TPS drop when connecting to AWS hosted API from Azure

Ghanapuram, Chaitanya 0 Reputation points

We have API Gateway hosted in AWS EKS and upstream API aka backend hosted in AWS. Also same API Gateway hosted in Azure (AKS).

When we run a perf test on following scenarios
Scenario - 1

  • --->

Scenario - 2

  • --->

Scenario 2 is yielding us 20% drop in TPS compared to scenario 1 and around 1% traffic failed due to connection errors to aws upstream.

Can anyone help me understand what could be potential reason ?

Azure Kubernetes Service (AKS)
Azure Kubernetes Service (AKS)
An Azure service that provides serverless Kubernetes, an integrated continuous integration and continuous delivery experience, and enterprise-grade security and governance.
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