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gj81
New Member

Dataflow referencing 2 or more dataflows blocks the originals from refreshing

HI - I have a premium workspace with  5 seperate "Layer 1" ingestion dataflows bringing in data from an Azure data warehouse.  No ETL in the dataflows, just pure ingestion. 

 

I have then a single "Layer 2" ETL dataflow in the same workspace that links to all 5 tables, creates "reference" tables of each linked table, marks columns as Key columns, and thats it for now ( ultimately will merge them all, but thats off topic).  

 

The issue is that when I try to run schedule refreshes accross the 5  Layer 1s, one will run, but the others will fail due to Lock error message below.   If I delete the Layer 2 dataflow, everything refreshes no problem.    If I put the Layer 2 in another workspace, again everything will refresh no problem, however I would prefer not to seperate the full ETL into different workspaces. 

Error message : 

" There was a problem refreshing your dataflow. xxxx   "ErrorMessage":"Cannot acquire lock for model yyyy  because it is currently in use"

 

Is this an expected behaviour ?   If so, is there a workaround or proper best practice to setting up ETLs ?  If not, what can I do to troubleshoot ?   Its definitely the Layer 2 Dataflow causing the issue, I've tested deleting, refreshing, recreating multiple times with same outcome. 

 

Thanks,
Dave

2 REPLIES 2
gj81
New Member

Thanks for the reply, no I'm reasonably new .  Will google that now. 

 

edit - got the code, but unsure where I place it to stop the downstream dataflow from locking upstream ?

lbendlin
Super User
Super User

Have you considered using Table.Buffer for better spooling isolation?

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