title: hadoop new version - HDP-2.6.3.0 failed because unnecessary repo file
body: <p>we are trying to install the new hadoop version HDP version as scratch installation on our redhat machines ( redhat 7.3 version)</p>
  
  <pre><code>HDP-2.6.3.0-centos7-rpm.tar.gz
  ambari-2.6.0.0-centos7.tar.gz
  </code></pre>
  
  <p>before installing the new HDP version , our current HDP repository is ( under /etc/yum.repo.d )</p>
  
  <p>so regarding that we have already exising HDP reposoitory , we asume that hadoop installation will use this repo for installation</p>
  
  <p>example of out HDP repo ( master02 is the ambari server machine )</p>
  
  <pre><code>more HDP.repo
  [HDP-2.6]
  name=HDP-2.6
  baseurl=http://master02.sys56.com/HDP/centos7/2.6.3.0-235
  
  path=/
  enabled=1
  gpgcheck=0
  </code></pre>
  
  <p>but during HDP-2.6.3.0 installation ( blueprint installation ) , we saw very strange thing.....</p>
  
  <p>in spite we already have HDP repository</p>
  
  <p>blueprint installation push another repo file: ( under /etc/yum.rep.d )</p>
  
  <p>as the following:</p>
  
  <pre><code>more ambari-hdp-1.repo ( this repo not created on the previos version )
  
  [HDP-2.6-repo-1]
  name=HDP-2.6-repo-1
  baseurl=http://public-repo-1.hortonworks.com/HDP/centos7/2.x/updates/2.6.0.3
  
  
  path=/
  enabled=1
  gpgcheck=0
  [HDP-UTILS-1.1.0.21-repo-1]
  name=HDP-UTILS-1.1.0.21-repo-1
  baseurl=http://public-repo-1.hortonworks.com/HDP-UTILS-1.1.0.21/repos/centos7
  
  
  path=/
  enabled=1
  gpgcheck=0
  </code></pre>
  
  <p><strong>the question is why ?</strong> </p>
  
  <p>I ask this because this new repo corrupted the blueprint installation </p>