:: Re: [devuan-dev] Country codes.
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Autor: Ralph Ronnquist
Data:  
Para: devuan-dev
Assunto: Re: [devuan-dev] Country codes.
Let me add the apt-panopticon statistics for borta.rrq.id.au, which
has an hourly run rate. It presents the following daily averages:

bandwidth ~ 13 GB in and below 1 GB out
network usage ~ 7 Mbps
vCPU usage ~ 18%

Ralph.

On Wed, Oct 12, 2022 at 02:11:39AM +1000, onefang wrote:
> When xx.deb.devuan.org was first proposed on IRC, I was just getting
> ready to go to bed, but stayed up an extra hour to help discuss that. So
> I probably wasn't fully awake at the time. lol
>
> Now I have just woken up, but at least I've had brekky.
>
> Also life has been getting in the way and I'm way behind on things I need
> to do in general.
>
> NOTE that all of this only applies to HTTP. HTTPS can't be supported by
> DNS-RR coz the mirrors don't have the cert for deb.devuan.org, nor should
> they. I don't know if FTP or rsync can support this sort of thing.
> apt-panopticon doesn't test FTP nor rsync yet.
>
> On 2022-10-11 09:35:03, B Stack wrote:
> > ### bb|hcb
> >
> > #### Mirrors DNS round robin
> > - `xx.deb.devuan.org` is now a redirector to `deb.devuan.org`. The
> > point in adding that is pointing all country codes without a mirror
> > serving them to `xx.deb.devuan.org` instead of `pkgmaster.devuan.org`.
>
> Does this mean that all mirrors on the existing DNS-RR now have to
> support xx.deb.devuan.org AS WELL AS the deb.devuan.org they support now?
> Or is it setup so that they can stick with their existing deb.devuan.org
> support?
>
> Currently when a user does apt requests from deb.devuan.org, the DNS
> system gives them some random IP from our DNS-RR, and apt then sends that
> IP a request asking for the deb.devuan.org domain, and that mirrors
> server has to be configured to respond to deb.devuan.org requests with
> the usual Devuan package mirror responses.
>
> If this new xx.deb.devuan.org thing results in requests for
> deb.devuan.org being sent to the mirrors, then the mirrors don't have to
> change anything. Which is my preference. Much simpler from my / mirror
> admins point of view.
>
> Naturally any mirror that volunteers to support a CC.deb.devuan.org
> should configure their mirror accordingly. Though having them configured
> to support a wildcard .deb.devuan.org covers all the things.
>
> > - Is it time to make the `CC.deb.devuan.org` official and announce it?
>
> I suspect yes, though see below.
>
> > As far as I am aware the only pending thing for this is to make
> > `apt-panopticon` to automatically change the mirror list.
>
> Ah apt-panopticon is not yet actually testing CC.deb.devuan.org, but it
> should. Might be best to have those tests in place before we announce
> "CC.deb.devuan.org is official", but on the other hand announcing
> "CC.deb.devuan.org is coming back once we iron out the kinks, feel free
> to help us test it" probably should be announced now.
>
> Back in the day there was this TODO item to have apt-panopticon driving
> DNS-RR. https://sledjhamr.org/mantisbt/view.php?id=142 where you can see
> that I have been really slack about doing that. lol
>
> To summarize, three separate instances of apt-panopticon could vote on
> who should be in the DNS-RR for the next ten minutes (until they all run
> their tests again). Then they somehow cryptographically let the DNS-RR
> know about the results of that vote so that it can update deb.devuan.org
> to point to the current good ones.
>
> Alas we only have two running every ten minutes, since rrq wanted his
> borta instance to only run once an hour. So sledjhamr and veritas run
> every ten minutes. Each run on all but borta takes about a minute.
>
> https://borta.devuan.dev/apt-panopticon/results/Report-web.html
> https://sledjhamr.org/apt-panopticon/results/Report-web.html
> http://veritas.devuan.org/apt-panopticon/results/Report-web.html
>
> Borta is in Australia, sledjhamr is in Netherlands, and I think veritas
> is in France. Would be nice to have one in the Americas somewhere as
> well. All three apt-panopticon instances tend to be in general agreement
> most of the time.
>
> Currently there is a master file on pkgmaster with the details of every
> package mirror. A cron job runs every hour to update the DNS-RR based on
> that, and also updates https://pkgmaster.devuan.org/mirror_list.txt I
> keep an eye on the apt-panopticons and manually edit that master file.
> It's very rare that I need to make changes, our package mirrors tend to
> be good most of the time. Note that this cron job is also updating the
> CC.deb.devuan.org DNS-RR. In the apt-panopticon main results table you
> can see a red question mark instead of a green tick in the "DNS round
> robin" column for any DNS-RR mirror that I have deemed "not acceptable
> for now".
>
> Also more code would need to be added to figure out "all country codes
> without a mirror" so we can point them at xx.deb.devuan.org. The
> existing cron job that parses the master file has enough info, or I could
> add it to apt-panopticon's DNS-RR deliberations.
>
> I have been thinking for a while that a better option than the complex
> cryptograph voting system would be to simply run apt-panopticon on
> pkgmaster. Though obviously that would increase the bandwidth load a
> bit. rrq should be able to give us some details on what the load on
> borta and veritas is, I can't separate out the sledjhamr load from all
> the other things it does. Which means the pkgmaster apt-panopticon can
> directly change that master file, and the cron job can update DNS-RR as
> usual. On the other hand, if we manage to move some of the bandwidth
> load off pkgmaster with these shenanigans, then it could probably afford
> this extra apt-panopticon load.
>
> BTW the sledjhamr instance uses less bandwidth than the others, coz it's
> also one of the mirrors that it checks, so doesn't use any bandwidth
> checking itself. Which is also why the speed of sledjhamr as measured on
> the sledjhamr apt-panopticon is incredibly fast. Local SSD beats
> Internet across the globe hands down. B-)
>
> So we could have pkgmaster run apt-panopticon from the cron job that
> updates DNS-RR, and that apt-panopticon updates the master file, so that
> later in the cron job the master file is used to change the DNS-RR. Then
> add CC's into that mix when I get a round tuit. Not sure if we should
> have the cron job run every ten minutes as originally planned, or once an
> hour like it does now, or split the difference.
>
> I had already designed apt-panopticon to have output modules, and it
> already has a few. Adding one more isn't hard.
>
> It should be noted that the first thing apt-panopticon does is to check
> pkgmaster for changes, which wont use any extra bandwidth running on
> pkgmaster. Apt-panopticon is built to keep it's bandwidth needs low,
> mostly by picking out the smallest test packages to download from the
> mirrors, and only doing some downloads when things change.
>
> apt-panopticon is written in Lua / LuaJIT, which is not currently
> installed on pkgmaster. May need some rrd packages as well.
>
> --
> A big old stinking pile of genius that no one wants
> coz there are too many silver coated monkeys in the world.
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