Just quick comment here on my day off. I will get proper reply to the chain itself tomorrow when I'm back.
While I cannot argue with all Mike's points below, I personally cannot stand behind his proposals here and just want to indicate that this is view of one member, not the Glance community by wide. - Erno "Jokke" Kuvaja On Mon, Jun 12, 2017 at 2:56 PM, Mikhail Fedosin <mfedo...@gmail.com> wrote: > Hello! > > Flavio raised a very difficult and important question, and I think that we, > as community members, should decide what to do with Glance next. > > I will try to state my subjective opinion. I was involved in the Glance > project for almost three years and studied it fairly plank. I believe that > the main problem is that the project was designed extremely poorly. Glance > does not have many tasks to solve, but nevertheless, there are a lot of Java > design patterns used (factory of factories, visitors, proxy and other things > that are unnecessary in this case). All this leads to absolutely sad > consequences, when in order to add an image tag over 180 objects of > different classes are created, the code execution passes through more than > 25 locations with a number of callbacks 3 times. So I can say that the code > base is artificially over-complicated and incredibly inflated. > > The next problem is that over the years the code has grown by a number of > workarounds, which make it difficult to implement new changes - any change > leads to something breaking down somewhere else. In the long run, we get a > lot of pain associated with race conditions, hard-to-recover heisenbugs and > other horrors of programmer's life. It is difficult to talk about attracting > new developers, because the developing of the code in such conditions is > mentally exhausting. > > We can continue to deny the obvious, saying that Glance simply needs people > and everything will be wonderful. But unfortunately this is not so - we > should admit that it is simply not profitable to engage in further > development. I suggest thinking about moving the current code base into a > support mode and starting to develop an alternative (which I have been doing > for the past year and a half). > > If you are allergic to the word "artifacts", do not read the following > paragraph: > > We are actively developing the Glare project, which offers a universal > catalog of various binary data along with its metadata - at the moment the > catalog supports the storage of images of virtual machines and has feature > parity with Glance. The service is used in production by Nokia, and it was > thoroughly tested at various settings. Next week we plan to release the > first stable version and begin the integration with various projects of > OpenStack: Mistral and Vitrage in the first place. > > As a solution, I can propose to implement an additional API to Glare, which > would correspond to OpenStack Image API v2 and test that OpenStack is able > to work on its basis. After that, leave Glance at rest and start developing > Glare as a universal catalog of binary data for OpenStack. > > Best, > Mike > > On Fri, Jun 9, 2017 at 8:07 PM, Flavio Percoco <fla...@redhat.com> wrote: >> >> (sorry if duplicate, having troubles with email) >> >> Hi Team, >> >> I've been working a bit with the Glance team and trying to help where I >> can and >> I can't but be worried about the critical status of the Glance team. >> Unfortunately, the number of participants in the Glance team has been >> reduced a >> lot resulting in the project not being able to keep up with the goals, the >> reviews required, etc.[0] >> >> I've always said that Glance is one of those critical projects that not >> many >> people notice until it breaks. It's in every OpenStack cloud sitting in a >> corner >> and allowing for VMs to be booted. So, before things get even worse, I'd >> like us to brainstorm a bit on what solutions/options we have now. >> >> I know Glance is not the only project "suffering" from lack of >> contributors but >> I don't want us to get to the point where there won't be contributors >> left. >> >> How do people feel about adding Glance to the list of "help wanted" areas >> of >> interest? >> >> Would it be possible to get help w/ reviews from folks from teams like >> nova/cinder/keystone? Any help is welcomed, of course, but I'm trying to >> think >> about teams that may be familiar with the Glance code/api already. >> >> Cheers, >> Flavio >> >> [0] http://stackalytics.com/?module=glance-group&metric=marks >> [1] https://review.openstack.org/#/c/466684/ >> >> -- >> @flaper87 >> Flavio Percoco >> >> >> __________________________________________________________________________ >> OpenStack Development Mailing List (not for usage questions) >> Unsubscribe: openstack-dev-requ...@lists.openstack.org?subject:unsubscribe >> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev >> > > > __________________________________________________________________________ > OpenStack Development Mailing List (not for usage questions) > Unsubscribe: openstack-dev-requ...@lists.openstack.org?subject:unsubscribe > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev > __________________________________________________________________________ OpenStack Development Mailing List (not for usage questions) Unsubscribe: openstack-dev-requ...@lists.openstack.org?subject:unsubscribe http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
