Another IOException in Grid Node service

Hello,

I'm also getting an IOException in the grid node service. I'm unsure if this is the same cause as the other thread as the exception message is not the same. I have the VS2022 preview 7 installed on a server and my developer machine. I am unable to attempt the same temporary solution as in the other thread because this message does not indicate a file path. May be a permissions issue? But still I have no idea where it would be.

Thank you!

Application: NCrunch.GridNode.Service.exe
Framework Version: v4.0.30319
Description: The process was terminated due to an unhandled exception.
Exception Info: System.IO.IOException
at System.IO.__Error.WinIOError(Int32, System.String)
at System.IO.FileSystemEnumerableIterator`1[[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].AddSearchableDirsToStack(SearchData)
at System.IO.FileSystemEnumerableIterator`1[[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].MoveNext()
at System.Collections.Generic.List`1[[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]]..ctor(System.Collections.Generic.IEnumerable`1<System.__Canon>)
at System.IO.Directory.GetFiles(System.String, System.String, System.IO.SearchOption)
at nCrunch.Common.IO.DirectoryPath.GetAllFiles(System.String)
at nCrunch.GridNode.StorableSnapshot.RefreshKnownFiles()
at nCrunch.GridNode.StorableSnapshot..ctor(nCrunch.Common.IO.DirectoryPath)
at nCrunch.GridNode.NodeSnapshotStore.(System.Object)
at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
at System.Threading.QueueUserWorkItemCallback.System.Threading.IThreadPoolWorkItem.ExecuteWorkItem()
at System.Threading.ThreadPoolWorkQueue.Dispatch()

Hi, thanks for sharing this issue.

This does look like a file access problem. The first thing I'd try here is to clear out the Node's snapshot storage directory, then recreate it and make sure that the node service has access to it.

It might also be worth to try running the node using NCrunch.GridNode.Console.exe instead of the service executable. This this will allow it to run under a different user profile, which may prove whether the issue is related to user access privileges.

There was indeed a corrupted folder in the snapshot directory. Got rid of it and everything works fine!

Thank you!