The mirror content checker failed to locate the Ubuntu mirror files which is reachable

[Ren Zhihao]

Our Ubuntu mirror is reachable and I confirm that all the details about our mirror are correct.
But the mirror content checker failed to locate the Ubuntu mirror files which is reachable.

Here is the log file:

Fri Jun 15 00:28:17 2018: Failed http://mirrors.huaweicloud.com/repository/ubuntu-releases/artful/ubuntu-17.10.1-desktop-amd64.iso: HEAD request on http://mirrors.huaweicloud.com/repository/ubuntu-releases/artful/ubuntu-17.10.1-desktop-amd64.iso took longer than 30 seconds Fri Jun 15 00:28:17 2018: Failed http://mirrors.huaweicloud.com/repository/ubuntu-releases/artful/ubuntu-17.10.1-server-amd64.iso: HEAD request on http://mirrors.huaweicloud.com/repository/ubuntu-releases/artful/ubuntu-17.10.1-server-amd64.iso took longer than 30 seconds Fri Jun 15 00:28:47 2018: Failed http://mirrors.huaweicloud.com/repository/ubuntu-releases/artful/ubuntu-17.10.1-server-i386.iso: HEAD request on http://mirrors.huaweicloud.com/repository/ubuntu-releases/artful/ubuntu-17.10.1-server-i386.iso took longer than 30 seconds Fri Jun 15 00:28:47 2018: Failed http://mirrors.huaweicloud.com/repository/ubuntu-releases/bionic/ubuntu-18.04-desktop-amd64.iso: HEAD request on http://mirrors.huaweicloud.com/repository/ubuntu-releases/bionic/ubuntu-18.04-desktop-amd64.iso took longer than 30 seconds Fri Jun 15 00:29:17 2018: Failed http://mirrors.huaweicloud.com/repository/ubuntu-releases/bionic/ubuntu-18.04-live-server-amd64.iso: HEAD request on http://mirrors.huaweicloud.com/repository/ubuntu-releases/bionic/ubuntu-18.04-live-server-amd64.iso took longer than 30 seconds Fri Jun 15 00:29:17 2018: Failed http://mirrors.huaweicloud.com/repository/ubuntu-releases/precise/ubuntu-12.04.5-alternate-amd64.iso: HEAD request on http://mirrors.huaweicloud.com/repository/ubuntu-releases/precise/ubuntu-12.04.5-alternate-amd64.iso took longer than 30 seconds Fri Jun 15 00:29:47 2018: Failed http://mirrors.huaweicloud.com/repository/ubuntu-releases/precise/ubuntu-12.04.5-alternate-i386.iso: HEAD request on http://mirrors.huaweicloud.com/repository/ubuntu-releases/precise/ubuntu-12.04.5-alternate-i386.iso took longer than 30 seconds Fri Jun 15 00:29:47 2018: Failed http://mirrors.huaweicloud.com/repository/ubuntu-releases/precise/ubuntu-12.04.5-desktop-amd64.iso: HEAD request on http://mirrors.huaweicloud.com/repository/ubuntu-releases/precise/ubuntu-12.04.5-desktop-amd64.iso took longer than 30 seconds Fri Jun 15 00:30:17 2018: Failed http://mirrors.huaweicloud.com/repository/ubuntu-releases/precise/ubuntu-12.04.5-desktop-i386.iso: HEAD request on http://mirrors.huaweicloud.com/repository/ubuntu-releases/precise/ubuntu-12.04.5-desktop-i386.iso took longer than 30 seconds Fri Jun 15 00:30:17 2018: Failed http://mirrors.huaweicloud.com/repository/ubuntu-releases/precise/ubuntu-12.04.5-server-amd64.iso: HEAD request on http://mirrors.huaweicloud.com/repository/ubuntu-releases/precise/ubuntu-12.04.5-server-amd64.iso took longer than 30 seconds Fri Jun 15 00:30:47 2018: Failed http://mirrors.huaweicloud.com/repository/ubuntu-releases/precise/ubuntu-12.04.5-server-i386.iso: HEAD request on http://mirrors.huaweicloud.com/repository/ubuntu-releases/precise/ubuntu-12.04.5-server-i386.iso took longer than 30 seconds Fri Jun 15 00:30:47 2018: Failed http://mirrors.huaweicloud.com/repository/ubuntu-releases/trusty/ubuntu-14.04.5-desktop-amd64.iso: HEAD request on http://mirrors.huaweicloud.com/repository/ubuntu-releases/trusty/ubuntu-14.04.5-desktop-amd64.iso took longer than 30 seconds Fri Jun 15 00:31:17 2018: Failed http://mirrors.huaweicloud.com/repository/ubuntu-releases/trusty/ubuntu-14.04.5-desktop-i386.iso: HEAD request on http://mirrors.huaweicloud.com/repository/ubuntu-releases/trusty/ubuntu-14.04.5-desktop-i386.iso took longer than 30 seconds Fri Jun 15 00:31:17 2018: Failed http://mirrors.huaweicloud.com/repository/ubuntu-releases/trusty/ubuntu-14.04.5-server-amd64.iso: HEAD request on http://mirrors.huaweicloud.com/repository/ubuntu-releases/trusty/ubuntu-14.04.5-server-amd64.iso took longer than 30 seconds Fri Jun 15 00:31:47 2018: Failed http://mirrors.huaweicloud.com/repository/ubuntu-releases/trusty/ubuntu-14.04.5-server-i386.iso: HEAD request on http://mirrors.huaweicloud.com/repository/ubuntu-releases/trusty/ubuntu-14.04.5-server-i386.iso took longer than 30 seconds Fri Jun 15 00:31:47 2018: Failed http://mirrors.huaweicloud.com/repository/ubuntu-releases/xenial/ubuntu-16.04.4-desktop-amd64.iso: HEAD request on http://mirrors.huaweicloud.com/repository/ubuntu-releases/xenial/ubuntu-16.04.4-desktop-amd64.iso took longer than 30 seconds Fri Jun 15 00:32:17 2018: Failed http://mirrors.huaweicloud.com/repository/ubuntu-releases/xenial/ubuntu-16.04.4-desktop-i386.iso: HEAD request on http://mirrors.huaweicloud.com/repository/ubuntu-releases/xenial/ubuntu-16.04.4-desktop-i386.iso took longer than 30 seconds Fri Jun 15 00:32:17 2018: Failed http://mirrors.huaweicloud.com/repository/ubuntu-releases/xenial/ubuntu-16.04.4-server-amd64.iso: HEAD request on http://mirrors.huaweicloud.com/repository/ubuntu-releases/xenial/ubuntu-16.04.4-server-amd64.iso took longer than 30 seconds Fri Jun 15 00:32:47 2018: Failed http://mirrors.huaweicloud.com/repository/ubuntu-releases/xenial/ubuntu-16.04.4-server-i386.iso: HEAD request on http://mirrors.huaweicloud.com/repository/ubuntu-releases/xenial/ubuntu-16.04.4-server-i386.iso took longer than 30 seconds