Design and implement a distributed file system (DFS) with support for large file storage and efficient retrieval. The system should handle concurrency, fault tolerance, and provide a mechanism for load balancing across multiple servers.

Requirements:

1. Implement file chunking and storage distribution across different servers.
2. Design a metadata management system to keep track of file chunks and their locations.
3. Ensure data consistency and integrity during concurrent access and system failures.
4. Develop a client-side library to interact with the DFS, providing functions for file upload, download, and deletion.
5. Incorporate a load balancing strategy to distribute requests evenly across servers.
6. Provide a recovery mechanism to handle server failures without data loss.