File Tree Scanner Script for Large-Scale Data

This Python script efficiently generates a file tree and outputs a CSV manifest of all files, including their paths, sizes, last modified timestamps, and last accessed timestamps. The script uses multi-threading and the scandir function to handle very large datasets across potentially millions of files.

Features

• Efficient Directory Scanning: Utilizes os.scandir for faster directory traversal.
• Multi-threading: Uses concurrent.futures.ThreadPoolExecutor to parallelize directory scanning and maximize CPU usage.
• Organized Output: Outputs a CSV file with the following columns:
  • path: Full path of the file.
  • size: Size of the file in bytes.
  • last_modified: Last modification time in YYYY-MM-DD HH:MM:SS format.
  • last_accessed: Last access time in YYYY-MM-DD HH:MM:SS format.
• Error Handling: Gracefully handles permission errors and skips inaccessible files or directories.
• Scalable: Designed for large-scale data environments, capable of handling PB-scale data efficiently.

Requirements

• Python 3.6+
• No external dependencies (standard library only)

Usage

1. Clone or copy the script

Save the script to your local machine with a .py extension.

2. Run the script

python file_tree_scanner.py