AKS- Having multiple nodes decrease the networking speed of the services deployed?

Sinkaravel M 1 Reputation point
2022-07-04T04:05:22.713+00:00

Hello Team,

I have a AKS cluster running and having multiple nodes (20 node) running on the one node pool.
Recently we are facing the network latency issue on the services which are deployed on the node pool.

Is having multiple nodes on the node pool decrease the networking speed or performance ?

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.
2,253 questions
0 comments No comments
{count} votes

1 answer

Sort by: Most helpful
  1. vipullag-MSFT 26,431 Reputation points
    2022-07-05T11:31:18.567+00:00

    @Sinkaravel M

    Welcome to Microsoft Q&A Platform, thanks for posting your query here.

    The latency is not related to fewer nodes.

    As an example, if your nodepool is spread across AZs, then pods can be spread across AZs increasing the latency but then again, this should be happening even with a much lower set of nodes.
    Same reasoning can impact if you’re using internalTrafficPolicy on services, same with much lower nodes.
    If your workload is really sensitive to latency, you can try proximity placement groups to reduce latency for Azure Kubernetes Service (AKS) clusters. Refer this document.

    Hope this helps.
    If the suggested response helped you resolve your issue, please 'Accept as answer', so that it can help others in the community looking for help on similar topics.

    0 comments No comments

Your answer

Answers can be marked as Accepted Answers by the question author, which helps users to know the answer solved the author's problem.