Share via

About Event Hubs Autoinflate

Jona 905 Reputation points
2025-07-30T16:06:05.9466667+00:00

Hi,

I'm testing de Auto Inflate feature of EVent Hubs. I sending workloads to Event Hubs via REST API to saturate it and see the inflation process.

Docs tell me that logs expresses the reason why and when inflation takes places:

https://learn.microsoft.com/en-us/azure/event-hubs/event-hubs-auto-inflate?WT.mc_id=Portal-Microsoft_Azure_EventHub#use-azure-portal (see the note)

Why not watching the TU's of the namespace? Do they reflect the inflation process??

User's image

Regards

Azure Event Hubs
Accepted answer
  1. Chandra Boorla 15,425 Reputation points Microsoft External Staff Moderator
    2025-07-31T05:50:37.2933333+00:00

    Hi Jona

    Great question!

    You are right that the Throughput Units (TUs) shown in the Azure Portal reflect the current allocation, so if auto-inflate is triggered, you'll see the TU count increase in real time.

    However, the key point is:

    The portal shows the current TU value, but it doesn’t explain when the increase happened or why it was triggered.

    That’s where logs and diagnostics come in. They provide detailed insight into the auto-inflate process, such as the exact trigger time, reason, and metrics that led to the scale-up event.

    Conclusion:

    Use the portal TU count for real-time observation.
    Use logs/metrics for troubleshooting and validation.

    I hope this information helps. Please do let us know if you have any further queries.

    Kindly consider upvoting the comment if the information provided is helpful. This can assist other community members in resolving similar issues.

    Thank you.

    1 person found this answer helpful.
    0 comments

0 additional answers

Sort by: Most helpful
Most helpful Newest Oldest

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.