Open Stack

And just when the patch was only missing a +A, another bug slipped in!
The nova patch to fix it is available at [1]

And while we're there, it won't be a bad idea to also push the neutron full
job, as non-voting, into the integrated gate [2]

Thanks in advance,
(especially to the nova and infra cores who'll review these patches!)
Salvatore

[1] https://review.openstack.org/#/c/113554/
[2] https://review.openstack.org/#/c/113562/


On 7 August 2014 17:51, Salvatore Orlando <sorlando at nicira.com> wrote:

> Thanks Armando,
>
> The fix for the bug you pointed out was the reason of the failure we've
> been seeing.
> The follow-up patch merged and I've removed the wip status from the patch
> for the full job [1]
>
> Salvatore
>
> [1] https://review.openstack.org/#/c/88289/
>
>
> On 7 August 2014 16:50, Armando M. <armamig at gmail.com> wrote:
>
>> Hi Salvatore,
>>
>> I did notice the issue and I flagged this bug report:
>>
>> https://bugs.launchpad.net/nova/+bug/1352141
>>
>> I'll follow up.
>>
>> Cheers,
>> Armando
>>
>>
>> On 7 August 2014 01:34, Salvatore Orlando <sorlando at nicira.com> wrote:
>>
>>> I had to put the patch back on WIP because yesterday a bug causing a
>>> 100% failure rate slipped in.
>>> It should be an easy fix, and I'm already working on it.
>>> Situations like this, exemplified by [1] are a bit frustrating for all
>>> the people working on improving neutron quality.
>>> Now, if you allow me a little rant, as Neutron is receiving a lot of
>>> attention for all the ongoing discussion regarding this group policy stuff,
>>> would it be possible for us to receive a bit of attention to ensure both
>>> the full job and the grenade one are switched to voting before the juno-3
>>> review crunch.
>>>
>>> We've already had the attention of the QA team, it would probably good
>>> if we could get the attention of the infra core team to ensure:
>>> 1) the jobs are also deemed by them stable enough to be switched to
>>> voting
>>> 2) the relevant patches for openstack-infra/config are reviewed
>>>
>>> Regards,
>>> Salvatore
>>>
>>> [1]
>>> http://logstash.openstack.org/#eyJzZWFyY2giOiJtZXNzYWdlOlwie3UnbWVzc2FnZSc6IHUnRmxvYXRpbmcgaXAgcG9vbCBub3QgZm91bmQuJywgdSdjb2RlJzogNDAwfVwiIEFORCBidWlsZF9uYW1lOlwiY2hlY2stdGVtcGVzdC1kc3ZtLW5ldXRyb24tZnVsbFwiIEFORCBidWlsZF9icmFuY2g6XCJtYXN0ZXJcIiIsImZpZWxkcyI6W10sIm9mZnNldCI6MCwidGltZWZyYW1lIjoiMTcyODAwIiwiZ3JhcGhtb2RlIjoiY291bnQiLCJ0aW1lIjp7InVzZXJfaW50ZXJ2YWwiOjB9LCJzdGFtcCI6MTQwNzQwMDExMDIwNywibW9kZSI6IiIsImFuYWx5emVfZmllbGQiOiIifQ==
>>>
>>>
>>> On 23 July 2014 14:59, Matthew Treinish <mtreinish at kortar.org> wrote:
>>>
>>>> On Wed, Jul 23, 2014 at 02:40:02PM +0200, Salvatore Orlando wrote:
>>>> > Here I am again bothering you with the state of the full job for
>>>> Neutron.
>>>> >
>>>> > The patch for fixing an issue in nova's server external events
>>>> extension
>>>> > merged yesterday [1]
>>>> > We do not have yet enough data points to make a reliable assessment,
>>>> but of
>>>> > out 37 runs since the patch merged, we had "only" 5 failures, which
>>>> puts
>>>> > the failure rate at about 13%
>>>> >
>>>> > This is ugly compared with the current failure rate of the smoketest
>>>> (3%).
>>>> > However, I think it is good enough to start making the full job
>>>> voting at
>>>> > least for neutron patches.
>>>> > Once we'll be able to bring down failure rate to anything around 5%,
>>>> we can
>>>> > then enable the job everywhere.
>>>>
>>>> I think that sounds like a good plan. I'm also curious how the failure
>>>> rates
>>>> compare to the other non-neutron jobs, that might be a useful
>>>> comparison too
>>>> for deciding when to flip the switch everywhere.
>>>>
>>>> >
>>>> > As much as I hate asymmetric gating, I think this is a good
>>>> compromise for
>>>> > avoiding developers working on other projects are badly affected by
>>>> the
>>>> > higher failure rate in the neutron full job.
>>>>
>>>> So we discussed this during the project meeting a couple of weeks ago
>>>> [3] and
>>>> there was a general agreement that doing it asymmetrically at first
>>>> would be
>>>> better. Everyone should be wary of the potential harms with doing it
>>>> asymmetrically and I think priority will be given to fixing issues that
>>>> block
>>>> the neutron gate should they arise.
>>>>
>>>> > I will therefore resume work on [2] and remove the WIP status as soon
>>>> as I
>>>> > can confirm a failure rate below 15% with more data points.
>>>> >
>>>>
>>>> Thanks for keeping on top of this Salvatore. It'll be good to finally
>>>> be at
>>>> least partially gating with a parallel job.
>>>>
>>>> -Matt Treinish
>>>>
>>>> >
>>>> > [1] https://review.openstack.org/#/c/103865/
>>>> > [2] https://review.openstack.org/#/c/88289/
>>>> [3]
>>>> http://eavesdrop.openstack.org/meetings/project/2014/project.2014-07-08-21.03.log.html#l-28
>>>>
>>>> >
>>>> >
>>>> > On 10 July 2014 11:49, Salvatore Orlando <sorlando at nicira.com> wrote:
>>>> >
>>>> > >
>>>> > >
>>>> > >
>>>> > > On 10 July 2014 11:27, Ihar Hrachyshka <ihrachys at redhat.com> wrote:
>>>> > >
>>>> > >> -----BEGIN PGP SIGNED MESSAGE-----
>>>> > >> Hash: SHA512
>>>> > >>
>>>> > >> On 10/07/14 11:07, Salvatore Orlando wrote:
>>>> > >> > The patch for bug 1329564 [1] merged about 11 hours ago. From [2]
>>>> > >> > it seems there has been an improvement on the failure rate, which
>>>> > >> > seem to have dropped to 25% from over 40%. Still, since the patch
>>>> > >> > merged there have been 11 failures already in the full job out of
>>>> > >> > 42 jobs executed in total. Of these 11 failures: - 3 were due to
>>>> > >> > problems in the patches being tested - 1 had the same root cause
>>>> as
>>>> > >> > bug 1329564. Indeed the related job started before the patch
>>>> merged
>>>> > >> > but finished after. So this failure "doesn't count". - 1 was for
>>>> an
>>>> > >> > issue introduced about a week ago which actually causing a lot of
>>>> > >> > failures in the full job [3]. Fix should be easy for it; however
>>>> > >> > given the nature of the test we might even skip it while it's
>>>> > >> > fixed. - 3 were for bug 1333654 [4]; for this bug discussion is
>>>> > >> > going on on gerrit regarding the most suitable approach. - 3 were
>>>> > >> > for lock wait timeout errors. Several people in the community are
>>>> > >> > already working on them. I hope this will raise the profile of
>>>> this
>>>> > >> > issue (maybe some might think it's just a corner case as it
>>>> rarely
>>>> > >> > causes failures in smoke jobs, whereas the truth is that error
>>>> > >> > occurs but it does not cause job failure because the jobs isn't
>>>> > >> > parallel).
>>>> > >>
>>>> > >> Can you give directions on where to find those lock timeout
>>>> failures?
>>>> > >> I'd like to check logs to see whether they have the same nature as
>>>> > >> most other failures (e.g. improper yield under transaction).
>>>> > >>
>>>> > >
>>>> > > This logstash query will give you all occurences of lock wait
>>>> timeout
>>>> > > issues: message:"(OperationalError) (1205, 'Lock wait timeout
>>>> exceeded; try
>>>> > > restarting transaction')" AND tags:"screen-q-svc.txt"
>>>> > >
>>>> > > The fact that in most cases the build succeeds anyway is misleading,
>>>> > > because in many cases these errors occur in RPC handling between
>>>> agents and
>>>> > > servers, and therefore are not detected by tempest. The neutron
>>>> full job,
>>>> > > which is parallel, increases their occurrence because of
>>>> parallelism - and
>>>> > > since API request too occur concurrently it also yields a higher
>>>> tempest
>>>> > > build failure rate.
>>>> > >
>>>> > > However, as I argued in the past the "lock wait timeout" error
>>>> should
>>>> > > always be treated as an error condition.
>>>> > > Eugene has already classified lock wait timeout failures and filed
>>>> bugs
>>>> > > for them a few weeks ago.
>>>> > >
>>>> > >
>>>> > >> >
>>>> > >> > Summarizing, I think time is not yet ripe to enable the full job;
>>>> > >> > once bug 1333654 is fixed, we should go for it. AFAIK there is no
>>>> > >> > way for working around it in gate tests other than disabling
>>>> > >> > nova/neutron event reporting, which I guess we don't want to do.
>>>> > >> >
>>>> > >> > Salvatore
>>>> > >> >
>>>> > >> > [1] https://review.openstack.org/#/c/105239 [2]
>>>> > >> >
>>>> > >>
>>>> http://logstash.openstack.org/#eyJzZWFyY2giOiJidWlsZF9zdGF0dXM6RkFJTFVSRSBBTkQgbWVzc2FnZTpcIkZpbmlzaGVkOiBGQUlMVVJFXCIgQU5EIGJ1aWxkX25hbWU6XCJjaGVjay10ZW1wZXN0LWRzdm0tbmV1dHJvbi1mdWxsXCIgQU5EIGJ1aWxkX2JyYW5jaDpcIm1hc3RlclwiIiwiZmllbGRzIjpbXSwib2Zmc2V0IjowLCJ0aW1lZnJhbWUiOiIxNzI4MDAiLCJncmFwaG1vZGUiOiJjb3VudCIsInRpbWUiOnsiZnJvbSI6IjIwMTQtMDctMTBUMDA6MjQ6NTcrMDA6MDAiLCJ0byI6IjIwMTQtMDctMTBUMDg6MjQ6NTMrMDA6MDAiLCJ1c2VyX2ludGVydmFsIjoiMCJ9LCJzdGFtcCI6MTQwNDk4MjU2MjM2OCwibW9kZSI6IiIsImFuYWx5emVfZmllbGQiOiIifQ==
>>>> > >> >
>>>> > >> >
>>>> > >> [3]
>>>> > >> >
>>>> > >>
>>>> http://logstash.openstack.org/#eyJzZWFyY2giOiJtZXNzYWdlOlwiSFRUUEJhZFJlcXVlc3Q6IFVucmVjb2duaXplZCBhdHRyaWJ1dGUocykgJ21lbWJlciwgdmlwLCBwb29sLCBoZWFsdGhfbW9uaXRvcidcIiBBTkQgdGFnczpcInNjcmVlbi1xLXN2Yy50eHRcIiIsImZpZWxkcyI6W10sIm9mZnNldCI6MCwidGltZWZyYW1lIjoiY3VzdG9tIiwiZ3JhcGhtb2RlIjoiY291bnQiLCJ0aW1lIjp7ImZyb20iOiIyMDE0LTA3LTAxVDA4OjU5OjAxKzAwOjAwIiwidG8iOiIyMDE0LTA3LTEwVDA4OjU5OjAxKzAwOjAwIiwidXNlcl9pbnRlcnZhbCI6IjAifSwic3RhbXAiOjE0MDQ5ODI3OTc3ODAsIm1vZGUiOiIiLCJhbmFseXplX2ZpZWxkIjoiIn0=
>>>> > >> >
>>>> > >> >
>>>> > >> [4] https://bugs.launchpad.net/nova/+bug/1333654
>>>> > >> >
>>>> > >> >
>>>> > >> > On 2 July 2014 17:57, Salvatore Orlando <sorlando at nicira.com>
>>>> > >> > wrote:
>>>> > >> >
>>>> > >> >> Hi again,
>>>> > >> >>
>>>> > >> >> From my analysis most of the failures affecting the neutron full
>>>> > >> >> job are because of bugs [1] and [2] for which patch [3] and [4]
>>>> > >> >> have been proposed. Both patches address the nova side of the
>>>> > >> >> neutron/nova notification system for vif plugging. It is worth
>>>> > >> >> noting that these bugs did manifest only in the neutron full job
>>>> > >> >> not because of its "full" nature, but because of its "parallel"
>>>> > >> >> nature.
>>>> > >> >>
>>>> > >> >> Openstackers with a good memory will probably remember we fixed
>>>> > >> >> the parallel job back in January, before the massive "kernel
>>>> bug"
>>>> > >> >> gate outage [5]. However, since parallel testing was
>>>> > >> >> unfortunately never enabled on the smoke job we run on the gate,
>>>> > >> >> we allowed new bugs to slip in. For this reason I would
>>>> recommend
>>>> > >> >> the following: - once patches [3] and [4] have been reviewed and
>>>> > >> >> merge, re-assess neutron full job failure rate over a period of
>>>> > >> >> 48 hours (72 if the period includes at least 24 hours within a
>>>> > >> >> weekend - GMT time) - turn neutron full job to voting if the
>>>> > >> >> previous step reveals a failure rate below 10%, otherwise go
>>>> back
>>>> > >> >> to the drawing board
>>>> > >> >>
>>>> > >> >> In my opinion whether the full job should be enabled in an
>>>> > >> >> asymmetric fashion or not should be a decision for the QA and
>>>> > >> >> Infra teams. Once the full job is made voting there will
>>>> > >> >> inevitably be a higher failure rate. An asymmetric gate will not
>>>> > >> >> cause backlogs on other projects, so less angry people, but as
>>>> > >> >> Matt said it will still allow other bugs to slip in. Personally
>>>> > >> >> I'm ok either way.
>>>> > >> >>
>>>> > >> >> The reason why we're expecting a higher failure rate on the full
>>>> > >> >> job is that we have already observed that some "known" bugs,
>>>> such
>>>> > >> >> as the various lock timeout issues affecting neutron tend to
>>>> show
>>>> > >> >> with a higher frequency on the full job because of its parallel
>>>> > >> >> nature.
>>>> > >> >>
>>>> > >> >> Salvatore
>>>> > >> >>
>>>> > >> >> [1] https://launchpad.net/bugs/1329546 [2]
>>>> > >> >> https://launchpad.net/bugs/1333654 [3]
>>>> > >> >> https://review.openstack.org/#/c/99182/ [4]
>>>> > >> >> https://review.openstack.org/#/c/103865/ [5]
>>>> > >> >> https://bugs.launchpad.net/neutron/+bug/1273386
>>>> > >> >>
>>>> > >> >>
>>>> > >> >>
>>>> > >> >>
>>>> > >> >> On 25 June 2014 23:38, Matthew Treinish <mtreinish at kortar.org>
>>>> > >> >> wrote:
>>>> > >> >>
>>>> > >> >>> On Tue, Jun 24, 2014 at 02:14:16PM +0200, Salvatore Orlando
>>>> > >> >>> wrote:
>>>> > >> >>>> There is a long standing patch [1] for enabling the neutron
>>>> > >> >>>> full job. Little before the Icehouse release date, when we
>>>> > >> >>>> first pushed this, the neutron full job had a failure rate of
>>>> > >> >>>> less than 10%. However, since has come by, and perceived
>>>> > >> >>>> failure rates were higher, we ran again this analysis.
>>>> > >> >>>
>>>> > >> >>> So I'm not exactly a fan of having the gates be asymmetrical.
>>>> > >> >>> It's very easy for breaks to slip in blocking the neutron gate
>>>> > >> >>> if it's not voting everywhere. Especially because I think most
>>>> > >> >>> people have been trained to ignore the full job because it's
>>>> > >> >>> been nonvoting for so long. Is there a particular reason we
>>>> > >> >>> just don't switch everything all at once? I think having a
>>>> > >> >>> little bit of friction everywhere during the migration is fine.
>>>> > >> >>> Especially if we do it way before a milestone. (as opposed to
>>>> > >> >>> the original parallel switch which was right before H-3)
>>>> > >> >>>
>>>> > >> >>>>
>>>> > >> >>>> Here are the findings in a nutshell. 1) If we were to enable
>>>> > >> >>>> the job today we might expect about a 3-fold increase in
>>>> > >> >>>> neutron job failures when compared with the smoke test.
>>>> > >> >>> This is
>>>> > >> >>>> unfortunately not acceptable and we therefore need to
>>>> > >> >>>> identify and fix
>>>> > >> >>> the
>>>> > >> >>>> issues causing the additional failure rate. 2) However this
>>>> > >> >>>> also puts us in a position where if we wait until the failure
>>>> > >> >>>> rate drops under a given threshold we might end up chasing a
>>>> > >> >>> moving
>>>> > >> >>>> target as new issues might be introduced at any time since
>>>> > >> >>>> the job is
>>>> > >> >>> not
>>>> > >> >>>> voting. 3) When it comes to evaluating failure rates for a
>>>> > >> >>>> non voting job,
>>>> > >> >>> taking
>>>> > >> >>>> the rough numbers does not mean anything, as that will take
>>>> > >> >>>> in account patches 'in progress' which end up failing the
>>>> > >> >>>> tests because of
>>>> > >> >>> problems in
>>>> > >> >>>> the patch themselves.
>>>> > >> >>>>
>>>> > >> >>>> Well, that was pretty much a lot for a "nutshell"; however if
>>>> > >> >>>> you're not yet bored to death please go on reading.
>>>> > >> >>>>
>>>> > >> >>>> The data in this post are a bit skewed because of a rise in
>>>> > >> >>>> neutron job failures in the past 36 hours. However, this rise
>>>> > >> >>>> affects both the full
>>>> > >> >>> and
>>>> > >> >>>> the smoke job so it does not invalidate what we say here. The
>>>> > >> >>>> results
>>>> > >> >>> shown
>>>> > >> >>>> below are representative of the gate status 12 hours ago.
>>>> > >> >>>>
>>>> > >> >>>> - Neutron smoke job failure rates (all queues) 24 hours:
>>>> > >> >>>> 22.4% 48 hours: 19.3% 7 days: 8.96% - Neutron smoke job
>>>> > >> >>>> failure rates (gate queue only): 24 hours: 10.41% 48 hours:
>>>> > >> >>>> 10.20% 7 days: 3.53% - Neutron full job failure rate (check
>>>> > >> >>>> queue only as it's non voting): 24 hours: 31.54% 48 hours:
>>>> > >> >>>> 28.87% 7 days: 25.73%
>>>> > >> >>>>
>>>> > >> >>>> Check/Gate Ratio between neutron smoke failures 24 hours:
>>>> > >> >>>> 2.15 48 hours: 1.89 7 days: 2.53
>>>> > >> >>>>
>>>> > >> >>>> Estimated job failure rate for neutron full job if it were to
>>>> > >> >>>> run in the gate: 24 hours: 14.67% 48 hours: 15.27% 7 days:
>>>> > >> >>>> 10.16%
>>>> > >> >>>>
>>>> > >> >>>> The numbers are therefore not terrible, but definitely not
>>>> > >> >>>> good enough; looking at the last 7 days the full job will
>>>> > >> >>>> have a failure rate about 3 times higher than the smoke job.
>>>> > >> >>>>
>>>> > >> >>>> We then took, as it's usual for us when we do this kind of
>>>> > >> >>>> evaluation, a window with a reasonable number of failures (41
>>>> > >> >>>> in our case), and
>>>> > >> >>> analysed
>>>> > >> >>>> them in detail.
>>>> > >> >>>>
>>>> > >> >>>> Of these 41 failures 17 were excluded because of infra
>>>> > >> >>>> problems, patches 'in progress', or other transient failures;
>>>> > >> >>>> considering that over the
>>>> > >> >>> same
>>>> > >> >>>> period of time 160 full job runs succeeded this would leave
>>>> > >> >>>> us with 24 failures on 184 run, and therefore a failure rate
>>>> > >> >>>> of 13.04%, which not
>>>> > >> >>> far
>>>> > >> >>>> from the estimate.
>>>> > >> >>>>
>>>> > >> >>>> Let's consider now these 24 'real' falures: A)  2 were for
>>>> > >> >>>> the SSH timeout (8.33% of failures, 1.08% of total full
>>>> > >> >>> job
>>>> > >> >>>> runs). These specific failure is being analyzed to see if a
>>>> > >> >>>> specific fingerprint can be found B) 2  (8.33% of failures,
>>>> > >> >>>> 1.08% of total full job runs) were for a
>>>> > >> >>> failure
>>>> > >> >>>> in test load balancer basic, which is actually a test design
>>>> > >> >>>> issue and
>>>> > >> >>> is
>>>> > >> >>>> already being addressed [2] C) 7 (29.16% of failures, 3.81%
>>>> > >> >>>> of total full job runs) were for an
>>>> > >> >>> issue
>>>> > >> >>>> while resizing a server, which has been already spotted and
>>>> > >> >>>> has a bug in progress [3] D) 5 (20.83% of failures, 2.72% of
>>>> > >> >>>> total full job runs) manifested as a failure in
>>>> > >> >>>> test_server_address; however the actual root cause was being
>>>> > >> >>>> masked by [4]. A bug has been filed [5]; this is the most
>>>> > >> >>>> worrying one
>>>> > >> >>> in
>>>> > >> >>>> my opinion as there are many cases where the fault happens
>>>> > >> >>>> but does not trigger a failure because of the way tempest
>>>> > >> >>>> tests are designed. E) 6 are because of our friend lock wait
>>>> > >> >>>> timeout. This was initially
>>>> > >> >>> filed
>>>> > >> >>>> as [6] but since then we've closed it to file more detailed
>>>> > >> >>>> bug reports
>>>> > >> >>> as
>>>> > >> >>>> the lock wait timeout can manifest in various places; Eugene
>>>> > >> >>>> is leading
>>>> > >> >>> the
>>>> > >> >>>> effort on this problem with Kevin B.
>>>> > >> >>>>
>>>> > >> >>>>
>>>> > >> >>>> Summarizing the only failure modes specific to the full job
>>>> > >> >>>> seem to be
>>>> > >> >>> C &
>>>> > >> >>>> D. If we were able to fix those we should reasonably expect a
>>>> > >> >>>> failure
>>>> > >> >>> rate
>>>> > >> >>>> of about 6.5%. That's still almost twice as the smoke job,
>>>> > >> >>>> but I deem it acceptable for two reasons: 1- by voting, we
>>>> > >> >>>> will avoid new bugs affecting the full job from being
>>>> > >> >>>> introduced. it is worth reminding people that any bug
>>>> > >> >>>> affecting the full job is likely to affect production
>>>> > >> >>>> environments
>>>> > >> >>>
>>>> > >> >>> +1, this is a very good point.
>>>> > >> >>>
>>>> > >> >>>> 2- patches failing in the gate will spur neutron developers
>>>> > >> >>>> to quickly
>>>> > >> >>> find
>>>> > >> >>>> a fix. Patches failing a non voting job will cause some
>>>> > >> >>>> neutron core
>>>> > >> >>> team
>>>> > >> >>>> members to write long and boring posts to the mailing list.
>>>> > >> >>>>
>>>> > >> >>>
>>>> > >> >>> Well, you can always hope. :) But, in my experience the error
>>>> > >> >>> is often fixed quickly but the lesson isn't learned, so it will
>>>> > >> >>> just happen again. That's why I think we should just grit our
>>>> > >> >>> teeth and turn it on everywhere.
>>>> > >> >>>
>>>> > >> >>>> Salvatore
>>>> > >> >>>>
>>>> > >> >>>>
>>>> > >> >>>>
>>>> > >> >>>>
>>>> > >> >>>> [1] https://review.openstack.org/#/c/88289/ [2]
>>>> > >> >>>> https://review.openstack.org/#/c/98065/ [3]
>>>> > >> >>>> https://bugs.launchpad.net/nova/+bug/1329546 [4]
>>>> > >> >>>> https://bugs.launchpad.net/tempest/+bug/1332414 [5]
>>>> > >> >>>> https://bugs.launchpad.net/nova/+bug/1333654 [5]
>>>> > >> >>>> https://bugs.launchpad.net/nova/+bug/1283522
>>>> > >> >>>
>>>> > >> >>> Very cool, thanks for the update Salvatore. I'm very excited to
>>>> > >> >>> get this voting.
>>>> > >> >>>
>>>> > >> >>>
>>>> > >> >>> -Matt Treinish
>>>> > >> >>>
>>>> > >> >>> _______________________________________________ OpenStack-dev
>>>> > >> >>> mailing list OpenStack-dev at lists.openstack.org
>>>> > >> >>>
>>>> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
>>>> > >> >>>
>>>> > >> >>>
>>>> > >> >>
>>>> > >> >
>>>> > >> >>>
>>>> > >> >
>>>> > >> >
>>>> > >> > _______________________________________________ OpenStack-dev
>>>> > >> > mailing list OpenStack-dev at lists.openstack.org
>>>> > >> >
>>>> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
>>>> > >> >
>>>> > >> -----BEGIN PGP SIGNATURE-----
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>>>> > >> Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/
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>>>> > >> -----END PGP SIGNATURE-----
>>>> > >>
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>>>> > >>
>>>> > >
>>>> > >
>>>>
>>>> > _______________________________________________
>>>> > OpenStack-dev mailing list
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