On Tue, Apr 4, 2017 at 11:56 PM, Ken Dreyer <kdreyer(a)redhat.com> wrote:
 Sorry for the topic hijacking :) ...is "buildlogs" really a
CDN? I
 thought it was just a single web server. 
RPM files are redirected to a donated CDN77 network
https://lists.centos.org/pipermail/centos-devel/2016-March/014552.html
You can confirm that with wget (for fun, try it from machines around the world):
$ wget -S
https://buildlogs.centos.org/centos/7/cloud/x86_64/openstack-ocata/common...
...
Connecting to 
buildlogs.centos.org
(buildlogs.centos.org)|162.252.80.138|:443... connected.
  HTTP/1.1 302 Found
  Date: Tue, 04 Apr 2017 22:14:48 GMT
  Server: Apache/2.4.6 (CentOS) OpenSSL/1.0.1e-fips
  Location:
https://buildlogs.cdn.centos.org/centos/7/cloud/x86_64/openstack-ocata/co...
...
Connecting to 
buildlogs.cdn.centos.org
(buildlogs.cdn.centos.org)|185.59.222.12|:443... connected.
  HTTP/1.1 200 OK
  Date: Tue, 04 Apr 2017 22:14:48 GMT
  Content-Type: application/x-rpm
  Content-Length: 17752
  Connection: keep-alive
  Last-Modified: Wed, 22 Mar 2017 14:49:23 GMT
  ETag: "4558-54b52ddbb62c0"
  Server: CDN77-Turbo
  X-Edge-IP: 185.59.222.10
  X-Edge-Location: amsterdamNL
  X-Cache: MISS
  Accept-Ranges: bytes
YUM repodata are served from original single web server.
 I'm curious whether it's ok to put a lot of load on
 
buildlogs.centos.org with many CI nodes? 
If CI nodes are inside 
ci.centos.org they are using internal buildlogs server.
If you mean some other CI external nodes, check with centos infra
team, I'm not sure what kind of deal they have with CDN77.
Alan