[CentOS-mirror] particular mirror question

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.