C# - Difficulty with Asynchronous File Reading and Handling Exceptions in a Stream
I'm not sure how to approach Could someone explain I'm working on a C# application (.NET 6) that reads large text files asynchronously to improve performance, but I'm running into issues when handling exceptions that occur during the file read operation. Specifically, I'm working with a `System.IO.IOException` for files that may be locked by another process or inaccessible due to permissions. I’m using the `StreamReader` class inside an async method, and I want to ensure that my exception handling is robust enough to handle these scenarios gracefully. Here's the code I'm using to read the file asynchronously: ```csharp public async Task<string> ReadFileAsync(string filePath) { try { using (var streamReader = new StreamReader(filePath)) { return await streamReader.ReadToEndAsync(); } } catch (IOException ex) { // Log exception and return a friendly message Console.WriteLine($"behavior reading file: {ex.Message}"); return "File could not be read."; } } ``` I've tried catching `IOException`, but in some scenarios, particularly when the file is in a locked state, the exception isn't being caught as expected, and it results in an unhandled exception that crashes the application. I've also tried wrapping the call to `ReadFileAsync` in a global exception handler, but that doesn't capture the specific errors occurring inside the method. Also, I'm unsure if it's a good approach to log the exact exception messages in production, as they might expose sensitive information. What’s the best practice here to handle these exceptions without crashing the application? Should I consider implementing a retry mechanism or using a different approach for reading files asynchronously? Any guidance on improving the behavior handling in this scenario would be greatly appreciated! This is happening in both development and production on Linux. How would you solve this? For context: I'm using C# on Ubuntu 22.04. Could someone point me to the right documentation?