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Status Functionality already exists
Workspace Instana
Categories Kubernetes
Created by Guest
Created on Dec 11, 2023

RELATED IDEAS

Limit what files are copied per pod by instana-instrumentation-init

The typical duration of instana-instrumentation-init is 2 seconds. This becomes an issue during node consolidation and when pods are moved to a new node.


I’ve analysed the reason for this slow performance, and it is likely due to the init container copying 12 139 files of 270 MB.


My specific pod is using .NET Core, which only needs 8 files of 3MB.


Currently the webhook uses a global flag to enable the copy of a SDK, i.e.

https://github.com/instana/instana-autotrace-webhook/blob/main/incubator/instana-autotrace-webhook/values.yaml#L74


Improvement Suggestion: To improve the performance of the init container, please use a K8s label to indicate for which SDK the container is opting-in. Like the current tracing opt-in label:

https://www.ibm.com/docs/en/instana-observability/current?topic=technologies-instana-autotrace-webhook#opt-in-or-opt-out

Idea priority Medium
  • Admin
    Henning Treu
    Reply
    |     Mar 13, 2024

    Hi,


    this is already possible, either setting it globaly for everything the AutoTrace Webhook instruments, or Deployment specific:


    This is going to be added to the official documentation as we speak. I hope this resolves the issue for you already!


    Best regards

    Henning Treu - Instana Product Manager

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