Skip to main content
cancel
Showing results for 
Search instead for 
Did you mean: 

Did you hear? There's a new SQL AI Developer certification (DP-800). Start preparing now and be one of the first to get certified. Register now

Reply
Mathan1787
Helper I
Helper I

Lakehouse table error -'Message: The SQL pool is warming up.

Hi,

when i ran a pipeline and i have got a following error message.

 

 

Failure happened on 'Source' side. ErrorCode=SqlOperationFailed,'Type=Microsoft.DataTransfer.Common.Shared.HybridDeliveryException,Message=A database operation failed with the following error: 'Message: The SQL pool is warming up. Please try again.; Server Name: '51b86d2b-2e94-41e2-99af-038c977e6981.database.windows.net'; Procedure Name: ''; Number: 42109; State: 1; Class: 20; Line: 0 Current Activity Id: b51420cf-2646-4862-b937-b83c1925486c',Source=,''Type=System.Data.SqlClient.SqlException,Message=Message: The SQL pool is warming up. Please try again.; Server Name: '51b86d2b-2e94-41e2-99af-038c977e6981.database.windows.net'; Procedure Name: ''; Number: 42109; State: 1; Class: 20; Line: 0 Current Activity Id: b51420cf-2646-4862-b937-b83c1925486c,Source=.Net SqlClient Data Provider,SqlErrorNumber=9756,Class=19,ErrorCode=-2146232060,State=1,Errors=[{Class=19,Number=9756,State=1,Message=Message: The SQL pool is warming up. Please try again.; Server Name: '51b86d2b-2e94-41e2-99af-038c977e6981.database.windows.net'; Procedure Name: ''; Number: 42109; State: 1; Class: 20; Line: 0 Current Activity Id: b51420cf-2646-4862-b937-b83c1925486c,},],'

 

pipeline contains a lookup activity which collects the max data from lakehouse table. I have retried two times and i got a same message.

4 REPLIES 4
Element115
Memorable Member
Memorable Member

How on earth did you manage to get Lookup to return the MAX of anything??  The Settings GUI I have on screen doesn't let me specify any SQL query, only select First row or by default, 5,000 rows returned in an arbitrary order. 

 

Could you please explain how you did it?

HimanshuS-msft
Microsoft Employee
Microsoft Employee

Hello @Mathan1787 
Thanks for using the Fabric community.

I just tried out a ppeiline with a lookup activity pointing to Lakehouse table and it ran just fine .

HimanshuSmsft_0-1692816094260.png

 

The error mentions "51b86d2b-2e94-41e2-99af-038c977e6981.database.windows.net" which is confusing me . 
In the lookup activity when you click Preview , does that fetch data ?

HimanshuSmsft_1-1692816616219.png


Thanks
HImanshu

It worked for me in lookup when i ran a separate lookup in a new pipeline but when i invoke multiple pipeline and some of the pipeline these lookup from lakehouse threw me an error.

DennesTorres
Impactful Individual
Impactful Individual

Hi,

Does this pipeline use Synapse serverless in some way? 

This is a warm up message usually triggered by Synapse Serverless when it's warm up. The solution: Wait 1 minute or two and try again.

If it doesn't involve Synapse Serverless, I believe it's a temporary problem. Otherwise you may need to open a support ticket.

Kind Regards,

 

Dennes

Helpful resources

Announcements
April Fabric Update Carousel

Fabric Monthly Update - April 2026

Check out the April 2026 Fabric update to learn about new features.

Fabric SQL PBI Data Days

Data Days 2026 coming soon!

Sign up to receive a private message when registration opens and key events begin.

New to Fabric survey Carousel

New to Fabric Survey

If you have recently started exploring Fabric, we'd love to hear how it's going. Your feedback can help with product improvements.