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https://dev.mysql.com/doc/refman/5.7/en/replica-logs-status.html
When you back up the replica's data or transfer a snapshot of its data to create a new replica, ensure that you include the mysql.slave_master_info and mysql.slave_relay_log_info tables containing the replication metadata repositories, or the ...By ... A replica server creates two replication metadata repositories, the connection metadata repository and the applier metadata ...
https://dev.mysql.com/doc/refman/5.7/en/optimizing-innodb-bulk-data-loading.html
COMMIT; The mysqldump option --opt creates dump files that are fast to import into an InnoDB table, even without wrapping them with the SET autocommit and COMMIT statements. If you have UNIQUE constraints on secondary keys, you can speed up table ...
https://dev.mysql.com/doc/refman/5.7/en/se-csv-repair.html
The CSV storage engine supports the CHECK TABLE and REPAIR TABLE statements to verify and, if possible, repair a damaged CSV table. When running the CHECK TABLE statement, the CSV file is checked for validity by looking for the correct field ...
https://dev.mysql.com/doc/refman/5.7/en/information-schema-connection-control-failed-login-attempts-table.html
This table provides information about the current number of consecutive failed connection attempts per account (user/host combination). Notes The CONNECTION_CONTROL_FAILED_LOGIN_ATTEMPTS plugin must be activated for this table to be available, and ...CONNECTION_CONTROL_FAILED_LOGIN_ATTEMPTS has these columns: USERHOST The user/host combination indicating an account that has failed connection attempts, in 'user_name'@'host_name' ...
https://dev.mysql.com/doc/refman/5.7/en/information-schema-connection-control-table-reference.html
Table 24.9 INFORMATION_SCHEMA Connection Control Tables Table Name Description CONNECTION_CONTROL_FAILED_LOGIN_ATTEMPTS Current number of consecutive failed connection attempts per account .
https://dev.mysql.com/doc/refman/5.7/en/information-schema-firewall-table-reference.html
Table 24.10 INFORMATION_SCHEMA Firewall Tables Table Name Description MYSQL_FIREWALL_USERS Firewall in-memory data for account profiles MYSQL_FIREWALL_WHITELIST Firewall in-memory data for account profile allowlists .
https://dev.mysql.com/doc/refman/5.7/en/information-schema-thread-pool-table-reference.html
Table 24.7 INFORMATION_SCHEMA Thread Pool Tables Table Name Description TP_THREAD_GROUP_STATE Thread pool thread group states TP_THREAD_GROUP_STATS Thread pool thread group statistics TP_THREAD_STATE Thread pool thread information .
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-ndbinfo-table-fragments.html
The table_fragments table provides information about the fragmentation, partitioning, distribution, and (internal) replication of NDB tables.
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-ndbinfo-table-replicas.html
The table_replicas table provides information about the copying, distribution, and checkpointing of NDB table fragments and fragment replicas.
https://dev.mysql.com/doc/refman/5.7/en/optimizing-innodb-many-tables.html
If you have configured non-persistent optimizer statistics (a non-default configuration), InnoDB computes index cardinality values for a table the first time that table is accessed after startup, instead of storing such values in the table. This ...