https://bugzilla.wikimedia.org/show_bug.cgi?id=57583

--- Comment #1 from Sam Reed (reedy) <[email protected]> ---
(In reply to Siebrand Mazeland from comment #0)
> Replication lag in production can cause weird issues that are very hard to
> debug. Now that we run automated integration tests, always having a
> replication lag in our deployment environment may surface issues that
> developers usually are not aware of, and help us create better code.

From bug 60058

(In reply to Erik Bernhardson from comment #1)
> setting the lag is fairly trivial,  percona makes a tool for it called
> pt-slave-delay.


That, and we need to have slaves setup first...

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