Performance Schema Replication Tables •Fields that provide information about command-line filtering options is not preserved: Replicate_Do_DB Replicate_Ignore_DB Replicate_Do_Table Replicate_Ignore_Table Replicate_Wild_Do_Table Replicate_Wild_Ignore_Table •The  Replica_IO_State  and  Replica_SQL_Running_State  fields are not preserved. If needed, these values can be obtained from the process list by using the  THREAD_ID  column of the appropriate replication table and joining it with the  ID  column in the  INFORMATION_SCHEMA PROCESSLIST  table to select the  STATE  column of the latter table. •The  Executed_Gtid_Set  field can show a large set with a great deal of text. Instead, the Performance Schema tables show GTIDs of transactions that are currently being applied by the replica. Alternatively, the set of executed GTIDs can be obtained from the value of the  gtid_executed  system variable. •The  Seconds_Behind_Master  and  Relay_Log_Space  fields are in to-be-decided status and are not preserved. Replication Channels 27.12.11.1 The replication_connection_configuration Table The first column of the replication Performance Schema tables is  CHANNEL_NAME . This enables the tables to be viewed per replication channel. In a non-multisource replication setup there is a single default replication channel. When you are using multiple replication channels on a replica, you can filter the tables per replication channel to monitor a specific replication channel. See Section 17.2.2, “Replication Channels”  and Section 17.1.5.8, “Monitoring Multi-Source Replication”  for more information. 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 (from MySQL 8.0.23) or  CHANGE MASTER TO  statement (before MySQL 8.0.23). Compared to the  replication_connection_status  table, replication_connection_configuration  changes less frequently. It contains values that define how the replica connects to the source and that remain constant during the connection, whereas replication_connection_status  contains values that change during the connection. The  replication_connection_configuration  table has the following columns. The column descriptions indicate the corresponding  CHANGE REPLICATION SOURCE TO  |  CHANGE MASTER TO options from which the column values are taken, and the table given later in this section shows the correspondence between  replication_connection_configuration  columns and  SHOW REPLICA | SLAVE STATUS  columns. The replication channel which this row is displaying. There is always a default replication channel, and more replication channels can be added. See Section 17.2.2, “Replication Channels”  for more information. ( CHANGE REPLICATION SOURCE TO  option:  FOR CHANNEL ,  CHANGE MASTER TO  option: FOR CHANNEL ) The host name of the source that the replica is connected to. ( CHANGE REPLICATION SOURCE TO option:  SOURCE_HOST ,  CHANGE MASTER TO  option:  MASTER_HOST ) 5000 • CHANNEL_NAME • HOST • PORT