org.apache.http.conn.HttpHostConnectException

Hi All,

I have my spring boot services deployed to AKS cluster and had Istio installed.
While I am doing the load testing with JMeter am getting the below exception.

Non HTTP response code: org.apache.http.conn.HttpHostConnectException/Non HTTP response message: Connect to xxx.xxx.cloudapp.azure.com:80 [xxx.xxx.cloudapp.azure.com\/xxx.xx.xxx.xxx] failed: Cannot assign requested address (connect failed)

I have tried increased no:of pods for “istio-ingressgateway” & “istio-pilot” from https://github.com/istio/istio/issues/10904.

If the load is anything more than 1000 req/sec the above exception starts occurring and the remaining tests starts failing. Tried different versions of Istio as well.

Current confiruation is:
AKS - 1.12.8
Istio - 1.1.7

Thanks in advance,
Binoy