--constraints "root-disk=16384M" fails in EC2

[Kapil Thangavelu]

 i hadn't realized it was doing block dev maps, but yeah that's readily
apparent in going through the source. cool.



On Thu, May 29, 2014 at 9:47 PM, Ian Booth <ian.booth at canonical.com> wrote:

> If a root disk constraint is specified, Juju will translate that into a
> block
> device mapping request when the instance is started. Hence we do start an
> instance with the required root disk size but the subsequent constraints
> matching fails. That's my understanding anyway.
>
> On 30/05/14 11:42, Kapil Thangavelu wrote:
> > fwiw. all the ubuntu cloud images root disks in ec2 have 8gb of disk size
> > by default, juju doesn't reallocate the root volume size when creating an
> > instance (if it did cloudinit will auto resize the root fs if its created
> > with a larger root vol).
> >
> >
> > On Thu, May 29, 2014 at 8:26 PM, Ian Booth <ian.booth at canonical.com>
> wrote:
> >
> >> Hi Stein
> >>
> >> This does appear to be a bug in Juju's constraints handling for EC2.
> >> I'd have to do an experiment to confirm, but certainly reading the code
> >> appears to show a problem.
> >>
> >> Given how EC2 works, in that Juju asks for the specified root disk size
> >> when starting an instance, I don't have a workaround that I can think
> >> of to share with you.
> >>
> >> The fix for this would be relatively simple to implement and so can be
> >> done in time for the next stable release (1.20) which is due in a few
> >> weeks. Alternatively, we hope to have a new development release out
> >> next week (1.19.3).  I'll try to get any fix done in time for that also.
> >>
> >> I've raised bug 1324729 for this issue.
> >>
> >> On Fri 30 May 2014 09:29:15 EST, GMail wrote:
> >>> Trying to deploy a charm with some extra root disk space. When using
> the
> >> root-disk constraint defined above I get the following error:
> >>>
> >>> '(error: no instance types in us-east-1 matching constraints
> >> "cpu-power=100 root-disk=16384M")'
> >>>
> >>> I’m deploying a bundle with the following constraints: constraints:
> >> "mem=4G arch=amd64”, but need more disk-space then the default provided.
> >>>
> >>> Any suggestions ?
> >>>
> >>>
> >>> Stein Myrseth
> >>> Bjørkesvingen 6J
> >>> 3408 Tranby
> >>> mob: +47 909 62 763
> >>> mailto:stein.myrseth at gmail.com
> >>>
> >>>
> >>>
> >>>
> >>
> >> --
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> >>
> >
>
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