The RESET
REPLICA
statement can be used to reset a multi-source
replica. By default, if you use the
RESET
REPLICA
statement on a multi-source replica all channels
are reset. Optionally, use the FOR CHANNEL
clause to reset only
a specific channel.
channel
To reset all currently configured replication channels:
mysql> RESET SLAVE; Or from MySQL 8.0.22: mysql> RESET REPLICA;
To reset only a named channel, use a
FOR CHANNEL
clause:channel
mysql> RESET SLAVE FOR CHANNEL "source_1"; Or from MySQL 8.0.22: mysql> RESET REPLICA FOR CHANNEL "source_1";
For GTID-based replication, note that
RESET
REPLICA
has no effect on the replica's GTID execution
history. If you want to clear this, issue
RESET MASTER
on the replica.
RESET
REPLICA
makes the replica forget its replication
position, and clears the relay log, but it does not change any
replication connection parameters (such as the source host name)
or replication filters. If you want to remove these for a channel,
issue RESET REPLICA
ALL
.
For the full syntax of the RESET REPLICA
command and other available options, see
Section 13.4.2.4, “RESET REPLICA Statement”.