Forum Discussion
LinuxForWhenItMatters
Oct 08, 2025Copper Contributor
Azure AD Health Failing
I am on the latest version of Azure AD Connect (2.5.79.0)... There are no network/DNS/connectivity issues at our site, it seems to me that Azure AD Health Service is having trouble because the endpoi...
Kidd_Ip
Oct 10, 2025MVP
Try this:
- Enable Auto-Inflate for Event Hub
- Go to your Event Hub namespace in the Azure portal.
- Enable Auto-Inflate to allow dynamic scaling of TUs (up to 20 by default).
- If you need more than 20 TUs, submit a support request to Microsoft.
- Check Partition Load Distribution
- Ensure your data is evenly distributed across all Event Hub partitions.
- Use EventHubClient.Send without a partition key or with a round-robin strategy to balance the load.
- Monitor Usage Metrics
- Use Azure Monitor to check Event Hub metrics like Incoming Requests, Throttled Requests, and Throughput Units.
- This will help you identify spikes or bottlenecks.
- Allow Port 5671
- Although fallback to port 443 is possible, port 5671 is preferred for optimal performance.
- Ensure your firewall allows outbound traffic on port 5671.
- Retry Logic
- Implement exponential backoff in your retry logic to handle transient throttling gracefully.