Refactoring of L3 Scheduler

[Armando Migliaccio]

During Kilo we merged "DHCP Service LoadBalancing Scheduler" feature:

* https://review.openstack.org/#/c/111210/ (neutron-specs)
* https://review.openstack.org/#/c/137017/ (neutron)

The implementation provided as simplified framework for writing scheduler functions. It would be nice if the L3 scheduler embraced this same framework. It would neat and consistent.

[Armando Migliaccio (armando-migliaccio)]

To be discussed at the drivers meeting

[Armando Migliaccio (armando-migliaccio)]

A spec has been around for a while. It is relevant to this bug: https://review.openstack.org/#/c/184215/

[OpenStack Infra (hudson-openstack)]

Change abandoned by Armando Migliaccio (<email address hidden>) on branch: master
Review: https://review.openstack.org/184215
Reason: This review was last updated before Mitaka started - September, 23, 2015 - and it still targets Liberty, which has released. Feel free to resubmit to Mikata, but please follow the latest feature submission guidelines as defined in: http://docs.openstack.org/developer/neutron/policies/blueprints.html

[Armando Migliaccio (armando-migliaccio)]

If we have someone interested in the code clean up, I can't see why we shouldn't do it. Let's see if can agree. I can't approve my own proposal :)

[Hong Hui Xiao (xiaohhui)]

I just checked the code and found it is interesting to do the job, so I would like to do the clean up.

[Akihiro Motoki (amotoki)]

At least what I can say is that it is not a good idea to have two different schemes for scheduling: DHCP and L3.
L3 scheduling needs to take into account L3-HA. If we can simplify the code base well, it is good to go with low priority.

Note that AZ feature was added in Mitaka. It may be needed to change the base scheduler if necessary.

[Carl Baldwin (carl-baldwin)]

I can review code for this when necessary. I think in the meeting today, we decided that this doesn't need to be tracked as an RFE. I'll let Armando confirm by setting the tags/status appropriately.

[Armando Migliaccio (armando-migliaccio)]

Yes, no RFE, no spec. We look forward to the code.

[Hong Hui Xiao (xiaohhui)]

@amank, I am still available for this work item. If you don't have time for it, pls let me know.

[Aman Kumar (amank)]

@Hong, please Check your mail and reply over that.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/320347

[Hong Hui Xiao (xiaohhui)]

The code is ready at https://review.openstack.org/320347

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/332644

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/332727

[OpenStack Infra (hudson-openstack)]

Change abandoned by Armando Migliaccio (<email address hidden>) on branch: master
Review: https://review.openstack.org/332727
Reason: This review is > 4 weeks without comment, and failed Jenkins the last time it was checked. We are abandoning this for now. Feel free to reactivate the review by pressing the restore button and leaving a 'recheck' comment to get fresh test results.

[OpenStack Infra (hudson-openstack)]

Change abandoned by Armando Migliaccio (<email address hidden>) on branch: master
Review: https://review.openstack.org/320347
Reason: This review is > 4 weeks without comment, and failed Jenkins the last time it was checked. We are abandoning this for now. Feel free to reactivate the review by pressing the restore button and leaving a 'recheck' comment to get fresh test results.

[OpenStack Infra (hudson-openstack)]

Change abandoned by Armando Migliaccio (<email address hidden>) on branch: master
Review: https://review.openstack.org/332644
Reason: This review is > 4 weeks without comment, and failed Jenkins the last time it was checked. We are abandoning this for now. Feel free to reactivate the review by pressing the restore button and leaving a 'recheck' comment to get fresh test results.

[Launchpad Janitor (janitor)]

[Expired for neutron because there has been no activity for 60 days.]