Dataflow chain refresh error - lock model

[Anonymous]

I have 3 Staging Dataflows created which basically brings tables from 3 different sources.

Then I tried to create a Transformation Dataflow in which I am using all the linked tables coming from earlier Dataflows.

While I try to schedule these 3 Dataflows at the same time say for example DF1, DF2, DF3 at 8:00 it's getting failed due to below error.

"Cannot acquire lock for model xxxxxx because it is currently in use."

Does this mean I can't refresh all the three DF's at the same time? I don't want to wait for 30 mins interval for second DF to refresh and consecutively another 30 mins for next.

Can I know why is this happening please?

The Sources I am using are MYSQL, SQL On Premesis, Sharepoint. Only one out these will be successful as the other will throw the below error.

Anything to do with gateway settings? This is strange.

The Transformation Dataflow will auto refresh soon after actual DF1, DF2, DF3 starts refresh as I am using linked Entities from them as said above. Thanks for your help

[v-jayw-msft]

Hi @Anonymous ,

Not very clear, you may refer the following topics.

https://community.powerbi.com/t5/Service/Cannot-refresh-or-save-dataflow-Cannot-acquire-lock-for-model/m-p/888031 

https://community.powerbi.com/t5/Service/Can-t-save-dataflow-cannot-acquire-lock-for-model/m-p/818574 

Best Regards,

Jay