question Re: Unable to install Ambari server and agent in Support Questions

Unable to install Ambari server and agent

pchaudhari — Tue, 12 Sep 2017 17:50:57 GMT

Re: Unable to install Ambari server and agent

jsensharma — Tue, 12 Sep 2017 17:58:45 GMT

Can you please check if your "/etc/yum.repos.d/ambari.repo" file has "enabled=1" value as following:

wget -nv http://public-repo-1.hortonworks.com/ambari/centos6/2.x/updates/2.5.2.0/ambari.repo -O /etc/yum.repos.d/ambari.repo

# cat /tmp/ambari.repo 
    #VERSION_NUMBER=2.5.2.0-298
    [ambari-2.5.2.0]
    name=ambari Version - ambari-2.5.2.0
    baseurl=http://public-repo-1.hortonworks.com/ambari/centos6/2.x/updates/2.5.2.0
    gpgcheck=1
    gpgkey=http://public-repo-1.hortonworks.com/ambari/centos6/2.x/updates/2.5.2.0/RPM-GPG-KEY/RPM-GPG-KEY-Jenkins
    enabled=1
    priority=1

Also please do a yum clean all and then try again, and please check the repo access from your host.

# yum clean all

Re: Unable to install Ambari server and agent

jsensharma — Tue, 12 Sep 2017 18:06:38 GMT

@Prashant Chaudhuri

Additionally in order to isolate any proxy issue please check if you are able to access the "repomd.xml" file from the ambari repo?

# wget -nv http://public-repo-1.hortonworks.com/ambari/centos6/2.x/updates/2.5.2.0/repodata/repomd.xml

Also check the "/etc/yum.conf" if any proxy is defined there? Or if you need any?

# grep 'proxy' /etc/yum.conf

Re: Unable to install Ambari server and agent

pchaudhari — Tue, 12 Sep 2017 18:09:33 GMT

Thanks for your quick response.

* I checked "/etc/yum.repos.d/ambari.repo" and it does have enabled flag = 1. However I do not have any ambari.repo file in /tmp.

* I did "yum clean all", checked ambari appears in repolist and ran "yum install ambari-server", but still the same failure.

Re: Unable to install Ambari server and agent

Shelton — Tue, 12 Sep 2017 18:21:49 GMT

@Prashant Chaudhuri

Can you paste the contents of your. The /tmp/ambari.repo was just a typo error it should have been cat /etc/yum.repos.d/ambari.repo

# cat /etc/yum.repos.d/ambari.repo

# cat /etc/yum.repos.d/hdp.repo

Clean all the cached files from any enabled repository at once

yum clean all

Check the repolist

yum repolist

The retry the

yum install -y ambari-server

Re: Unable to install Ambari server and agent

jsensharma — Tue, 12 Sep 2017 18:22:13 GMT

@Prashant Chaudhuri

The path "/tmp/ambari.repo" was example path. The correct path should be :

# cat /etc/yum.repos.d/ambari.repo

Re: Unable to install Ambari server and agent

pchaudhari — Tue, 12 Sep 2017 18:58:22 GMT

Thanks for your response Geoffrey.

cat /etc/yum.repos.d/ambari.repo

#VERSION_NUMBER=2.5.2.0-298
[ambari-2.5.2.0]
name=ambari Version - ambari-2.5.2.0
baseurl=http://public-repo-1.hortonworks.com/ambari/centos6/2.x/updates/2.5.2.0
gpgcheck=1
gpgkey=http://public-repo-1.hortonworks.com/ambari/centos6/2.x/updates/2.5.2.0/RPM-GPG-KEY/RPM-GPG-KEY-Jenkins
enabled=1
priority=1

I do not have HDP repo downloaded, hence I simply get following for hdp repository:

cat: /etc/yum.repos.d/hdp.repo: No such file or directory

After doing yum clean all and checking yum repolist (output of it below); I'm still getting message "No package ambari-server available.

# yum repolist
Loaded plugins: fastestmirror, security
Determining fastest mirrors
 * base: centos-hcm.viettelidc.com.vn
 * extras: mirrors.nhanhoa.com
 * updates: mirrors.nhanhoa.com
ambari-2.5.2.0                                           | 2.9 kB     00:00
ambari-2.5.2.0/primary_db                                | 8.6 kB     00:00
base                                                     | 3.7 kB     00:00
base/primary_db                                          | 3.7 MB     00:07
extras                                                   | 3.3 kB     00:00
extras/primary_db                                        |  21 kB     00:00
updates                                                  | 3.4 kB     00:00
updates/primary_db                                       | 3.0 MB     00:07
repo id                     repo name                                     status
ambari-2.5.2.0              ambari Version - ambari-2.5.2.0                  12
base                        CentOS-6 - Base                               5,079
extras                      CentOS-6 - Extras                                20
updates                     CentOS-6 - Updates                              485
repolist: 5,596

# yum install -y ambari-server
Loaded plugins: fastestmirror, security
Setting up Install Process
Loading mirror speeds from cached hostfile
 * base: centos-hcm.viettelidc.com.vn
 * extras: mirrors.nhanhoa.com
 * updates: mirrors.nhanhoa.com
No package ambari-server available.
Error: Nothing to do

Re: Unable to install Ambari server and agent

pchaudhari — Tue, 12 Sep 2017 19:50:04 GMT

wget command works fine and downloads repomd.xml.

grep for 'proxy' returns nothing.

Actually I'm working from home, so usual corporate network restrictions do not apply in my case.

Re: Unable to install Ambari server and agent

Shelton — Tue, 12 Sep 2017 19:59:38 GMT

@Prashant Chaudhuri

Can you confirm your ain't behind a proxy?

Just click this link to validate http://amibehindaproxy.com/

Re: Unable to install Ambari server and agent

pchaudhari — Tue, 12 Sep 2017 20:10:41 GMT

No. The link confirms "No Proxy server detected".

Also re-checked my connection and found it's ok; but still the same result.

Re: Unable to install Ambari server and agent

Shelton — Tue, 12 Sep 2017 20:30:53 GMT

Bizarre, can you post the content of

# cat /etc/resolv.conf

The rerun the below

# yum clean all 
# yum clean metadata

Then

#  yum install -y ambari-server

Let me know

Re: Unable to install Ambari server and agent

pchaudhari — Tue, 12 Sep 2017 20:42:33 GMT

# cat /etc/resolv.conf
; generated by /sbin/dhclient-script
search domain.name pc.com
nameserver 192.168.1.1

domain name above is dummy one and nameserver IP is actually that of my router. could that be a problem? But... I remember having worked in similar setup in past, though long back.

# yum clean all
Loaded plugins: fastestmirror, security
Cleaning repos: ambari-2.5.2.0 base extras updates
Cleaning up Everything
Cleaning up list of fastest mirror

# yum clean metadata
Loaded plugins: fastestmirror, security
Cleaning repos: ambari-2.5.2.0 base extras updates
0 metadata files removed
0 sqlite files removed
0 metadata files removed

yum install -y ambari-server
Loaded plugins: fastestmirror, security
Setting up Install Process
Determining fastest mirrors
 * base: mirrors.viethosting.com
 * extras: mirror.digistar.vn
 * updates: mirrors.vinahost.vn
ambari-2.5.2.0                                           | 2.9 kB     00:00
ambari-2.5.2.0/primary_db                                | 8.6 kB     00:00
base                                                     | 3.7 kB     00:00
base/primary_db                                          | 3.7 MB     00:15
extras                                                   | 3.3 kB     00:00
extras/primary_db                                        |  21 kB     00:00
updates                                                  | 3.4 kB     00:00
updates/primary_db                                       | 3.0 MB     00:25
No package ambari-server available.
Error: Nothing to do

Re: Unable to install Ambari server and agent

Shelton — Tue, 12 Sep 2017 20:52:14 GMT

@Prashant Chaudhuri

Can you edit your resolv.conf and add the 2 names server before your router like this

nameserver 8.8.8.8 
nameserver 8.8.4.4 
nameserver 192.168.1.1

he rerun the below

# yum clean all 
# yum clean metadata

Then

#  yum install -y ambari-server

And revert

Re: Unable to install Ambari server and agent

pchaudhari — Tue, 12 Sep 2017 21:21:52 GMT

changed resolv.conf and tried above commands. Still no success.

Re: Unable to install Ambari server and agent

Shelton — Tue, 12 Sep 2017 21:42:01 GMT

@Prashant Chaudhuri

Can you add the below line in /etc/yum.conf

http_caching=packages

The re-run the previous commands

Re: Unable to install Ambari server and agent

pchaudhari — Tue, 12 Sep 2017 21:49:27 GMT

Thanks. Done, but no success yet.

Re: Unable to install Ambari server and agent

pchaudhari — Wed, 13 Sep 2017 11:49:03 GMT

Just to filter possibility of any issues with the setup of that particular instance of Centos, I tried installing on another instance as well, but it still fails.

Also to nullify any connection issues, I tried curl on the GPG key from ambari.repo - it works fine and downloads the key.

Surprise.. Surprise.. I just tried Ambari 2.0.0 installation and it works fine.. So it may be problem with Ambari 2.5.2.0 (In fact entire 2.x I think) repository.

Re: Unable to install Ambari server and agent

Bhavin — Fri, 06 Oct 2017 15:52:52 GMT

+1 2.5.2.0 version has the problem. 2.5.1.0 version works fine.

Re: Unable to install Ambari server and agent

pradheep86 — Fri, 13 Oct 2017 03:51:32 GMT

is there a solution to this issue?

Re: Unable to install Ambari server and agent

Bhavin — Fri, 13 Oct 2017 07:38:36 GMT

please correct the repo file path. 2.5.2.0 also works fine with corrected path. Observer ppc in the path correct it for ambari. Than you should be good. I have done this for RHEL 7.