PR submitted upstream: https://github.com/prometheus/prometheus/pull/8015
tested with 4.7.0-0.nightly-2020-10-21-001511, prometheus version is 2.22.0 now # oc -n openshift-monitoring logs -c prometheus prometheus-k8s-0 level=info ts=2020-10-21T23:42:21.672Z caller=main.go:353 msg="Starting Prometheus" version="(version=2.22.0, branch=rhaos-4.7-rhel-8, revision=6602cbd5e87109bfb6165c29b39f39024168667c)" level=info ts=2020-10-21T23:42:21.673Z caller=main.go:358 build_context="(go=go1.15.0, user=root@1fde91b90149, date=20201020-18:30:08)" level=info ts=2020-10-21T23:42:21.673Z caller=main.go:359 host_details="(Linux 4.18.0-193.28.1.el8_2.x86_64 #1 SMP Fri Oct 16 13:38:49 EDT 2020 x86_64 prometheus-k8s-0 (none))" level=info ts=2020-10-21T23:42:21.673Z caller=main.go:360 fd_limits="(soft=1048576, hard=1048576)" level=info ts=2020-10-21T23:42:21.673Z caller=main.go:361 vm_limits="(soft=unlimited, hard=unlimited)" ...
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory (Moderate: OpenShift Container Platform 4.7.0 security, bug fix, and enhancement update), and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHSA-2020:5633