Sometimes the prometheus-operator's informer will be stuck because it receives objects that can't be converted to *v1.PartialObjectMetadata.

    4.15

    Not always

    1. Unknown
    2.
    3.
    

    prometheus-operator logs show errors like

2024-02-09T08:29:35.478550608Z level=warn ts=2024-02-09T08:29:35.478491797Z caller=klog.go:108 component=k8s_client_runtime func=Warningf msg="github.com/coreos/prometheus-operator/pkg/informers/informers.go:110: failed to list *v1.PartialObjectMetadata: Get \"https://172.30.0.1:443/api/v1/secrets?resourceVersion=29022\": dial tcp 172.30.0.1:443: connect: connection refused"
2024-02-09T08:29:35.478592909Z level=error ts=2024-02-09T08:29:35.478541608Z caller=klog.go:116 component=k8s_client_runtime func=ErrorDepth msg="github.com/coreos/prometheus-operator/pkg/informers/informers.go:110: Failed to watch *v1.PartialObjectMetadata: failed to list *v1.PartialObjectMetadata: Get \"https://172.30.0.1:443/api/v1/secrets?resourceVersion=29022\": dial tcp 172.30.0.1:443: connect: connection refused"

    No error

    The bug has been introduced in v0.70.0 by https://github.com/prometheus-operator/prometheus-operator/pull/5993 so it only affects 4.16 and 4.15.