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Remove percentage numbers from SLIs
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corvus-ch committed Nov 8, 2023
1 parent 9b1e7b8 commit a924023
Showing 1 changed file with 6 additions and 6 deletions.
12 changes: 6 additions & 6 deletions docs/modules/ROOT/pages/explanations/slis.adoc
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Expand Up @@ -15,7 +15,7 @@ If the workloads running on the cluster aren't accessible, it might as well be d
=== Canary

****
*99.75% of all HTTP probes to a canary application succeed*
*HTTP probes to a canary application*
****

Probes are sent every minute from the ingress operator, inside the cluster, to the external address of the canary target.
Expand Down Expand Up @@ -72,7 +72,7 @@ A misbehaving Kubernetes API directly impacts the service level.
=== Request Error Rate

****
*99.9% of all requests to the Kubernetes API server succeed or are invalid*
*Requests to the Kubernetes API server succeed or are invalid*
****

This is measured directly at the API server through the following metrics.
Expand All @@ -92,7 +92,7 @@ NOTE: We only look for HTTP 5xx errors, which indicate a server side error, and
=== Uptime

****
*99.9% of all HTTP probes to the Kubernetes API server succeed*
*HTTP probes to the Kubernetes API server succeed*
****

Probes are sent every 10 seconds from a blackbox exporter inside the cluster to the readiness endpoint of the Kubernetes API server.
Expand All @@ -109,7 +109,7 @@ This ability is essential and directly impacts the service level.
=== Canary

****
*99.75% of canary pods start successfully*
*Canary pods start successfully*
****

A controller starts a known good canary pod every minute and checks if it successfully started after 3 minutes.
Expand All @@ -125,7 +125,7 @@ Any storage issues directly impacts the service level for users.
=== CSI Operations

****
*99.5% of all CSI operations complete successfully*
*CSI operations complete successfully*
****

CSI operations are any interactions of the kubelet or controller-manager with the CSI provider.
Expand Down Expand Up @@ -156,7 +156,7 @@ Without it, users can't reliably access their workload and even moderate packet
=== Packet Loss

****
*99.5% of all ICMP pings between canary pods succeed*
*ICMP pings between canary pods succeed*
****

A network canary daemonset starts a canary pod on every node.
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