[openstack-dev] [Nova] Questions about instance actions' update and finish

Chris Friesen chris.friesen at windriver.com
Thu Jun 30 16:10:52 UTC 2016

On 06/29/2016 09:13 PM, Edward Leafe wrote:
> On Jun 29, 2016, at 10:05 PM, Matt Riedemann <mriedem at linux.vnet.ibm.com>
> wrote:
>>>> 2. The updated_at field is also empty, should we sync the updated_at
>>>> time to the created_at time when we create the action and also update
>>>> it whenever the action status changed, e.g finished.
>>> When a finish_time is recorded that should definitely also update
>>> updated_at. I would be in favor of having updated_at set when the
>>> instance action is created. I've never fully understood why Nova doesn't
>>> do that generally.
>> As discussed in the API meeting this morning, I thought it would be odd to
>> set updated_at = created_at when the record is created.
> It's really very common. Think of 'updated_at' as meaning 'the last time this
> record was modified'. For a new record, the initial creation is also the last
> time it was modified.

For what it's worth, this is how the timestamps work for POSIX filesystems. 
When you create a file it sets the access/modify/change timestamps to the file 
creation time.


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