Open Stack

Hi Pavlo,

Can we just use a wheel package for numpy instead?

Thanks,
Roman

On Thu, Nov 26, 2015 at 3:00 PM, Pavlo Shchelokovskyy
<pshchelokovskyy at mirantis.com> wrote:
> Hi again,
>
> I've went on and created a proper pull request to websockify [0], comment
> there if you think we need it :)
>
> I also realized that there is another option, which is to include
> python-numpy to files/debs/ironic and files/debs/nova (strangely it is
> already present in rpms/ for nova, noVNC and spice services).
> This should install a pre-compiled version from distro repos, and should
> also speed things up.
>
> Any comments welcome.
>
> [0] https://github.com/kanaka/websockify/pull/212
>
> Best regards,
>
> On Thu, Nov 26, 2015 at 1:44 PM Pavlo Shchelokovskyy
> <pshchelokovskyy at mirantis.com> wrote:
>>
>> Hi all,
>>
>> I was long puzzled why devstack is installing numpy. Being a fantastic
>> package itself, it has the drawback of taking about 4 minutes to compile its
>> C extensions when installing on our gates (e.g. [0]). I finally took time to
>> research and here is what I've found:
>>
>> it is used only by websockify package (installed by AFAIK ironic and nova
>> only), and there it is used to speed up the HyBi protocol. Although the code
>> itself has a path to work without numpy installed [1], the setup.py of
>> websockify declares numpy as a hard dependency [2].
>>
>> My question is do we really need those speedups? Do we test any feature
>> requiring fast HyBi support on gates? Not installing numpy would shave 4
>> minutes off any gate job that is installing Nova or Ironic, which seems like
>> a good deal to me.
>>
>> If we decide to save this time, I have prepared a pull request for
>> websockify that moves numpy requirement to "extras" [3]. As a consequence
>> numpy will not be installed by default as dependency, but still possible to
>> install with e.g. "pip install websockify[fastHyBi]", and package builders
>> can also specify numpy as hard dependency for websockify package in package
>> specs.
>>
>> What do you think?
>>
>> [0]
>> http://logs.openstack.org/82/236982/6/check/gate-tempest-dsvm-ironic-agent_ssh/1141960/logs/devstacklog.txt.gz#_2015-11-11_19_51_40_784
>> [1]
>> https://github.com/kanaka/websockify/blob/master/websockify/websocket.py#L143
>> [2] https://github.com/kanaka/websockify/blob/master/setup.py#L37
>> [3]
>> https://github.com/pshchelo/websockify/commit/0b1655e73ea13b4fba9c6fb4122adb1435d5ce1a
>>
>> Best regards,
>> --
>> Dr. Pavlo Shchelokovskyy
>> Senior Software Engineer
>> Mirantis Inc
>> www.mirantis.com
>
> --
> Dr. Pavlo Shchelokovskyy
> Senior Software Engineer
> Mirantis Inc
> www.mirantis.com
>
> __________________________________________________________________________
> OpenStack Development Mailing List (not for usage questions)
> Unsubscribe: OpenStack-dev-request at lists.openstack.org?subject:unsubscribe
> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
>