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https://dev.mysql.com/doc/refman/9.7/en/performance-schema-replication-applier-status-table.html
This table shows the current general transaction execution status on the replica. The table provides information about general aspects of transaction applier status that are not specific to any thread involved. Thread-specific status information is ...
https://dev.mysql.com/doc/refman/9.7/en/performance-schema-replication-connection-configuration-table.html
This table shows the configuration parameters used by the replica for connecting to the source. Parameters stored in the table can be changed at runtime with the CHANGE REPLICATION SOURCE TO statement. It contains values that define how the replica ...
https://dev.mysql.com/doc/refman/9.7/en/performance-schema-setup-meters-table.html
This column can be modified DESCRIPTION: A string describing the meter.
https://dev.mysql.com/doc/refman/9.7/en/performance-schema-system-variables.html
The Performance Schema automatically sizes the values of several of its parameters at server startup if they are not set explicitly. Performance Schema system variables have the following meanings: performance_schema Command-Line Format ...
https://dev.mysql.com/doc/refman/9.7/en/processlist-access.html
The following discussion enumerates the sources of process information, the privileges required to see process information, and describes the content of process list entries. The other sources have negative performance consequences because they ...
https://dev.mysql.com/doc/refman/9.7/en/query-attributes.html
The most visible part of an SQL statement is the text of the statement. Clients can also define query attributes that apply to the next statement sent to the server for execution: Attributes are defined prior to sending the statement. Attributes ...
https://dev.mysql.com/doc/refman/9.7/en/replica-io-thread-states.html
The following list shows the most common states you see in the State column for a replication I/O (receiver) thread on a replica server. This state also appears in the Replica_IO_State column displayed by SHOW REPLICA STATUS, so you can get a good ...
https://dev.mysql.com/doc/refman/9.7/en/replication-features-shutdowns.html
It is safe to shut down a replication source server and restart it later. When a replica loses its connection to the source, the replica tries to reconnect immediately and retries periodically if that fails. This may be changed with the CHANGE ...
https://dev.mysql.com/doc/refman/9.7/en/replication-features-transaction-inconsistencies.html
Inconsistencies in the sequence of transactions that have been executed from the relay log can occur depending on your replication configuration. This section explains how to avoid inconsistencies and solve any problems they cause. A transaction ...
https://dev.mysql.com/doc/refman/9.7/en/replication-features-transactions.html
In MySQL 9.6 (and later), transactions that update both transactional tables and tables which are nontransactional or noncomposable are deprecated, and causes a deprecation warning to be written to both the client and the error log. In MySQL 9.6 ...