juju 1.17.0 + mysql / HP > 2G

[Curtis Hovey-Canonical]

I think I have sussed the HP mysql errors that have plagues the 1.17.0
development cycle.

I and the CI use machines with 2G memory. This is about as small as
anyone will use mysql for. Juju's memory usage has changed quite a
bit. We have seen the mysql state errors change from rare or very
common.

So I think https://bugs.launchpad.net/juju-core/+bug/1255242
(upgrade-juju and bootstrap on HP cloud broken in devel) is really
about mysql + juju.

For now, I have changed CI to use more RAM. If the next few CI runs
don't see the error, I will consider this issue a mysql problem.
However we might have a user problem because "juju deploy mysql" is
less likely to "just work" on HP cloud.

-- 
Curtis Hovey
Canonical Cloud Development and Operations
http://launchpad.net/~sinzui