Error: "Cannot retrieve repository metadata (repomd.xml) for repository: HDP-2.3. Please verify its path and try again"

[#1]

when I try to use yum to update or install some packages, I get this error. .

"http://public-repo-1.hortonworks.com/HDP/centos6/2.x/updates/2.3.2.0/repodata/repomd.xml: [Errno 14] PYCURL ERROR 7 - "couldn't connect to host" Trying other mirror. Error: Cannot retrieve repository metadata (repomd.xml) for repository: HDP-2.3. Please verify its path and try again"

I am working on HDP 2.3.4 Sandbox deployed on a CentOS 6 server which is behind the proxy. The server has internet access. I can ping google.com , for example.

the contents of /etc/yum.repos.d looks like this:

Any workaround regarding this issue would be highly appreciated!

[#2]

@Neeraj Sabharwal

I did a fresh install of Hortonworks sandbox (HDP 2.3.2, Windows 7) and get the same errors as @Kibrom Gebrehiwot.

I do not have firewall on (service iptables status says Firewall is not running). ipconfig has no errors.

My resolv.config reads

nameserver 8.8.8.8

Every setting is identical to yours (from your attachments on previous comments).

Can there be another source of error?

[#3]

@Kibrom Gebrehiwot

@min roh

You are correct.

I had to move ambari.repo and HDP*.repo to different locations.

dig failed, I restarted network and dig worked.

[#4]

@Kibrom Gebrehiwot

@min roh

See this

I copied the repo files from ns01 to ns02 but it still failed. I noticed that dig url did not work

See the following screenshot.

dig failed, I restarted network and dig worked.

[#5]

yum repolist worked

[#6]

@Neeraj Sabharwal I followed the command you used to restart the network but it did not work for me. I am still getting the same error.

[#7]

@min roh

/etc/init.d/network restart

then yum repolist

Can you try again?

[#8 · Accepted solution]

@Neeraj Sabharwal

Resolved: The problem was related to proxy Authentication. So, I installed and configured CNTLM to access ISA Proxy Server on Centos 6.

Look at the article :

http://wingloon.com/2014/04/11/how-to-install-and-configure-cntlm-to-access-isa-server-on-centos-6-5...

1.Install and configure cntlm

2. configure yum to use through ISA Proxy

• vi /etc/yum.conf

add a line:

proxy=http://127.0.0.1:3128/

• vi .bash_profile

add :

export http_proxy=http://localhost:3128/

export https_proxy=${http_proxy}

export ftp_proxy=${http_proxy}

• logoff root and login again
• yum clean all
• yum install XXXX

yum update, yum repolist or yum install now works fine

[#9]

@Kibrom Gebrehiwot Thank you so much for the final update. I have converted your comment to an answer and accepted it as best answer

[#10]

@Neeraj Sabharwal Hello,

I still am unable to add a node to a cluster.

I have attached the log files here : ambari-log.txt

hdp-repo.txt

ambari-repo.txt

yum-repolist-2.png

The solution above did not work for me.

[#11]

Can you please elaborate, on what are these configurations supposed to be?

Username your.nt.username
Domain your.domain
Proxy your.isa.server.name:your.isa.server.port
Listen 3128