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I have a Master to Master replication set up between two MySQL 5.0
My requirement is that before starting my application I have to ensure that the database are identical I would like to confirm that the “seconds_behind_master” of the “show slave status” command being at 0 seconds is enough to consider the 2 databases being synchronized ?
http://dev.mysql.com/doc/refman/5.0/en/show-slave-status.html
Thank you
No, that is not sufficient to guarantee that the databases are identical, just that the slave has run all statements from the master’s binary log. You could update or delete large chunks of data on the slave database and still have seconds behind master = 0, but the slave would certainly not be identical to the master.
You should use a tool like Percona’s pt-table-checksum if you really want to verify that the databases are identical.