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https://dev.mysql.com/doc/refman/5.7/en/getting-information.html
To find out which database is currently selected, use the DATABASE() function: mysql> SELECT DATABASE(); +------------+ | DATABASE() | +------------+ | menagerie | +------------+ If you have not yet selected any database, the result is NULL. What ...
https://dev.mysql.com/doc/refman/5.7/en/group-replication-enterprise-backup.html
The member has now been fully restored from the backup and functions as a regular member of the group. MySQL Enterprise Backup is a commercially-licensed backup utility for MySQL Server, available with MySQL Enterprise Edition. This section ...
https://dev.mysql.com/doc/refman/5.7/en/group-replication-fault-tolerance.html
This has direct impact on the number of failures the system can tolerate without compromising itself and its overall functionality. MySQL Group Replication builds on an implementation of the Paxos distributed algorithm to provide distributed ...
https://dev.mysql.com/doc/refman/5.7/en/group-replication-frequently-asked-questions.html
How does Group Replication use network addresses and hostnames? Group Replication uses network connections between members and therefore its functionality is directly impacted by how you configure hostnames and ports. What is the maximum number of ...
https://dev.mysql.com/doc/refman/5.7/en/group-replication-network-partitioning.html
In the scenario depicted above, if s3, s4 and s5 are not really unreachable but instead are online, they may have formed their own functional partition (they are 3 out of 5, hence they have the majority). The group needs to achieve consensus ...
https://dev.mysql.com/doc/refman/5.7/en/group-replication-server-states.html
Table 17.1 Server State Field Description Group Synchronized ONLINE The member is ready to serve as a fully functional group member, meaning that the client can connect and start executing transactions. There are various states that a server ...
https://dev.mysql.com/doc/refman/5.7/en/group-replication-tuning-recovery.html
In such cases, the donor switch over process has retry functionality, similar to that found in regular replication. Whenever a new member joins a replication group, it connects to a suitable donor and fetches the data that it has missed up until ...
https://dev.mysql.com/doc/refman/5.7/en/information-schema-general-table-reference.html
The following table summarizes INFORMATION_SCHEMA general tables. For greater detail, see the individual table descriptions. Table 24.2 INFORMATION_SCHEMA General Tables Table Name Description CHARACTER_SETS Available character sets ...
https://dev.mysql.com/doc/refman/5.7/en/information-schema-innodb-ft-being-deleted-table.html
For more information about InnoDB FULLTEXT search, see Section 14.6.2.4, “InnoDB Full-Text Indexes”, and Section 12.9, “Full-Text Search Functions”. The INNODB_FT_BEING_DELETED table provides a snapshot of the INNODB_FT_DELETED table; it is ...
https://dev.mysql.com/doc/refman/5.7/en/information-schema-innodb-ft-config-table.html
For more information about InnoDB FULLTEXT search, see Section 14.6.2.4, “InnoDB Full-Text Indexes”, and Section 12.9, “Full-Text Search Functions”. The INNODB_FT_CONFIG table provides metadata about the FULLTEXT index and associated ...