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https://dev.mysql.com/doc/refman/8.0/en/group-replication-requirements.html
The use of other storage engines, including the temporary MEMORY storage engine, might cause errors in Group Replication. Infrastructure Server Instance Configuration Server instances that you want to use for Group Replication must satisfy the ...
https://dev.mysql.com/doc/refman/8.0/en/group-replication-tuning-recovery.html
If the connection retry limit is reached without a successful connection, the distributed recovery procedure terminates with an error. Several aspects of Group Replication's distributed recovery process can be configured to suit your system. Number ...
https://dev.mysql.com/doc/refman/8.0/en/identifier-length.html
If the table name is close to the length limit for constraint names, the additional characters required for the constraint name may cause that name to exceed the limit, resulting in an error. The following table describes the maximum length for ...
https://dev.mysql.com/doc/refman/8.0/en/identifier-qualifiers.html
An unqualified name is permitted in contexts where interpretation of the name is unambiguous. A qualified name includes at least one qualifier to clarify the interpretive context by overriding a default context or providing missing context. For ...
https://dev.mysql.com/doc/refman/8.0/en/ignoring-user.html
If you get the following error, it means that when mysqld was started or when it reloaded the grant tables, it found an account in the user table that had an invalid password. Found wrong password for user 'some_user'@'some_host'; ignoring user As ...
https://dev.mysql.com/doc/refman/8.0/en/information-schema-innodb-buffer-page-lru-table.html
This allocation could potentially cause an out-of-memory error, especially for systems with multi-gigabyte buffer pools. The INNODB_BUFFER_PAGE_LRU table provides information about the pages in the InnoDB buffer pool; in particular, how they are ...
https://dev.mysql.com/doc/refman/8.0/en/information-schema-keywords-table.html
Prior to MySQL 8.0.13, selecting from the KEYWORDS table with no default database selected produced an error. The KEYWORDS table lists the words considered keywords by MySQL and, for each one, indicates whether it is reserved. Reserved keywords may ...
https://dev.mysql.com/doc/refman/8.0/en/innochecksum.html
Attempting to run innochecksum on a tablespace that the server already has open results in an Unable to lock file error. This tool reads an InnoDB tablespace file, calculates the checksum for each page, compares the calculated checksum to the stored ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-backup.html
Use the following procedure: Perform a slow shutdown of the MySQL server and make sure that it stops without errors. The key to safe database management is making regular backups. Hot and cold backups are physical backups that copy actual data ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-consistent-read.html
In this case, the transaction returns an error: ER_TABLE_DEF_CHANGED, “Table definition has changed, please retry transaction”. A consistent read means that InnoDB uses multi-versioning to present to a query a snapshot of the database at a ...