Open Stack

Doug Hellmann <doug at doughellmann.com> wrote:
> Excerpts from Morgan Fainberg's message of 2016-02-17 07:10:34 -0800:
>> 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
> 
> OK. Can someone from the neutron team verify that 0.18.2 works? If so,
> we can just exclude 0.18.3 and reset the constraint.

I can confirm that neutron works with 0.18.2 as far as we know.