Hi,
Luke Yasuda <[email protected]> writes:
> On 2025-08-12 19:42, Maxim Cournoyer wrote:
>> Hello Jing,
>> I've been using the mirror you've kindly setup for at least a month
>> [0],
>> and it's given me a nice speed boost compared to berlin (I can
>> sometimes
>> max my networking equipment bandwidth at about 12 MiB/s, while with
>> ci.guix.gnu.org it typically tops around 5 MiB/s on the best days).
>
> I'm glad the at least someone found it useful ;D
:-).
>> One place where it is excruciatingly slow though is for checking the
>> availability of the substitutes ("looking for substitutes"), which
>> corresponds to querying the server for .narinfo files; it seems to
>> be on
>> at least a 10x order slower than berlin, perhaps 100x, to the point
>> that
>> I often must 'export
>> GUIX_BUILD_OPTIONS=--substitute-urls=https://ci.guix.gnu.org' to get
>> past a lengthy check when there are many substitutes being looked for.
>
> hmm, I would wonder if the connection just times out. It's not
> uncommon these days unfortunately: the router is sometimes overloaded
> and drops packets, nginx may drop connections too, because of very
> high traffic from crawlers, bad bots, DDoS attacks, etc. The internet
> has become extremely hostile.
I haven't seen connection dropping out; it's just very slow to scan for
substitutes. Once the download starts it's fast.
>> Is there something in the proxy setup that could explain this? From
>> what
>> I remember, the connection is supposed to be reused for multiple
>> queries; perhaps a configuration issue could cause this to not be
>> possible for your mirror? (I'm just speculating reasons that could
>> explain a slowdown).
>> Anyhow, thanks for maintaining it!
>> [0] https://berlin-guix.jing.rocks
>
> I have more bad news. I'm moving to a new home, and because I host the
> servers at home, they come with me. There is no word on when the fiber
> line will be done at the new place yet, and I will have to rely on a
> pocket wifi for internet access for months. Therefore the servers will
> be down for an unknown amount of time. I'm not optimistic that the
> fiber line will be connected soon; the ISP seems to be very reluctant
> to get the work done because the building is too old and may not have
> space for more (fiber optic) cables. The worst case scenario is that
> I'll live with internet over tv cables, no static IPs; but let's hope
> it doesn't come to that. Either way, *.jing.rocks will be down for a
> few months, starting from Aug 14 ish.
I see, thanks for the heads-up. I'll re-point my servers to the default
ones, but do let us know when you're all settled and the mirror up
again. Until then, happy moving (in such heat, oof!)
PS: I hadn't appreciated that this was self-hosted at home. I thought
you had some kind of collaboration with a local university that provided
the server/storage/network. Kudos!
--
Thanks,
Maxim
