Sadly this patch is now abandoned. As stated in the review I did, the bug is one we should definitely fix, but it is even more important to avoid introducing further race conditions.
I will look back at the latest comments from Zhang and see whether we can go ahead and restore that patch or whether a different approach will be needed. Regards, Salvatore Il 11/dic/2013 23:18 "Mike Wilson" <[email protected]> ha scritto: > Hi Neutron team, > > I haven't been involved in neutron meetings for quite some time so I'm not > sure where we are on this at this point. It is often recommended in > OpenStack guides and other operational materials to run multiple > neutron-servers to deal with the API load from Nova. Things like the > _heal_instance_info_caches periodic task as well as just normal create > requests are pretty heavy. Those issues aside I think we can all agree that > it would good for the neutron-server to be horizontally scalable. I don't > have a handle on the all the issues surrounding this. However, I did report > a bug a few months ago about concurrency and updates to the > IpAvailabilityRanges[1]. There was a fix proposed by Zhang Hua [2] that > seems like it needs more discussion. > > Essentially, Salvatore has concerns about patching up a design flaw from > what I gather. At the same time, we still have had this issue since the > initial release of neutron(quantum) and it is still a really big deal for > deployers. I would like to propose that we pick up the conversation where > it left off on the proposed fix and _also_ consider any possible redesign > going forward. > > Could I get some feedback from Salvatore specifically and other members of > the team on this? I would also be happy to pitch in towards whatever > solution is decided on provided we can rescue the poor deployers :-). > > -Mike Wilson > > > [1] https://bugs.launchpad.net/neutron/+bug/1214115 > [2] https://review.openstack.org/43275 > > _______________________________________________ > OpenStack-dev mailing list > [email protected] > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev > >
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