Skip to main content
cancel
Showing results for 
Search instead for 
Did you mean: 

Compete to become Power BI Data Viz World Champion! First round ends August 18th. Get started.

Reply
Anonymous
Not applicable

PowerBI using too many connections to PostgreSQL - refreshing data results in an error

Hi all, 
My dashbaord has 10 tables connected to the same PostgreSQL database through a gateway. 

I am getting the following error on desktop:
"OLE DB or ODBC error: [DataSource.Error] PostgreSQL: 53300: remaining connection slots are reserved for non-replication superuser connections."

Also, getting this error from the published version of the dashboard: (error shortened by me)
{"error":{"code":"DM_GWPipeline_Gateway_MashupDataAccessError","pbi.error":{"code":"DM_GWPipeline_Gateway_MashupDataAccessError","parameters":{},"details":[..............,"53300: remaining connection slots are reserved for non-replication superuser connections"}},{............],"exceptionCulprit":1}}} Table: view_result."

Trying to increase the number of max connections allowed from 50 to 100 on the DB allowed the connections seen to increase even more. see this chart showing the max number of active connections: 
MicrosoftTeams-image (10).png

Has anyone faced similar situation or has a logical explanation? How can one refine and lower the number of connections?

Thank you 

1 ACCEPTED SOLUTION
Anonymous
Not applicable

Hi @Anonymous ,

 

The problem seems to come from the data source.

PostgreSQL: Documentation: 15: Appendix A. PostgreSQL Error Codes

 

See if this thread is helpful:

postgresql - postgres db shows too many connections .what is the reason. how to check connection in jmeter tool

 

Best Regards,
Gao

Community Support Team

 

If there is any post helps, then please consider Accept it as the solution  to help the other members find it more quickly. If I misunderstand your needs or you still have problems on it, please feel free to let us know. Thanks a lot!

How to get your questions answered quickly --  How to provide sample data in the Power BI Forum

View solution in original post

2 REPLIES 2
Anonymous
Not applicable

Hi @Anonymous ,

 

The problem seems to come from the data source.

PostgreSQL: Documentation: 15: Appendix A. PostgreSQL Error Codes

 

See if this thread is helpful:

postgresql - postgres db shows too many connections .what is the reason. how to check connection in jmeter tool

 

Best Regards,
Gao

Community Support Team

 

If there is any post helps, then please consider Accept it as the solution  to help the other members find it more quickly. If I misunderstand your needs or you still have problems on it, please feel free to let us know. Thanks a lot!

How to get your questions answered quickly --  How to provide sample data in the Power BI Forum

Anonymous
Not applicable

@Anonymous thank you for your response!
I`m still trying to figure why it is happening in the first instance if you have further info? 

Helpful resources

Announcements
August Power BI Update Carousel

Power BI Monthly Update - August 2025

Check out the August 2025 Power BI update to learn about new features.

August 2025 community update carousel

Fabric Community Update - August 2025

Find out what's new and trending in the Fabric community.

Top Solution Authors