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On 11.12.2015 12:06, Bogdan Dobrelya wrote:
> Hello.
> 
> On 02.12.2015 12:01, Bogdan Dobrelya wrote:
>>> Bogdan,
>>>
>>> Which service would use this flag to start with? and how would the
>>> code change to provide "app side is fully responsible for duplicates
>>> handling"?
>>
>> (fixed topic tags to match oslo.messaging)
>>
>> AFAIK, this mode is required by Mistral HA. Other projects may want
>> the at-least-once rpc delivery model as well.
>>
>> I see that the patch scope is not enough. Although it would be nice to
>> have it demonstrated by the simple example... Anyway, we should address
>> all of the concerns raised here in the spec.
>>
>>>
>>> Thanks,
>>> Dims
>>>
>>> On Tue, Dec 1, 2015 at 4:27 AM, Bogdan Dobrelya <bdobrelia at mirantis.com> wrote:
>>>> On 30.11.2015 14:28, Bogdan Dobrelya wrote:
>>>>> Hello.
>>>>> Please let's make this change [0] happen to the Oslo messaging.
>>>>> This is reasonable, straightforward and backwards compatible change. And
>>>>> it is required for OpenStack applications - see [1] - to implement a
>>>>> sane HA. The only thing left is to cover this change by unit tests.
>>>>>
>>>>> [0] https://review.openstack.org/229186
>>>>> [1]
>>>>> http://lists.openstack.org/pipermail/openstack-dev/2015-October/076217.html
>>>>>
>>>>
>>>> Here is related bp [0]. I will submit the spec as well and put there all
> 
> Here is the spec [0]. Thank you all of the review participants to make
> things clear. There is the easiest job left to do now - implementation.
> 
> [0] https://review.openstack.org/256342

I updated the spec to align it with given recommendations to move it
under the Tooz + taskflow + DLM "tent", see also [0]

[0] https://review.openstack.org/#/c/260246/

> 
>>>> of the concerns Mehdi Abaakouk provided in the aforementioned patch
>>>> review process. I believe the ack-then-process pattern *has* use cases,
>>>> that is why this topic will be raised again and again unless adressed.
>>>>
>>>> [0]
>>>> https://blueprints.launchpad.net/oslo.messaging/+spec/at-least-once-guarantee
>>>>
>>>>
>>>> --
>>>> Best regards,
>>>> Bogdan Dobrelya,
>>>> Irc #bogdando
>>>>
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>>
>>
> 
> 


-- 
Best regards,
Bogdan Dobrelya,
Irc #bogdando