Soution: yum update failed with error, "Not using downloaded repomd.xml because it is older than what we have"

SYMPTOM:

yum update failed with error, 'Not using downloaded repomd.xml because it is older than what we have'

  Loaded plugins: security

  Setting up Update Process

  base                                                     | 3.7 kB     00:00

  Not using downloaded repomd.xml because it is older than what we have:

    Current   : Fri Mar  4 23:01:31 2016

    Downloaded: Wed Aug  5 05:24:45 2015

AFFECTED OS:

• RHEL 6
• CentOS 6

SOLUTION:

1. Login as root

2. Verify the RHEL/ CentOS is the latest version ---> rpm -q centos-release
     centos-release-6-7.el6.centos.12.3.x86_64

3. yum clean all

    Loaded plugins: security
    Cleaning repos: base epel extras openlogic updates
    Cleaning up Everything

4. yum update