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

Flavio Percoco flavio at redhat.com
Thu May 28 13:24:16 UTC 2015


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
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