[openstack-dev] [glance] Should image size/checksum be immutable for active images?

Mark Washenberger mark.washenberger at markwash.net
Fri Aug 9 16:08:53 UTC 2013

This is definitely a bug of some form or another. When you change either
size or checksum, I believe you lose the ability to download your image. I
still want to think a bit more to be assured that "fixing" this bug isn't
somehow backwards incompatible, however.

It seems like (only) the v1 api is affected by this problem--which is
somewhat astonishing. I'll keep digging to try to figure out the origin of
this problem. Meanwhile, Stuart, could you file a bug?

On Wed, Aug 7, 2013 at 10:20 AM, Clint Byrum <clint at fewbar.com> wrote:

> Excerpts from stuart.mclaren's message of 2013-08-07 02:13:15 -0700:
> >
> > Typically its the not-very-interesting case of changing
> > the size from 0 to the real size after the data has uploaded.
> >
> > That happens before the image state transitions to 'active'.
> >
> Shouldn't the size be NULL, not 0, since it is unknown?
> If that is the case, seems like you should be able to reliably allow a
> transition from NULL to a value, but not from a value to anything else.
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