**Reported in Launchpad by Ceri WIlliams last update 04-09-2017 13:46:54
A number of the tools will write to a table, which in a replication scenario would require the slaves to contain the same table to avoid replication breakage (assuming no filters).
pt-table-checksum for example will use CREATE DATABASE IF NOT EXISTS and checks the slaves.
Please ensure that any of the tools that can write to a table also check that the schema exists and either completely fail to run (acceptable as safe) and give an error, or ensure that the schema and tables are created in a replication-safe manner.
The following shows those scripts that contain a CREATE TABLE compared against those that contain a CREATE DATABASE: