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Hi,
I posted yesterday about refresh issues in Dataflows.
I've found a work around.
Background : I have an ingestion workspace which has dataflows that ingest data from sql. no issues with these. I have a curated workspace which links to these dataflows and applys some transfromations. These have stopped working since the Sep 24.
I found that by changing the settings for the enhanced compute engine settings from OPTIMISE to DISABLE on the dataflow they have started working again.
Still have an active microsoft case going but sharing here, in case others are seeing it.
Hi @frano72,
Thanks for sharing, I think this workaround will help others who faced similar issues.
BTW, did this issue only appears on a specific Datasource type/workspace? What type of operations did you apply to these dataflows? Please share detail to help us troubleshoot and find out the root casing of these issues.
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Regards,
Xiaoxin Sheng
Hi @v-shex-msft - the data sources are linked entities from another dataflow in another workspace.
Its really simple transformation.
I link to one entity from another workspace - ensure its set to load.
Create a reference query from this. The transforms to this are
make a columns a key :
Hi @frano72,
I think it probably related to premium workload settings.
You can refer to the following link to know the resource setting of premium capacity and ask the admin to check if your resource exceeds the limit/settings.
Configure workloads in a Premium capacity
Regards,
Xiaoxin Sheng
@v-shex-msft - Hi, I think there is still an issue with the Service but I realise now what is going on.
The deeper understanding came from Mattew Roches excellent blog site.
https://ssbipolar.com/2020/09/16/dataflows-enhanced-compute-engine-will-it-fold/
basically I was thinking about it wrong (but it still should not have affected it).
The compute engine should be used for the ingestion dataflows. There is no need to use the compute engine for the transformation dataflows. It’s the transformation onces that are accessing the sql cache (ie compute engine) of the ingestion ones.
So this explains why it can be DISABLED for the transformation dataflows (what i originally thought was a workaround)
However – when the setting is set to OTPIMISE – it should realise that those entities are NOT linked to any further downstream dataflows and therefore should be equivalent to an DISABLED state.
So this is where I do think something has changed in the way this aspect works. Before Sep 24 an OPTIMISE setting was correctly determining these dataflows aren't linked anywhere else therefore treat as DISABLED. Since Sep 24, that logic isn't working, and workaround is to MANUALLY set them to DISABLED.
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