Where do you look when Kubernetes is healthy but requests stall?
In cloud-native operations, few scenarios are as maddening as the “phantom slowdown.” This happens when Grafana or Kubernetes dashboards show The post Where do you look when Kubernetes is healthy but requests stall? appeared first on The New Stack .
When Kubernetes clusters appear healthy but user requests experience severe latency, it can be puzzling. Despite all pods running smoothly and probes returning success, the actual performance issues may lie elsewhere in the hybrid infrastructure. To unravel these intermittent slowdowns, Mahesh Ramachandran, HPE OpsRamp's product manager, emphasizes the importance of continuous telemetry and retrospective analysis.
Basic Kubernetes probes—liveness and readiness—only indicate whether a container is alive or ready to accept traffic, but they don't guarantee optimal user experience. Engineering teams must dig deeper into telemetry data spanning multiple layers of the stack, including nodes, pods, ingress controllers, services, and external dependencies like SaaS endpoints or public cloud AI models.
This holistic approach allows identifying subtle variations in signals that correlate with user-reported slowness.
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