Number of Event Hub Namespaces

Chu Xu 21 Reputation points
2021-04-20T16:01:12.09+00:00

In https://video2.skills-academy.com/en-us/azure/event-hubs/event-hubs-quotas, It wrote that there's a limit of eventhub namespaces of 100 for a subscription on all tiers. And then it also said in the same page there's a limit of 50 namespaces per CU if I am on dedicated tier.

Let's say I am on dedicated tier with 10 CU in my only subscription, how many event hub namespaces can I have now? 100 or 500?

Azure Event Hubs
Azure Event Hubs
An Azure real-time data ingestion service.
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  1. PRADEEPCHEEKATLA-MSFT 89,386 Reputation points Microsoft Employee
    2021-04-22T06:55:54.913+00:00

    Hello @Chu Xu ,

    Here is the answer provided by the product group:

    100 namespaces limit applies to all subscriptions by default regardless of the tier.

    If you need more than 100, you need to open a quota increase request in the Azure portal.

    Hope this helps. Do let us know if you any further queries.

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    Please don’t forget to Accept Answer and Up-Vote wherever the information provided helps you, this can be beneficial to other community members.

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  1. PRADEEPCHEEKATLA-MSFT 89,386 Reputation points Microsoft Employee
    2021-04-21T04:29:52.467+00:00

    Hello @Chu Xu ,

    Welcome to the Microsoft Q&A platform.

    Azure Event Hubs dedicated clusters are provisioned and billed by Capacity Units (CUs), a pre-allocated amount of CPU and memory resources. You can purchase 1, 2, 4, 8, 12, 16 or 20 CUs for each cluster.

    If you are creating Event Hubs dedicated with 10 CU, you can create 1000 event hubs per namespace.

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    Hope this helps. Do let us know if you any further queries.

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    Please don’t forget to Accept Answer and Up-Vote wherever the information provided helps you, this can be beneficial to other community members.

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