Open Stack

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?

Doug