Open Stack

I'm slightly confused how we got there, because we do try to install
everything all at once in the test jobs -
http://logs.openstack.org/83/181083/1/check/check-requirements-integration-dsvm/4effcf7/console.html#_2015-05-07_17_49_26_699

And it seemed to work, you can find similar lines in previous changes as
well. That was specifically added as a check for these kinds of issues.
Is this a race in the resolution?

On 05/08/2015 04:02 AM, Robert Collins wrote:
> I don't know if they are *intended* to be, but right now there is no
> set of versions that can be co-installed, of everything listed in
> global requirements.
> 
> I don't have a full set of the conflicts (because I don't have a good
> automatic trace for 'why X is unresolvable' - its nontrivial).
> 
> However right now:
> openstack-doc-tools>=0.23
> and
> oslo.config>=1.11.0
> 
> conflict because openstack-doc-tools has no releases  >=0.23
> compatible with oslo.config>=1.11.0:
> e.g.
> Cached requires for ('openstack-doc-tools', (), <Version('0.26.0')>)
> (('argparse', (), <SpecifierSet('')>), ('oslo.config', (),
> <SpecifierSet('<1.10.0,>=1.9.3')>), ('pbr', (),
> <SpecifierSet('!=0.7,<1.0,>=0.6')>), ('iso8601', (),
> <SpecifierSet('>=0.1.9')>), ('lxml', (), <SpecifierSet('>=2.3')>),
> ('demjson', (), <SpecifierSet('')>), ('babel', (),
> <SpecifierSet('>=1.3')>), ('sphinx', (),
> <SpecifierSet('!=1.2.0,!=1.3b1,<1.3,>=1.1.2')>))
> 
> (this is output from the debug trace in my pip resolver branch).
> 
> Now, this is probably never showing up in the gate today, but
> something as simple as:
> pip install oslo.config
> pip install 'openstack-doc-tools>=0.23'
> will show the issue:
> $ pip install oslo.config
> Downloading/unpacking oslo.config
>   Downloading oslo.config-1.11.0-py2.py3-none-any.whl (67kB): 67kB downloaded
> Requirement already satisfied (use --upgrade to upgrade): six>=1.9.0
> in /home/robertc/.virtualenvs/pip-test/lib/python2.7/site-packages
> (from oslo.config)
> Downloading/unpacking pbr>=0.6,!=0.7,<1.0 (from oslo.config)
>   Downloading pbr-0.11.0-py2.py3-none-any.whl (78kB): 78kB downloaded
> Downloading/unpacking stevedore>=1.3.0 (from oslo.config)
>   Downloading stevedore-1.4.0-py2.py3-none-any.whl
> Downloading/unpacking netaddr>=0.7.12 (from oslo.config)
>   Downloading netaddr-0.7.14-py2.py3-none-any.whl (1.5MB): 1.5MB downloaded
> Requirement already satisfied (use --upgrade to upgrade): argparse in
> /usr/lib/python2.7 (from oslo.config)
> Requirement already satisfied (use --upgrade to upgrade): pip in
> /home/robertc/.virtualenvs/pip-test/lib/python2.7/site-packages (from
> pbr>=0.6,!=0.7,<1.0->oslo.config)
> Installing collected packages: oslo.config, pbr, stevedore, netaddr
> Successfully installed oslo.config pbr stevedore netaddr
> Cleaning up...
> $ pip install 'openstack-doc-tools>=0.23'
> Downloading/unpacking openstack-doc-tools>=0.23
>   Downloading openstack_doc_tools-0.26.0-py2.py3-none-any.whl (180kB):
> 180kB downloaded
> Downloading/unpacking iso8601>=0.1.9 (from openstack-doc-tools>=0.23)
>   Downloading iso8601-0.1.10.tar.gz
>   Running setup.py
> (path:/home/robertc/.virtualenvs/pip-test/build/iso8601/setup.py)
> egg_info for package iso8601
>    Downloading/unpacking oslo.config>=1.9.3,<1.10.0 (from
> openstack-doc-tools>=0.23)
>   Downloading oslo.config-1.9.3-py2.py3-none-any.whl (67kB): 67kB downloaded
>                                          ^^^^^^^^^^^
> ....
> 
> So this will downgrade oslo.config to meet the requirements - and that
> could of course be very very surprising to the gate ;)
> 
> I don't have a fully formed view yet on complete co-installability in
> our global requirements. But without that it may be hard to calculate
> a working set that we can pin (if we go all-pinned), and its certainly
> harder to write tooling to do any sort of analysis because we have to
> start partitioning it into sets that work together, and those that
> don't.
> 
> -Rob
> 
> 


-- 
Sean Dague
http://dague.net