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Description of problem:
On running the yum update command on the RHEL instance I am seeing an issue which is as follows:

[root@ip-10-0-0-242 ~]# yum update -y
Loaded plugins: amazon-id, rhui-lb, search-disabled-repos
Could not contact any CDS load balancers: https://rhui3.us-east-1.aws.ce.redhat.com/pulp/content/.

Not sure of the exact cause of the problem but I see no similar issue reported in the recent past for RHEL. I have created this instance on AWS with AMI Id:ami-011b3ccf1bd6db744.

Version-Release number of selected component (if applicable):
"Red Hat Enterprise Linux Server 7.6 (Maipo)"

How reproducible:
yum update -y

Steps to Reproduce:
1.yum update -y

Actual results:
Could not contact any CDS load balancers: https://rhui3.us-east-1.aws.ce.redhat.com/pulp/content/.

Expected results:
No error

I tried to investigate the issue and I searched for the string `Could not contact any CDS load balancers:` and it looks like that there are multiple hints with it. I suggest that `Could not contact any CDS load balancers:` is related to amazon-id or rhui-lb plugin but I cannot prove it.

Basically the issue looks like an infrastructure issue when some parts of infrastructure are not accessible. I am changing the component but I am not 100% sure whether I picked the correct one.

After evaluating this issue, there are no plans to address it further or fix it in an upcoming release.  Therefore, it is being closed.  If plans change such that this issue will be fixed in an upcoming release, then the bug can be reopened.