Design Distributed File System
StorageHard
Design a distributed file system that can store and retrieve large files across multiple servers, while providing reliability, availability, and consistency guarantees.
Requirements
- The system should support operations like create, read, write, and delete on files.
- Files should be replicated across multiple servers for redundancy.
- The system should handle server failures gracefully.
- The file system should provide proper consistency guarantees.
- The system should support efficient access to large files.
Constraints
- The system should handle petabytes of data.
- File operations should have reasonable latency.
- The system should be scalable as data volume grows.
- Network bandwidth should be used efficiently.
Example Scenarios
A large file (10GB) needs to be stored in the distributed file system.
Key Considerations:
- How will you split the file across multiple servers?
- How many replicas will you maintain and how will you distribute them?
- How will you handle consistency when updates occur?
- How will you recover if a server holding part of the file goes down?
Multiple clients are attempting to write to the same file simultaneously.
Key Considerations:
- What concurrency control mechanisms will you implement?
- How will you handle conflicting writes?
- What consistency model will you provide to clients?
- How will the system perform under heavy write contention?
Your Solution
Submission Guidelines
- • Include a high-level architecture diagram
- • Define system components and their interactions
- • Address scaling and reliability concerns
- • Explain trade-offs in your design decisions
- • Consider failure scenarios and how to handle them