I am not a DBA, but I am interested in knowing how replication monitoring is done on MySQL severs.

In order to know if a slave is in sync with its master, one would typically check `Seconds_Behind_Master`, `Slave_SQL_Running`, `Slave_IO_Running`. 

There are tools available like `mk-table-checksum` to verify replication integrity. 

My question is, how else would a DBA like to monitor replication?