We are noticing a strange issue with ArcGIS server instances with using feature layer in OnDemand Mode. In our iOS app, when loading feature layers in OnDemand mode, we are noticing ArcGIS server instances crashing and restarting, making application really slow. However, as soon as I change the layers to SNAPSHOT mode, it doesn't happen. This issue does not happen when using same services in JavaScript API. in OnDemand Mode.
Any Ideas? Could it be load on the server?
I could survive using SNAPSHOT mode but the problem with using SNAPSHOT is that layers does not get updated after adding, deleting or updating features everytime. I am calling [FeatureLayer refresh] in didFeaturesEditWithResults method, does not show updated layer every single time.