[RHUI 3] yum commands on clients fails with "Error: requested datatype primary not available"

Issue

• When running yum commanda on the clients registered to RHUA server, it fails with the following error.

[root@client ~]# yum repolist
Loaded plugins: product-id, search-disabled-repos
rhui-rhel-7-server-rhui-rpms                                                                                                | 1.3 kB  00:00:00
(1/2): rhui-rhel-7-server-rhui-rpms/7Server/x86_64/group                                                                    | 631 kB  00:00:00
(2/2): rhui-rhel-7-server-rhui-rpms/7Server/x86_64/updateinfo                                                               | 4.0 MB  00:00:00
Error: requested datatype primary not available