Data Warehouse In not responding

[Shiva123]

Hi all , 
We are facing an issu with fabric warehouse , some times it is not responding for hours . what may be the issue ?

[Shiva123]

Thanks for the information 

[Ilgar_Zarbali · Accepted solution]

If your Fabric Data Warehouse is not responding for hours, it could be due to one of the following common issues:

1. Heavy query load or long-running queries causing resource exhaustion
2. Concurrency limits being hit if many users or processes are accessing it at once
3. Scheduled maintenance or service disruption in your region
4. Connectivity issues from your network or client tool

Check the Monitoring hub for query activity and the Fabric status page for any service outages. Restarting the warehouse or reducing workload might help temporarily.

[Shiva123]

Thanks for the information .

[nilendraFabric]

Hi @Shiva123 

https://learn.microsoft.com/en-us/fabric/data-warehouse/troubleshoot-fabric-data-warehouse

If queries use a lot of temporary storage (e.g., large JOINs, GROUP BY, ORDER BY), the internal `tempdb` might run out of space, causing failures or severe slowdowns

slowdowns

If the issue persists and is not resolved by the above steps, contact Microsoft support with detailed logs and error messages