We recently upgraded our kubernetes control plane from version 1.13 to 1.16
After doing that, we started seeing 0 (zero) response codes on the
prometheus reporting dashboard for WATCH operations against the apiserver.
The metric we're using is
sum(rate(apiserver_request_count{code!~"^2.*$"}[1m])) by (code, resource,
subresource, verb)
I tried searching for any clue of what might be the cause and the only one
I found is https://github.com/kubernetes/kubernetes/issues/16686
Is it something we should be worried about or is it just a nuance of the
new apiserver?
Thanks for any help!
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