Verifying MySQL Replication Integrity with pt-table-checksum
Jun 17, 2013
Percona MySQL University Portland 2013
Daniel Nichter, Senior Developer, Database Tools Specialist
pt-table-checksum is a free tool which safely and efficiently verifies that data on MySQL replicas is identical to the master. Having inconsistent data on MySQL replicas is a well-known and rather common problem, yet many people who depend on MySQL replication never check for it. Moreover, inconsistent data can be an expensive problem, but the solution is free: pt-table-checksum.