[CentOS-mirror] particular mirror question
Anssi Johansson
avij at centosproject.org
Sun Sep 17 07:44:58 UTC 2017
Anssi Johansson kirjoitti 17.9.2017 klo 0.51:
> Valeri Galtsev kirjoitti 15.9.2017 klo 20.53:
>> Dear All,
>>
>> I have a couple of questions about one specific mirror:
>>
>> http://lug.mtu.edu
>>
>> Today I have multitude "package not found" errors for that mirror when
>> updates are run on my machines. (Up to you giving up and going to
>> different mirror). I am reluctant to point all my machines to our public
>> mirror I maintain (I don't know why, maybe I am just lazy), and rely on
>> fastestmirror plugin. And this keeps happening even though mirror has OK
>> status on mirror status page:
>>
>> http://mirror-status.centos.org/
>>
>>
>> My questions are:
>>
>> 1. does someone have a guess why that may be happening to me?
>>
>> 2. As my wild guess is: either that mirror starts throttling clients
>> badly
>> after some amount of data, or there is some other similar reason why some
>> stuff appears inaccessible to clients. So: could someone contact mirror
>> maintainer with the question why someone has these problems. I am coming
>> from domain uchicago.edu (specifically from the following IP blocks:
>> 128.135.4.0/24, 128.135.52.0/24, 128.135.20.0/25). Or: how can I find out
>> who the maintainer of that mirror is (I will contact the maintainer
>> myself
>> then)?
>
> I noticed that http://lug.mtu.edu/centos/ redirects to
> http://mirrors.lug.mtu.edu/centos/ and I've now adjusted the mirror
> database to have the latter link. This avoids a redirect for each
> request, helping with any possible rate limits there might be.
>
> As you said, mirror monitoring does not show any problems, so I tested
> the mirror myself by setting up a CentOS 7.3.1611 instance at UpCloud.
> By coincidence they have a data center in Chicago, so I got to test this
> from a host close to you. Obviously the routing will be different.
>
> And at this point I found out that their
> http://mirrors.lug.mtu.edu/centos/7.4.1708/os/x86_64/ directory does not
> have a Packages subdirectory, and the same goes for the updates
> directory http://mirrors.lug.mtu.edu/centos/7.4.1708/updates/x86_64/
>
> Those directories do have up-to-date repodata directories, and those are
> checked by the mirror checking scripts, along with the timestamps in the
> root directory and some files in the isos directory. The packages
> themselves are not checked. The timestamps seem to get updated properly,
> so there's something odd going on with their syncs.
>
> I have now temporarily excluded this mirror from the mirrorlists until
> this issue gets resolved. I'll try contacting the mirror admins
> directly. Thanks for the heads up.
Looks like this has now been fixed. I have now re-enabled this mirror
for the mirrorlists.
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