On Wednesday, July 24, 2013 03:46:10 AM Robie Basak wrote:
> On Tue, Jul 23, 2013 at 09:31:15PM -0400, Scott Kitterman wrote:
> > Before we run off and expend a lot more effort on this, I'd like to
> > see something other than handwaving that this is really is a
> > significant issue.
> [size comparisions snipped]
> My concern is latency, not size. How many round trips will we save this
> way? For cloud images using Amazon S3 mirrors, for example, each request
> is quite a bit slower AIUI, and apt-get doesn't currently support
> concurrent requests to a single server.
> This is a pain for instances that start up with cloud-init and
> immediately have to update sources and install things before they can
> become functional. It'd be nice to see the delay from "juju deploy" to
> having a live service running get shorter. Same for "juju add-unit".
> Admittedly an alternative means to achieve this could be to have
> cloud-init remove the deb-src lines first, but it seems a shame to leave
> others behind if this really does improve things.
> I agree that I should come up with actual figures before pushing ahead
> for this reason.
Has any work been done on concurrent requests? That would likely be pretty
broadly useful, not just for cloud images.
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