On Mon, Mar 23, 2015 at 11:18:28AM +0530, Deepthi Dharwar wrote:
> All the VM information is stored in the instances table. 
> This includes all the time related field like scheduled_at, launched_at etc.
> 
> After upgrading to Juno, I have noticed that my 'scheduled_at' field
> is not getting reflected at all in the database. I do see my VMs
> being spawned and running just fine. However, the 'launched_at' time 
> does get reflected rightly.
> 
> 
> MariaDB [nova]> select created_at, deleted_at, host,scheduled_at, launched_at 
> from instances;
> +---------------------+---------------------+-----------------------+--------------+---------------------+
> | created_at          | deleted_at          | host                  | 
> scheduled_at | launched_at         |
> +---------------------+---------------------+-----------------------+--------------+---------------------+
> | 2015-03-09 20:00:41 | 2015-03-10 17:12:11 | localhost             | NULL    
>      | 2015-03-09 20:01:30 |
> | 2015-03-11 05:53:13 | NULL                | localhost                   | 
> NULL         | 2015-03-18 19:48:12 |
> 
> 
> Can anyone let me know if this is a genuine issue or have there been
> a recent change in regard to updating this field ? 
> 
> I am basically trying to find as to how long a particular VM is running on a 
> given host.
> I was using the current time - scheduled time for the same.
> Is there a better way to get this value ?

Use current_time - launched_at.

Best,
-jay

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