On Mon, Aug 04, 2014 at 03:38:56PM -0600, Chris Custine wrote: > > Ideally jclouds should follow the best practice of whatever HP > > recommends and what other language bindings implement. We should not > > gratuitously change the defaults; if I understand it correctly, we will > > impose three transitions to users of the default region: > > > > 1.7.3 swift = default region region-a.geo-1 > > 1.8.0 swift = default region region-b.geo-1 > > 1.8.1 swift = default region changes back to region-a.geo-1? > > openstack-swift = error without default region > > > > How can we minimize this pain? > > In a nutshell, the previous behavior of selecting the first region was more > of an accident due to the way HP lists its object storage endpoint versions. > The default endpoint selection in the keystone provider and other overrides > is to pick the last matching endpoint where service type and version > match[1][2][3]. The HP parent SwiftApiMetdata version is “1.0", and HP has > region-a as “1.0” but region-b as “1” in keystone (they are aware of this but > I have been told it is unlikely to be changed), so as a consequence, this > logic always returned region-a which happens to be first. It also meant that > you could never talk to region-b because it would never match the version. My > fixes for the HP provider are currently ignoring api version when it matches > so that you can actually talk to region-b if you want to. As a side effect, > the intended behavior works and if you don’t specify region it returns the > last one just like all other openstack providers. > > So having said all of that, I am fine with returning the old (broken) > behavior if that is the community consensus, but I wanted to present the > facts and make sure that this fix wasn’t seen as gratuitously changing > defaults or otherwise having a disregard for impact on users. > > If this is a lone blocker, I also take ownership and volunteer to cut the > next RC if it is necessary. :-)
While I appreciate the technical background on this issue, I am more worried about the user experience. Can you address my question about how many times we plan to change the default region for users? Most hpcloud-objectstorage users likely use the default and will find multiple changes confusing. Further, if we are going to change the default, can we align with other language bindings like fog? -- Andrew Gaul http://gaul.org/
