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What is the maximum number of pods in an ARO cluster? What is the maximum number of pods per node in ARO?

vipullag-MSFT 26,391 Reputation points
2020-05-14T13:25:32.307+00:00

What is the maximum number of pods in an ARO cluster? What is the maximum number of pods per node in ARO?

[Note: As we migrate from MSDN, this question has been posted by an Azure Cloud Engineer as a frequently asked question]

Azure Red Hat OpenShift
Azure Red Hat OpenShift
An Azure service that provides a flexible, self-service deployment of fully managed OpenShift clusters.
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  1. KarishmaTiwari-MSFT 20,212 Reputation points Microsoft Employee
    2020-05-15T00:22:15.977+00:00

    Azure Red Hat OpenShift 3.11 has a 50-pod per node limit with ARO having a 20-compute node limit, so that caps the maximum number of pods supported in an ARO cluster to 50*20 = 1000.

    Source: Azure Documentation FAQ

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  1. Cristiano da Silva Azevedo 21 Reputation points
    2022-09-14T18:32:55.43+00:00

    Follow update:

    What is the maximum number of pods in an Azure Red Hat OpenShift cluster? What is the maximum number of pods per node in Azure Red Hat OpenShift?
    The actual number of supported pods depends on an application’s memory, CPU, and storage requirements.

    Azure Red Hat OpenShift 4.x has a 250 pod-per-node limit and a 60 compute node limit. These limits cap the maximum number of pods supported in a cluster to 250×60 = 15,000.

    Azure Red Hat OpenShift 3.11 has a 50 pod-per-node limit and a 20 compute node limit. These limits cap the maximum number of pods supported in a cluster to 50×20 = 1,000.

    https://learn.microsoft.com/en-us/azure/openshift/openshift-faq

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