On a 4.4.0.rc8 cluster, after 72 hours post-install the kubelet on master-0 stopped reporting back. Resulting in the node reporting NodeStatusUnknown and the node going NotReady. Nothing was happening on this cluster over the weekend, and very little had been touched on it from an OOTB AWS installation. I believe the only changes were to configure an alert manager receiver.
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.