Introduction

Implementation of a distributed file system. We use UDP to detect failures and TCP to execute the file commands.

Contributor

Chunhao Shen, Siyu Ye, Xiya Fan, Hange Liu

Installation

Build and deploy with

**Make all**

Warning

Wirte your own makefile to deploy. The original content in makefile is only supported during the course.

Usage

To run on local host:

** go run main.go debug **

To run across machines:

** go run main.go **

Commands

To deploy a intro node

** join intro**

To deploy a ordinary node

** join [port_number]**

To leave the system

** leave **

To get node info

** id **

To list members of the system

** members **

To put a file

** put [local_filepath] [filename] **

To get a file

** get [filename] [local_filepath] **

To delete a file

** delete [filename] **

To get a list of servers with a file

** ls [filename] **

To get a list of files on the server

** store  **

To run maple(map) command

** maple <exec_filename> <number_of_maple> <sdfs_intermediate_file_prefix> <input_filename> **

To run juice(reduce) command To get a list of files on the server

** juice <exec_filename> <number_of_juice> <sdfs_intermediate_file_prefix> <output_filename> <delete_intermediate_file_or_not> <method_of_dividing_task(hash or not)> **

See example map_reduce command in "command_backup". See example executable file and source code file in "/mj_exe"