I have an SOE deployed on a map service. It does some fairly routine QA operations, but when a large (>1000 features) are run through it, the operation times out. It happens at 300 seconds, which makes me think it's a setting in ArcGISServer somewhere rather than in the SOE code itself. Anyone else have this issue, or know of a fix? Thanks.
Short answer the maximum number of results returned is set to 1000 within ArcGIS Enterprise (Server) by default. There is a setting for this for each map service.