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https://dev.mysql.com/doc/refman/8.0/en/group-replication-connection-security.html
Group Replication Requirements For The MySQL Communication Stack The network address configured by the group_replication_local_address system variable for each group member must be set to one of the IP addresses and ports that MySQL Server is ...
https://dev.mysql.com/doc/refman/8.0/en/replication-howto-masterbaseconfig.html
Note The following options also have an impact on the source: For the greatest possible durability and consistency in a replication setup using InnoDB with transactions, you should use innodb_flush_log_at_trx_commit=1 and sync_binlog=1 in the ... To ...Otherwise, a server restart is not needed when you change the server ID, unless you make other configuration changes that require ...
https://dev.mysql.com/doc/refman/8.0/en/json-attribute-functions.html
An error occurs if the argument is not a valid JSON document. An error occurs if the json_doc argument is not a valid JSON document or the path argument is not a valid path expression. Prior to MySQL 8.0.26, an error is also raised if the path ...An ...
https://dev.mysql.com/doc/refman/8.0/en/repair-table-optimization.html
The free space must be available in the file system containing the original table files. Also, in addition to setting memory-allocation variables, increasing the myisam_max_sort_file_size system variable increases the likelihood that the repair uses ... REPAIR TABLE for MyISAM tables is similar to using myisamchk for repair operations, and some of the same performance optimizations apply: myisamchk has variables that control memory ...
https://dev.mysql.com/doc/refman/8.0/en/stored-objects-security.html
Additionally, to set a stored object DEFINER attribute to an account that has the SYSTEM_USER privilege, you must have the SYSTEM_USER privilege. The invoker must have appropriate privileges to reference the object (for example, EXECUTE to call a ...
https://dev.mysql.com/doc/refman/8.0/en/group-replication-adding-instances.html
At this point, the group has one member in it, server s1, which has some data in it. 20.2.1.6.1 Adding a Second Instance In order to add a second instance, server s2, first create the configuration file for it. If you did not have binary logging ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-ndbinfo-pgman-time-track-stats.html
This table provides information regarding the latency of disk operations for NDB Cluster Disk Data tablespaces. The size of the page read to or written from a Disk Data tablespace is always 32 KB. Log wait latency (log_waits column) is the length ...
https://dev.mysql.com/doc/refman/8.0/en/faqs-cjk.html
Make sure that the database is actually using the desired character set. Why do I get Incorrect string value error messages? To see the problem, create a table with one Unicode (ucs2) column and one Chinese (gb2312) column. A warning occurs rather ... This set of Frequently Asked Questions derives from the experience of MySQL's Support and Development groups in handling many inquiries about CJK (Chinese-Japanese-Korean) ...
https://dev.mysql.com/doc/refman/8.0/en/charset-collation-information-schema.html
However, for values that correspond to objects that are represented in the file system, such as databases and tables, searches in INFORMATION_SCHEMA string columns can be case-sensitive or case-insensitive, depending on the characteristics of the ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-instrument-filtering.html
The setup_instruments table lists the available instruments: mysql> SELECT NAME, ENABLED, TIMED FROM performance_schema.setup_instruments; +---------------------------------------------------+---------+-------+ | NAME | ENABLED | TIMED | ...| ...