This is related to https://bugzilla.redhat.com/show_bug.cgi?id=1794616, but not optimizing the payload size, but we have to also bump the transfer limit for telemeter client.
Otherwise, larger clusters will still fail to send telemetry data.
Tested with 4.5.0-0.ci-2020-02-28-043432, limit-bytes is now 5Mb
# oc -n openshift-monitoring get deploy/telemeter-client -oyaml | grep "\- --limit-bytes"
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, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.