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Sam_Jain's avatar
Sam_Jain
Helper III
2 years ago
Solved

Power BI Dataflow - response too large to return

Hello Community,   I have run into a PowerBI dataflow issue. My source table is in Big Query and is a table that gets updated daily and has data for the last 90 days in a rolling fashion.   What ...
Dataflow
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  • lbendlin's avatar
    lbendlin
    2 years ago
    Can't use direct connection to BQ for access reasons

    Challenge that assumption.  Tell them that 650 GB is too much.

     

    If they don't budge, use Incremental Refresh. Start VERY small, with a day or so.  See how many rows you get.  Recommended partition size is around 8 to 20 million rows.

  • lbendlin's avatar
    lbendlin
    2 years ago

    Please explain "import does not work"  - are you getting an error message?

     

    Direct Query on a dataflow = datamart = lipstick on a pig  (Azure SQL db being the lipstick and the dataflow being the pig).  Possible, sure,  but a travesty nevertheless.

     

    You can consider switching the incremental refresh to the dataset instead and to completely remove the dataflow from the equation.

     

    You can consider dataflow Gen2 and store the results as Delta Lake in Fabric.

Sam_Jain's avatar
Sam_Jain
Helper III
2 years ago

That's a great question, sorry! I am not a hundred percent sure but the space is itself is premium with SKU:P3 and i just created the dataflow off of the workspace hitting New -> Dataflow and then to big query for the connection. I did not encounter an option for Gen 1 or Gen 2, if there is a different method to get to them i can definitely try.

Thanks 

Sam_Jain's avatar
Sam_Jain
Helper III
2 years ago

Attempting to try the GEN2 dataflow via creating the data lakehouse method.