Open Stack

On Wed, Feb 17, 2016 at 5:55 AM, Sean Dague <sean at dague.net> wrote:

> On 02/17/2016 08:42 AM, Doug Hellmann wrote:
> > Excerpts from Victor Stinner's message of 2016-02-17 14:14:18 +0100:
> >> Le 17/02/2016 13:43, Henry Gessau a écrit :
> >>> And it looks like eventlet 0.18.3 breaks neutron:
> >>> https://bugs.launchpad.net/neutron/+bug/1546506
> >>
> >> 2 releases, 2 regressions in OpenStack. Should we cap eventlet version?
> >> The requirement bot can produce patches to update eventlet, patches
> >> which would run integration tests using Nova, Keystone, Neutron on the
> >> new eventlet version.
> >>
> >> eventlet 0.18.2 broke OpenStack Keystone and OpenStack Nova
> >> https://github.com/eventlet/eventlet/issues/296
> >> https://github.com/eventlet/eventlet/issues/299
> >> https://review.openstack.org/#/c/278147/
> >> https://bugs.launchpad.net/nova/+bug/1544801
> >>
> >> eventlet 0.18.3 broke OpenStack Neutron
> >> https://github.com/eventlet/eventlet/issues/301
> >> https://bugs.launchpad.net/neutron/+bug/1546506
> >>
> >> FYI eventlet 0.18.0 broke WSGI servers:
> >> https://github.com/eventlet/eventlet/issues/295
> >>
> >> It was followed quickly by eventlet 0.18.2 to fix this issue.
> >>
> >> Sadly, it looks like bugfix releases of eventlet don't include a single
> >> bugfix, but include also other changes. For example, 0.18.3 fixed the
> >> bug #296 but introduced "wsgi: TCP_NODELAY enabled by default"
> optimization.
> >>
> >> IMHO the problem is not the release manager of eventlet, but more the
> >> lack of tests on eventlet, especially on OpenStack services.
> >>
> >> Current "Continious Delivery"-like with gates do detect bugs, yeah, but
> >> also block a lot of developers when the gates are broken. It doesn't
> >> seem trivial to investigate and fix eventlet issues.
> >>
> >> Victor
> >>
> >
> > Whether we cap or not, we should exclude the known broken versions.
> > It looks like getting back to a good version will also require
> > lowering the minimum version we support, since we have >=0.18.2
> > now.
> >
> > What was the last version of eventlet known to work?
>
> 0.18.2 works. On the Nova side we had a failure around unit tests which
> was quite synthetic that we fixed. I don' know what the keystone issue
> turned out to be.
>

I believe the keystone issue was a test specific issue, not a runtime
issue. We disabled the test.
--Morgan
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