Shopify/lhm — pull request #1 by camilo (2014-01-15 14:54:55+00:00)
Title: Sets the LHM's session lock wait timeout variables

# Problem

It is possible for the atomic switch to fail when another session has acquired the meta data lock

# Solution

This is part 1 of the solution, here we are forcing the LHM's session variables to be n seconds less than the global,
the next iteration of this will make it so we retry on failure to acquire the lock.

@sroysen @arthurnn