Have someone got "[HY000:[Microsoft][SQL Server Native Client 11.0]Connection is busy with results for another command]" in the ArcGIS server log?
We have a feature service with 3 layers. We use this feature service in a webmap together with Collector for Offline use.
The feature service is hosted in a ArcGIS Server 10.4.1 with SQL Native Client ver 11.0 installed.The Portal environment is ver 10.5.1.
When there are a lot of syncing going on against this feature service this message often shows in the ArcGIS Server log. The message comes for every layer in the feature service.
We use MS SQL 13.0.5216 and we can't see any performance problems there.