add networking slis for services #8142
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sig/scalability
Change-Id: Ic650446ab8d7e508c7fcf95a0db0c0b310db04a0
ArvindParekh
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Nov 9, 2024
| @@ -122,6 +122,9 @@ __TODO: Cluster churn should be moved to scalability thresholds.__ | |||
| | __WIP__ | Latency of programming dns instance, measured from when service spec or list of its `Ready` pods change to when it is reflected in that dns instance, measured as 99th percentile over last 5 minutes aggregated across all dns instances | In default Kubernetes installation, 99th percentile per cluster-day<sup>[1](#footnote1)</sup> <= X | [Details](./dns_programming_latency.md) | | |||
| | __WIP__ | In-cluster network latency from a single prober pod, measured as latency of per second ping from that pod to "null service", measured as 99th percentile over last 5 minutes. | In default Kubernetes installataion with RTT between nodes <= Y, 99th percentile of (99th percentile over all prober pods) per cluster-day<sup>[1](#footnote1)</sup> <= X | [Details](./network_latency.md) | | |||
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| | __WIP__ | In-cluster network latency from a single prober pod, measured as latency of per second ping from that pod to "null service", measured as 99th percentile over last 5 minutes. | In default Kubernetes installataion with RTT between nodes <= Y, 99th percentile of (99th percentile over all prober pods) per cluster-day<sup>[1](#footnote1)</sup> <= X | [Details](./network_latency.md) | | |
| | __WIP__ | In-cluster network latency from a single prober pod, measured as latency of per second ping from that pod to "null service", measured as 99th percentile over last 5 minutes. | In default Kubernetes installation with RTT between nodes <= Y, 99th percentile of (99th percentile over all prober pods) per cluster-day<sup>[1](#footnote1)</sup> <= X | [Details](./network_latency.md) | |
| @@ -122,6 +122,9 @@ __TODO: Cluster churn should be moved to scalability thresholds.__ | |||
| | __WIP__ | Latency of programming dns instance, measured from when service spec or list of its `Ready` pods change to when it is reflected in that dns instance, measured as 99th percentile over last 5 minutes aggregated across all dns instances | In default Kubernetes installation, 99th percentile per cluster-day<sup>[1](#footnote1)</sup> <= X | [Details](./dns_programming_latency.md) | | |||
| | __WIP__ | In-cluster network latency from a single prober pod, measured as latency of per second ping from that pod to "null service", measured as 99th percentile over last 5 minutes. | In default Kubernetes installataion with RTT between nodes <= Y, 99th percentile of (99th percentile over all prober pods) per cluster-day<sup>[1](#footnote1)</sup> <= X | [Details](./network_latency.md) | | |||
| | __WIP__ | In-cluster dns latency from a single prober pod, measured as latency of per second DNS lookup for "null service" from that pod, measured as 99th percentile over last 5 minutes. | In default Kubernetes installataion with RTT between nodes <= Y, 99th percentile of (99th percentile over all prober pods) per cluster-day<sup>[1](#footnote1)</sup> <= X | [Details](./dns_latency.md) | | |||
There was a problem hiding this comment.
Suggested change
| | __WIP__ | In-cluster dns latency from a single prober pod, measured as latency of per second DNS lookup for "null service" from that pod, measured as 99th percentile over last 5 minutes. | In default Kubernetes installataion with RTT between nodes <= Y, 99th percentile of (99th percentile over all prober pods) per cluster-day<sup>[1](#footnote1)</sup> <= X | [Details](./dns_latency.md) | | |
| | __WIP__ | In-cluster dns latency from a single prober pod, measured as latency of per second DNS lookup for "null service" from that pod, measured as 99th percentile over last 5 minutes. | In default Kubernetes installation with RTT between nodes <= Y, 99th percentile of (99th percentile over all prober pods) per cluster-day<sup>[1](#footnote1)</sup> <= X | [Details](./dns_latency.md) | |
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It is important to define SLIs for Kubernetes services because network performance is a complex to measure, especially in virtualized environments like Kubernetes. Without properly defined SLIs, it can be difficult to understand how well your services are performing.
Establishing clear SLIs enables users to "compare apples with apples" and understand the true performance of their services