/doc/refman/9.7/en/replication-binlog-encryption-key-rotation.html
If any of the first four steps of the binary log master key rotation process cannot be completed correctly, an error message is issued explaining the situation and the consequences for the encryption status of the binary log files and relay log ...
https://dev.mysql.com/doc/refman/9.7/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 ...
https://dev.mysql.com/doc/refman/9.7/en/replication-features-js-programs.html
If the replica has the MLE component installed, an error is raised when the replica attempts to execute such a statement, leading to a break in replication. A JavaScript stored program created on a server without the component installed is not ...
https://dev.mysql.com/doc/refman/9.7/en/replication-features-memory.html
replica_exec_mode=IDEMPOTENT applies globally to all tables, so it may hide other replication errors in non-MEMORY tables. When a replication source server shuts down and restarts, its MEMORY tables become empty. To replicate this effect to ...