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Home > Success Center > Netflow Traffic Analyzer (NTA) > NTA - Knowledgebase Articles > ERROR SolarWinds.Netflow.FastBit.Server.Service.Program - NetFlowService will be abnormally terminated - UnhandledException was caught : System.AccessViolationException

ERROR SolarWinds.Netflow.FastBit.Server.Service.Program - NetFlowService will be abnormally terminated - UnhandledException was caught : System.AccessViolationException

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Created by Interspire Import, last modified by Melanie Boyd on Jun 21, 2018

Views: 1,546 Votes: 0 Revisions: 9

Issue:

This article applies NTA 4.2 and earlier. NTA 4.4 and later versions use a SQL Server database to store flow data. For more information, see Databases used by SolarWinds modules.

 

The main Orion server is unable to connect to the NTA flow storage database server with the following error:

ERROR Solarwinds.Netflow.FastBit.Server.Service.Program - NetFlowService will abnormally terminated - UnhandledException was caught : System.AccessViolationException

Cause:

The main Orion server's inability to connect to the NTA flow storage database indicates that files are corrupted.  Consequently, the files could not connect to Fastbit Studio utlity.

Resolution:

Part 1. Stop NTA's flow storage database (FSDB) service.

     Note: In NTA 4.X architecture, there are two types of deployment, which has two two different ways to stop/restart the NTA service: 

     Single Server
  1. Open Orion Service Manager.
  2. Stop/Start NTA Netflow service (this action will restart the NetFlow storage service).
     Separate Server
  1. Login to FSDB server (separate machine).
  2. Click Start > Run CMD.exe (Command Shell or Windows PowerShell) > Type services.msc.
  3. Right-click the NetFlow Storage Service > Stop/Start Netflow Storage service. 
Part 2. Delete the following data by reconnecting to the service directly through SolarWinds fastbit studio:

        1. All partitions for the NTA Flow Storage Database past the retention period.
        2. All data in the toBeDeleted folder, which are kept in the NTA Flow Storage database.
        3. The partTN_map file. 

Part 3. Restart the SolarWinds NetFlow Service (follow the same procedures on 'Step 1'). 

The server is now connected to the NetFlow storage database. 

Applies to: NTA v4.2 and earlier
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