Re: [Xen-users] leap second mess

[Tony Lill <ajlill@xxxxxxxxxxxxxxxxxxx>]

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Nah, I think it's just a co-incidence that all the affected machines
were Xen VMs. Guess I should go through them all and update the kernels.

On 07/02/2012 05:41 AM, Ian Campbell wrote:
> On Sun, 2012-07-01 at 16:32 +0100, Tony Lill wrote:
>> Apparently this is a known bug
>> 
>> http://blog.mozilla.org/it/2012/06/30/mysql-and-the-leap-second-high-cpu-and-the-fix/
>
>> 
> AFAIK there isn't anything Xen specific here, is there?
> 
> If there is then we'll need more details about exactly what was
> running (dom0 and domU OS, userspace workloads etc) on the machines
> in question.
> 
> Ian.
> 
>> 
>> 
>> On 07/01/2012 11:23 AM, Tony Lill wrote:
>>> Yeah, that was fun. According to my monitoring, context
>>> switches and interrupts increased by a factor of 10 or more
>>> when the leap second was added.
>>> 
>>> On 07/01/2012 08:59 AM, G.Bakalarski@xxxxxxxxxx wrote:
>>>> Hi list
>>> 
>>>> Maybe everybody already knows this, but
>>> 
>>>> today many of our domUs got crazy - unusually
>>> 
>>>> high load on machines doing nothing (e.g. load of 200
>>> 
>>>> on machine which usually has load 2-4).
>>> 
>>>> Simple command:
>>> 
>>>> date; date `date +"%m%d%H%M%C%y.%S"`; date
>>> 
>>>> magically make peace ...
>>> 
>>> 
>>>> [shocked]
>>> 
>>> 
>>>> GB
>>> 
>>> 
>>>> _______________________________________________ Xen-users
>>>> mailing list Xen-users@xxxxxxxxxxxxx
>>>> http://lists.xen.org/xen-users
>>> 
>>> 
>>> 
>>> _______________________________________________ Xen-users
>>> mailing list Xen-users@xxxxxxxxxxxxx
>>> http://lists.xen.org/xen-users
>>> 
>> 
>> _______________________________________________ Xen-users mailing
>> list Xen-users@xxxxxxxxxxxxx http://lists.xen.org/xen-users
> 
> 
> 
> _______________________________________________ Xen-users mailing
> list Xen-users@xxxxxxxxxxxxx http://lists.xen.org/xen-users
> 

- -- 
Tony Lill, OCT,                    Tony.Lill@xxxxxxxxxxxxxxxxxxx
President, A. J. Lill Consultants                 (519) 650 0660
539 Grand Valley Dr., Cambridge, Ont. N3H 2S2     (519) 241 2461
- --------------- http://www.ajlc.waterloo.on.ca/ ----------------




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