Where are gone the mysql replication metrics ? #22241

The replication metrics are still in the current MySQL collector; the documented chart names are mysql.slave_behind and mysql.slave_status.

For MariaDB 10.11, the collector path is:

SHOW ALL SLAVES STATUS;

because the source selects that query for MariaDB >= 10.2. It then maps:

• Seconds_Behind_Master / Seconds_Behind_Source -> seconds_behind_master
• Slave_SQL_Running / Replica_SQL_Running -> slave_sql_running
• Slave_IO_Running / Replica_IO_Running -> slave_io_running

So if both the Netdata UI chart and the Prometheus-exported metrics disappeared, I would first check the go.d collector log for:

error on collecting slave status

and run this as the same MariaDB user:

SHOW ALL SLAVES STATUS;

If that query returns no rows or errors for netdata, Netdata has nothing to populate for mysql.slave_behind / mysql.slave_status. The old Prometheus names were derived from those charts, so I would debug the collector query/permissions first rather than looking for a renamed Prometheus metric only.