Data Flow Performance degradation

[Anonymous]

It seems to me that the Performance of the DataFlow Generation on PowerBI Service has degraded considerably in the past weeks

I am Seeing two Errors

1 - the Query will fail often when editing with the data preview on with the error dataflow timed Out 
     (it is possible to switch to the Schema View and Continue)

2 - when saving and Validating  Queries it will take Literally Hours to Validate and save (Stuck at we are Validating... (retrieving table schema X of Y)

Once saved the query Processes in ~25min

These errors above make it Practically IMpossible to Edit Dataflows

[btfergie]

I just tried to edit a dataflow and it is still loading after 20 minutes.

[v-robertq-msft]

Hi,

According to my research, there’s a similar ICM that has been submitted internally. ICM: 239700284

But if you want to get a solution for this kind of problem as soon as possible, I still suggest you to open a support ticket to get direct help from the technical support team of Microsoft.

https://community.powerbi.com/t5/Community-Blog/How-to-create-a-support-ticket-in-Power-BI/ba-p/6830...

https://powerbi.microsoft.com/en-us/support/

Thank you very much!

Best Regards,

Community Support Team _Robert Qin

[Anonymous]

3 Minutes 9 Sec to switch from Schema View to Data Preview

[jopires0]

When saving the Dataflow, it takes a very long time to Validate Queries. Sometimes it aborts with unexpected error. Sometimes it runs for hours and never finishes saving the modification aplied.