I'm running NTA from July and sometimes netflow service stops randomly. It needs more often to start it manually from Orion Services Manager or from server's management/services option. I mean the service started automatically 1 or 2 times only during last 3 months. It happens 1-3 times a week but not every day.
The only one regularity I found was that service stopped more often during (or just after) database maintenance than other time.
Orion runs on MS Server 2008R2, NetPerfMon database runs on MS SQL 2005/MS Server 2003 SP2
Modules: SolarWinds Orion Core 2010.1.0 SP1, APM 3.5, NPM 10.0.0 SP1, NTA 3.7
Any suggestions about the reason?
This might indicate some performance issues for example, but it could be caused by variety of different reasons. I suggest to open support ticket, so we can investigate this case more.