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Recently (4 weeks?) moved from Icehouse to Juno. It was pretty smooth
(neutron has been much more well behaved though I know that's not
relevant to you).

One negative difference I noticed, but haven't really dug into yet
since it's not a common pattern here:

If I schedule >20 instances in one API call I get conductor timeouts
and zero launches.  If I make many parallel scheduling calls for <20
instances each response is good and scaling out to several hundred
parallel launches is much faster and with out the neutron timeout
errors that plagued me since I switched over to quantum in Grizzly.

As I said I've not looked deeply at this so it may be a local config
issue rather than something systemic with Juno, but if it's an
important use case for you be sure to take a good look at it.

-Jon

On Tue, Feb 17, 2015 at 12:56 PM, Joe Topjian <joe at topjian.net> wrote:
> Nice - thanks, Jesse. :)
>
> On Tue, Feb 17, 2015 at 10:35 AM, Jesse Keating <jlk at bluebox.net> wrote:
>>
>> On 2/17/15 8:46 AM, Joe Topjian wrote:
>>>
>>>
>>> The only issue I'm aware of is that live snapshotting is disabled. Has
>>> anyone re-enabled this and seen issues? What was the procedure to
>>> re-enable?
>>
>>
>> We've re-enabled it. Live snapshots take more system resources, which
>> meant I had to dial back down my Rally test to validate how it could
>> perform.
>>
>> To re-enable it, we reverted the upstream commit that disabled it.
>>
>>
>> https://github.com/blueboxgroup/nova/commit/fa3a9208ea366489410b4828bd20a74a571287a6
>>
>> Once that was clear, and we had an upgraded version of libvirt in place,
>> live snapshots just happened.
>>
>> As for the rest of your mail, we're going from Havana to Juno, and we have
>> neutron, so some of our experience won't necessarily apply to you.
>>
>> --
>> -jlk
>>
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