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Hi Sukhdev,

The common sync framework is something i was also thinking about for some
time now.
I think its a very good idea and would love if i could participate in the
talks (and hopefully the implementation as well)

Thanks
Gal.

On Wed, Sep 9, 2015 at 9:46 AM, Sukhdev Kapur <sukhdevkapur at gmail.com>
wrote:

> Folks,
>
> We are planning on having ML2 coding sprint on October 6 through 8, 2015.
> Some are calling it Liberty late-cycle sprint, others are calling it Mitaka
> early-cycle sprint.
>
> ML2 team has been discussing the issues related to synchronization of the
> Neutron DB resources with the back-end drivers. Several issues have been
> reported when multiple ML2 drivers are deployed in scaled HA deployments.
> The issues surface when either side (Neutron or back-end HW/drivers)
> restart and resource view gets out of sync. There is no mechanism in
> Neutron or ML2 plugin which ensures the synchronization of the state
> between the front-end and back-end. The drivers either end up implementing
> their own solutions or they dump the issue on the operators to intervene
> and correct it manually.
>
> We plan on utilizing Task Flow to implement the framework in ML2 plugin
> which can be leveraged by ML2 drivers to achieve synchronization in a
> simplified manner.
>
> There are couple of additional items on the Sprint agenda, which are
> listed on the etherpad [1]. The details of venue and schedule are listed on
> the enterpad as well. The sprint is hosted by Yahoo Inc.
> Whoever is interested in the topics listed on the etherpad, is welcome to
> sign up for the sprint and join us in making this reality.
>
> Additionally, we will utilize this sprint to formalize the design
> proposal(s) for the fish bowl session at Tokyo summit [2]
>
> Any questions/clarifications, please join us in our weekly ML2 meeting on
> Wednesday at 1600 UTC (9AM pacific time) at #openstack-meeting-alt
>
> Thanks
> -Sukhdev
>
> [1] - https://etherpad.openstack.org/p/Neutron_ML2_Mid-Cycle_Sprint
> [2] - https://etherpad.openstack.org/p/neutron-mitaka-designsummit
>
>
>
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-- 
Best Regards ,

The G.
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