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Directory permission exception with multiple concurrent users on linux #7172
Description
System Information (please complete the following information):
- OS & Version: Linux Ubuntu 22.04.4 LTS
- ML.NET Version: ML.NET 3.0.1
- .NET Version: .NET 8.0
Describe the bug
When multiple users are running ML.NET on the same server. each process seems to require a temporary directory - however its name is hardcoded and the second user running ml.net will fail because /tmp/ml_dotnet is not accessible.
2024-06-08 20:00:31.5387|FATAL|Datahunter.Core.Helpers.MLHelper|Error initializing ML Model System.UnauthorizedAccessException: Access to the path '/tmp/ml_dotnet/hetgfm5v.kvn' is denied.
---> System.IO.IOException: Permission denied
--- End of inner exception stack trace ---
at System.IO.FileSystem.CreateDirectory(String fullPath, UnixFileMode unixCreateMode)
at System.IO.Directory.CreateDirectory(String path)
at Microsoft.ML.Repository.GetShortTempDir(IExceptionContext ectx)
at Microsoft.ML.Repository..ctor(Boolean needDir, IExceptionContext ectx)
at Microsoft.ML.RepositoryReader..ctor(Stream stream, IExceptionContext ectx, Boolean useFileSystem)
at Microsoft.ML.RepositoryReader.Open(Stream stream, IExceptionContext ectx, Boolean useFileSystem)
at Microsoft.ML.ModelOperationsCatalog.Load(Stream stream, DataViewSchema& inputSchema)
To Reproduce
Steps to reproduce the behavior:
- Launch one process with user one
- Launch same process with user two
- User two will get an IOException
Expected behavior
Temporary directory should be unique for each user
Activity
ErikApption commentedon Jun 19, 2024
If anyone else is having this issue, you can configure TMPDIR as workaround