MySQL 8.0 Reference Manual Including MySQL NDB Cluster 8.0

26.12.11.2 The replication_connection_status Table

This table shows the current status of the I/O thread that handles the slave server connection to the master server, information on the last transaction queued in the relay log, and information on the transaction currently being queued in the relay log.

Compared to the replication_connection_configuration table, replication_connection_status changes more frequently. It contains values that change during the connection, whereas replication_connection_configuration contains values which define how the slave connects to the master and that remain constant during the connection.

The replication_connection_status table has these columns:

When the Performance Schema is disabled, local timing information is not collected, so the fields showing the start and end timestamps for queued transactions are zero.

The replication_connection_status table has these indexes:

The following table shows the correspondence between replication_connection_status columns and SHOW SLAVE STATUS columns.

replication_connection_status Column SHOW SLAVE STATUS Column
SOURCE_UUID Master_UUID
THREAD_ID None
SERVICE_STATE Slave_IO_Running
RECEIVED_TRANSACTION_SET Retrieved_Gtid_Set
LAST_ERROR_NUMBER Last_IO_Errno
LAST_ERROR_MESSAGE Last_IO_Error
LAST_ERROR_TIMESTAMP Last_IO_Error_Timestamp