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Hello all,
I have a issue in performance of Dataflow PBI.
I use a Premium per capacity license account.
Flow of mine refresh data is:
1. Use PBI Dataflow get raw fact_table from MS SQL Server. Raw Table have 40mil row
2. Create a reference table in PBI Dataflow to 2 agg table smaller, with difference level of groupby for fast visual
3. Load 2 agg table to PBI Desktop workbook
and problem is:
- I have refresh a dataflow in PBI Service but in PBI Desktop its almost refresh again, and not get data from storeage of dataflow
- Refresh time of more details agg table is very slow. More slower than i load raw table (1) direct from Ms SQL and not use DataFlow
- Consume too much network bandwidth for a 600MB PBI Workbook, in img is more than 4 GB !!!
IMG1 : Flow of query
IMG2: Refresh consume
Thanks you all,
Hi @ThanhPM10 ,
I suggest you take a look at this document about understanding and optimizing dataflows refresh.
Best Regards,
Jay
Thank you,
But i see this article not help anything in my case
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