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

The Power BI Data Visualization World Championships is back! Get ahead of the game and start preparing now! Learn more

Reply
dinoscool3
Helper II
Helper II

Power BI Online refresh: "MySQL: Fatal error encountered during data read."

I have a couple of datasets that are set to automatically refresh on the Power BI website. These were built in desktop and published. I keep on having an error like the following:

[ValidateMarkupTags]{"error":{"code":"DM_GWPipeline_Gateway_MashupDataAccessError","pbi.error":{"code":"DM_GWPipeline_Gateway_MashupDataAccessError","parameters":{},"details":[{"code":"DM_ErrorDetailNameCode_UnderlyingErrorCode","detail":{"type":1,"value":"-2147467259"}},{"code":"DM_ErrorDetailNameCode_UnderlyingErrorMessage","detail":{"type":1,"value":"[ccon]MySQL: Fatal error encountered during data read.[/ccon]"}},{"code":"DM_ErrorDetailNameCode_UnderlyingHResult","detail":{"type":1,"value":"-2147467259"}},{"code":"Microsoft.Data.Mashup.ValueError.DataSourceKind","detail":{"type":1,"value":"MySql"}},{"code":"Microsoft.Data.Mashup.ValueError.DataSourcePath","detail":{"type":1,"value":"[ccon][ccon]111.111.111.1111</ip>[/ccon]<ip><ip>111.111.0.0</ip></ip>table[/ccon]"}},{"code":"Microsoft.Data.Mashup.ValueError.ErrorCode","detail":{"type":1,"value":"-2147467259"}},{"code":"Microsoft.Data.Mashup.ValueError.Message","detail":{"type":1,"value":"[ccon]Fatal error encountered during data read.[/ccon]"}},{"code":"Microsoft.Data.Mashup.ValueError.Reason","detail":{"type":1,"value":"DataSource.Error"}}],"exceptionCulprit":1}}} Table: table watch_events.

 

 

Any idea what I can do?

1 ACCEPTED SOLUTION
ibarrau
Super User
Super User

Hi. A mashup error usually means that there is a problem with the transformations. I would probably open the power bi desktop and look for errors. Desktop will probably run the refresh correctly, but there is an error at the rows that Service won't allow, that's why I would look for errors like filtering by error at rows or warnings after refresh.

I hope that helps,


If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

Happy to help!

LaDataWeb Blog

View solution in original post

4 REPLIES 4
M0hamedFazil
Helper II
Helper II

Hi @dinoscool3,

I have been facing with same problem lately. Could you able to come for a solution?

I gonr through the exisiting solution and I don't seem to have problems with my transformation. I have gone through every transformations. Thanks in advance

Regards
Fazil M

 

No, never did. I have a lot of data that probably isn't the cleanest though, so I'm planning on trying to clean it up before it gets to Power BI and see if that helps. If you find another solution, let me know!

Ure, will do!

ibarrau
Super User
Super User

Hi. A mashup error usually means that there is a problem with the transformations. I would probably open the power bi desktop and look for errors. Desktop will probably run the refresh correctly, but there is an error at the rows that Service won't allow, that's why I would look for errors like filtering by error at rows or warnings after refresh.

I hope that helps,


If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

Happy to help!

LaDataWeb Blog

Helpful resources

Announcements
Power BI DataViz World Championships

Power BI Dataviz World Championships

The Power BI Data Visualization World Championships is back! Get ahead of the game and start preparing now!

December 2025 Power BI Update Carousel

Power BI Monthly Update - December 2025

Check out the December 2025 Power BI Holiday Recap!

FabCon Atlanta 2026 carousel

FabCon Atlanta 2026

Join us at FabCon Atlanta, March 16-20, for the ultimate Fabric, Power BI, AI and SQL community-led event. Save $200 with code FABCOMM.