[openstack-dev] headsup - backwards incompatible change - python-novaclient is incompatible with [some] existing nova environments

Russell Bryant rbryant at redhat.com
Fri May 24 16:51:52 UTC 2013


On 05/24/2013 09:06 AM, Sean Dague wrote:
> On 05/24/2013 07:39 AM, Mark McLoughlin wrote:
>> On Fri, 2013-05-24 at 23:29 +1200, Robert Collins wrote:
>>> I just thought I'd call attention to this -
>>> https://bugs.launchpad.net/python-novaclient/+bug/1173353
>>>
>>> Since https://review.openstack.org/#/c/26365/ landed,
>>> python-novaclient will trigger a 400 error from nova-api when setting
>>> quotas, because it supplies an option existing nova doesn't support.
>>>
>>> There are no novas running anything in trunk that *can* support it,
>>> because the nova side of the code hasn't landed.
>>>
>>> I think this is another case where we should back it out, and land it
>>> again with some thought for backwards compat.
>>
>> Agree - we shouldn't be afraid to do an immediate revert of mistakes
>> like this and revisit when the heat is out of the situation.
>>
>> I made a mistake with backwards compat this week in oslo.config - it's
>> easily done and no-one should take offence at a quick revert for an
>> issue like this.
> 
> As I didn't notice anyone else pushing the revert for review, it's here
> now - https://review.openstack.org/30436

Thanks everyone.  Approved.

-- 
Russell Bryant



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