Distributed AFS built on top of FUSE

The source code is in src. It contains its own README.md explaining how to run the project.

The performance scripts are in pythonfiles. It contains its own README.md explaining how to run the performances.

This part hosts the posix compliant fuse apis: https://github.com/hemal7735/CS739-p2/blob/main/src/fuse-client.cc#L333-L350

• Protocol Primitive : Protos define the interface for client-server communications
• Update Visibility: This is in both afs_client.cc and afs_server.cc in Close() and CloseStream() operation.
• Stale Cache: This is in afs_client.cc in Open() and OpenStream() operations.

• Client-side FUSE-based file system is crash consistent: We are using .temp and .consistent files for crash consistency. More details in report.pdf and slides.pdf.
• Server-side persistence: Server stores files using .temp and atomically rename operation. It is in Close() and CloseStream() functions. More details in report.pdf and slides.pdf.

• Design for client crash: Client contains Garbage Collector and Crash Recovery System that gets activated during startup. Code: https://github.com/hemal7735/CS739-p2/blob/main/src/afs_client.cc#L100-L139
• Design for server crash: similar to client crash - https://github.com/hemal7735/CS739-p2/blob/main/src/afs_server.cc#L548-L565

Graphs are given in slides.pdf and report.pdf

Crash recovery protocol is given in both slides.pdf and report.pdf. Crash demos are hosted here: https://uwprod-my.sharepoint.com/:f:/g/personal/hrpatel5_wisc_edu/EtFDuGALu4JEqsQmdBvuflIBPq7L-0CY5VDWCFwVFMSa7g?e=55K7tJ

• Please see slides.pdf

• Please see report.pdf

• done