Anssi, Thanks for your help. I am not using any proxy, and this problem does not happen on other CentOS mirror server. After yum update with enable URLGRABBER_DEBUG, I found that they are using nginx as the web server of mirror, I am guessing if they are using nginx as a proxy in front of the real server (e.g. Apache), so that everyone connects via their proxy in result. You may check my debug log here: yumdebug.log: https://file.io/ERNhoZ yum command output: https://file.io/QJ48q6 Reproduce the problem can be by below 2 commands easily: ======================================================== cat << _EOF_ > /etc/yum.repos.d/CentOS-Base.repo [base] name=CentOS-$releasever - Base baseurl=http://repo.virtualhosting.hk/centos/7/os/x86_64/ gpgcheck=1 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7 [updates] name=CentOS-$releasever - Updates baseurl=http://repo.virtualhosting.hk/centos/7/os/x86_64/ gpgcheck=1 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7 [extras] name=CentOS-$releasever - Extras baseurl=http://repo.virtualhosting.hk/centos/7/os/x86_64/ gpgcheck=1 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7 [centosplus] name=CentOS-$releasever - Plus baseurl=http://repo.virtualhosting.hk/centos/7/os/x86_64/ gpgcheck=1 enabled=0 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7 _EOF_ URLGRABBER_DEBUG=1,yumdebug.log yum -y update ======================================================== Ming On Thu, 28 Mar 2019 at 09:34, Anssi Johansson <avij at centosproject.org> wrote: > The problem is that I can't reproduce this issue myself. Also note that > if you are using a proxy (see your /etc/yum.conf) it is possible that > the HTTP 503 error comes from your proxy and not from the web server. > > If the issue persists, I would suggest talking to them directly to get > this resolved. The contact details are on > https://www.udomain.hk/?lang=en-US and you can refer to the ticket I > opened with them, #781725. > > This command will output lots of debugging info on the screen, and some > other info to yumdebug.log: > > URLGRABBER_DEBUG=1,yumdebug.log yum update > > Nethub Online - Ming kirjoitti 27.3.2019 klo 17.32: > > Thanks Anssi, > > > > I just test again, but the problem persists, please check output below: > > > > > > # yum -y update > > ... > > Total download size: 172 M > > Downloading packages: > > Delta RPMs disabled because /usr/bin/applydeltarpm not installed. > > acl-2.2.51-14.el7.x86_64.rpm FAILED > > > http://repo.virtualhosting.hk/centos/7/os/x86_64/Packages/acl-2.2.51-14.el7.x86_64.rpm: > > > [Errno 14] HTTP Error 503 - Service Unavailable > > Trying other mirror. > > apr-1.4.8-3.el7_4.1.x86_64.rpm FAILED > > > http://repo.virtualhosting.hk/centos/7/os/x86_64/Packages/apr-1.4.8-3.el7_4.1.x86_64.rpm: > > > [Errno 14] HTTP Error 503 - Service Unavailable > > Trying other mirror. > > (1/269): GeoIP-1.5.0-13.el7.x86_64.rpm | 1.5 MB 00:00:00 > > (2/269): apr-devel-1.4.8-3.el7_4.1.x86_64.rpm | 188 kB 00:00:00 > > > > Ming > > > > > > > I received a notice from the mirror admin saying that they have fixed > > > the problem, so I've now re-enabled the mirror. Hopefully it's OK now. > > > > > > Anssi Johansson kirjoitti 18.3.2019 klo 13.08: > > >> I have now disabled the mirror and sent a notice to the mirror > admins. > > >> If they fix the problem I'll add them again. > > >> > > _______________________________________________ > > CentOS-mirror mailing list > > CentOS-mirror at centos.org > > https://lists.centos.org/mailman/listinfo/centos-mirror > > _______________________________________________ > CentOS-mirror mailing list > CentOS-mirror at centos.org > https://lists.centos.org/mailman/listinfo/centos-mirror > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.centos.org/pipermail/centos-mirror/attachments/20190328/85c75643/attachment-0006.html>