Ingress-nginx

ingress-nginx

Default Alerts

AME Kubernetes comes with a set of default alerts for ingress-nginx. This page serves as a reference for when one of these alerts fires within your cluster. Each alert gives a brief description of what it means, a list of possible causes and suggestions on how to resolve the issue.

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Ingress-nginx

NginxIngressHighHttp4xxRate [warning]

We are serving a high rate of 4xx client http errors.

Possible causes

• A client is being rate limited
• A client is misbehaving Notify the client that is causing the errors, if need be, investigate blocking the client by IP address.

NginxIngressHighHttp5xxRate [warning]

We are serving a high rate of 5xx server http errors.

Possible causes

• A service is experiencing an outage
• Cluster / node failure
• Network partition

Investigate the ingress that is experiencing the http errors.

Additional alerts should have fired when we experience 5xx errors.

NginxIngressLatencyHigh [warning]

We are breaching our SLO of latency resulting in poor user experience.

Possible causes

• Too low capacity for the backend service
• High utilisation or saturation of resources
• Performance regression of backend services