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Anti-virus programs may lock files used by the SolarWinds Job Engine v2 during scanning. This can cause the SolarWinds Job Engine v2 services to stop and restart, causing delayed polling and gaps in data for a poll cycle.
An exception similar to the following is logged when the SolarWinds Job Engine v2 crashes due to the locked files:
2010-11-22 09:15:50,572 [ResultDispatcher] FATAL SolarWinds.JobEngine.Scheduling.ResultDispatcher - Unexpected exception on result dispatcher thread
System.UnauthorizedAccessException: Access to the path 'C:\ProgramData\Solarwinds\JobEngine.v2\SchedulerResults\10566979-1461-4478-8adc-8363f8f61c0e.result' is denied.
at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
at System.IO.File.Delete(String path)
at SolarWinds.JobEngine.PersistentResultStore.DeleteJobResult(Guid jobId)
at SolarWinds.JobEngine.Scheduling.ResultDispatcher.DeleteJobResults(List1 results, Boolean expiredResults)
When the SolarWinds Job Engine v2 services restart, an event is generated in the Windows Logs/Application section of the Event Viewer.
To avoid the issues caused by anti-virus file locking, SolarWinds recommends that you exclude the following Orion data directory (depending on your Windows platform) from your anti-virus scanning to improve performance and stability: