PrometheusErrorSendingAlertsToAnyAlertmanager # Meaning # Prometheus has encountered errors sending alerts to a any Alertmanager. Impact # All alerts may be lost. Diagnosis # Check connectivity issues between Prometheus and AlertManager cluster. Check NetworkPolicies, network saturation. Check if AlertManager is not overloaded or has not enough resources. Mitigation # Set multiple AlertManager instances, spread them across nodes.
