Istio Request Size Limit Exceeded Alert

Overview

This incident type occurs when requests sent through the Istio service mesh exceed the configured size limits. This can cause service disruptions or failures, as the system is unable to process the oversized requests. An alert is triggered to notify the relevant stakeholders to investigate and resolve the issue in a timely manner.

Parameters

Debug

Check the status of the Istio control plane

Check the status of the ingress gateway

Check the Istio configuration for the namespace

Check the Istio configuration for the ingress gateway

Check the Istio virtual service configuration for the service

Check the Istio destination rule configuration for the service

Check the Envoy proxy configuration for the service

Check the Envoy proxy access logs for requests that exceeded the limit

Check the request size limit in the Istio virtual service configuration for the service

Check the request size limit in the Istio destination rule configuration for the service

Repair

Increase the configured size limit for requests in Istio configuration.