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[Scalability] Enable Horizontal Pod Autoscaler (HPA) for Alcor deployment #635

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xieus opened this issue Jun 9, 2021 · 3 comments · May be fixed by #679
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[Scalability] Enable Horizontal Pod Autoscaler (HPA) for Alcor deployment #635

xieus opened this issue Jun 9, 2021 · 3 comments · May be fixed by #679
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@kevin-zhonghao
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deployment and upgrade help wanted Extra attention is needed perf testing Performance Testing

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@xieus
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xieus commented Jun 9, 2021 •
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Feature Requirements

The K8s HPA automatically scales the number of Pods in a replication controller, deployment, replica set or stateful set based on observed CPU utilization (or, with custom metrics support, on some other application-provided metrics). This naturally fits into Alcor's performance requirement to scale up the number of replicas for each Microservice when the load increases.

Detailed Requirements

  • Define HorizontalPodAutoscaler including target metrics (like CPU)
  • Tune scaling policies including ScaleDown and ScaleUp policies (like periodSecond, selectPolicy and stabilizationWindowSeconds etc.). Make recommended default behavior for each Microservice.
  • Stress testing a few key Microservices (PM for example) to trigger scale up and down policies.

Reference

K8s HPA: https://kubernetes.io/docs/tasks/run-application/horizontal-pod-autoscale/
@xieus xieus added help wanted Extra attention is needed perf testing Performance Testing deployment and upgrade labels Jun 9, 2021
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xieus commented Jun 9, 2021

@kevin-zhonghao Checking if you can help on this issue.

@kevin-zhonghao
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@kevin-zhonghao Checking if you can help on this issue.

NP, the current question is we may find a suitable test environment.

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xieus commented Jun 10, 2021

@kevin-zhonghao Checking if you can help on this issue.

NP, the current question is we may find a suitable test environment.

Good point. I will see if we can bring up a few AWS VMs for testing.

@xieus xieus mentioned this issue Jun 23, 2021
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@xieus xieus linked a pull request Aug 17, 2021 that will close this issue
[Scalability] Enable Horizontal Pod Autoscaler (HPA) for Alcor deployment #679
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[Scalability] Enable Horizontal Pod Autoscaler (HPA) for Alcor deployment kevin-zhonghao/alcor
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