[openstack-dev] [oslo] Updates from the Summit

Davanum Srinivas davanum at gmail.com
Thu May 28 13:26:49 UTC 2015


Flavio,

yay! :)

-- dims

On Thu, May 28, 2015 at 9:24 AM, Flavio Percoco <flavio at redhat.com> wrote:
> On 28/05/15 07:34 -0400, Davanum Srinivas wrote:
>>
>> Flavio,
>>
>> PIka is an unknown quantity at the moment as none of us have touched
>> it. It was brought up by rabbitmq folks. So someone should look at it.
>> We don't have have enough info either to say we should use Pika by
>> itself or as a kombu driver. We may have to make that determination at
>> some point in the future if indeed pika is so much better. We don't
>> have anyone in the Kombu community either...and Pika will need to pass
>> the python34, licensing etc as well to be considered in addition to
>> the performance.
>
>
> I'm here from the Kombu community[0] (although I haven't done much
> lately).
>
> I think we should consider contributing back before dropping kombu if
> we ever get to the point where we think pika is better than whatever
> kombu is using.
>
> Flavio
>
> [0] https://github.com/orgs/celery/people
>
>>
>> thanks,
>> dims
>>
>> On Thu, May 28, 2015 at 7:08 AM, Flavio Percoco <flavio at redhat.com> wrote:
>>>
>>> On 27/05/15 10:24 -0700, Joshua Harlow wrote:
>>>>
>>>>
>>>> Thanks dims!
>>>>
>>>
>>> indeed, thanks.
>>>
>>> [snip]
>>>
>>>> Also for the pika one, I'd really like to understand why not kombu. I
>>>> don't know enough of the background, but from that session it looks like
>>>> we
>>>> need to do some comparative analysis (and imho get feedback from
>>>> asksol[1]
>>>> and others) before we go to deep down that rabbit hole (no jump to
>>>> another
>>>> 'greener pasture' imho should be done without all of this, to avoid
>>>> pissing
>>>> off the two [kombu, pika] communities).
>>>
>>>
>>>
>>> I couldn't attend this session but I'd also like to understand what's
>>> the idea behind using pika instead of kombu. FWIW, older versions of
>>> kombu used pika and it was moved away from it. One of the reasons was
>>> that pika was not stable enough at that time. This could've changed.
>>>
>>> If pika is just better than the amqp lib used by Kombu, wouldn't it be
>>> better to just contribute back to kombu?
>>>
>>> Cheers,
>>> Flavio
>>>
>>>>
>>>> My 2 cents :-P
>>>>
>>>> [1] https://github.com/ask
>>>>
>>>> -Josh
>>>>
>>>> Davanum Srinivas wrote:
>>>>>
>>>>>
>>>>> Hi Team,
>>>>>
>>>>> Here are the etherpads from the summit[1].
>>>>> Some highlights are as follows:
>>>>> Oslo.messaging : Took status of the existing zmq driver, proposed a
>>>>> new driver in parallel to the existing zmq driver. Also looked at
>>>>> possibility of using Pika with RabbitMQ. Folks from pivotal promised
>>>>> to help with our scenarios as well.
>>>>> Oslo.rootwrap : Debated daemon vs a new privileged service. The Nova
>>>>> change to add rootwrap as daemon is on hold pending progress on the
>>>>> privsep proposal/activity.
>>>>> Oslo.versionedobjects : We had a nice presentation from Dan about what
>>>>> o.vo can do and a deepdive into what we could do in next release.
>>>>> Taskflow : Josh and team came up with several new features and how to
>>>>> improve usability
>>>>>
>>>>> We will also have several new libraries in Liberty (oslo.cache,
>>>>> oslo.service, oslo.reports, futurist, automaton etc). We talked about
>>>>> our release processes, functional testing, deprecation strategies and
>>>>> debated a but about how best to move to async models as well. Please
>>>>> see etherpads for detailed information.
>>>>>
>>>>> thanks,
>>>>> dims
>>>>>
>>>>> [1]
>>>>> https://wiki.openstack.org/wiki/Design_Summit/Liberty/Etherpads#Oslo
>>>>>
>>>>
>>>>
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>>>
>>>
>>>
>>> --
>>> @flaper87
>>> Flavio Percoco
>>>
>>>
>>> __________________________________________________________________________
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>>
>>
>>
>> --
>> Davanum Srinivas :: https://twitter.com/dims
>
>
> --
> @flaper87
> Flavio Percoco



-- 
Davanum Srinivas :: https://twitter.com/dims



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