_,.---._    ,--.--------.   ,---.        ,-,--.          .=-.-..=-.-. 
  ,-.' - ,  `. /==/,  -   , -\.--.'  \     ,-.'-  _\        /==/_ /==/_ / 
 /==/ ,    -  \\==\.-.  - ,-./\==\-/\ \   /==/_ ,_.'       |==|, |==|, |  
|==| - .=.  ,  |`--`\==\- \   /==/-|_\ |  \==\  \          |==|  |==|  |  
|==|  : ;=:  - |     \==\_ \  \==\,   - \  \==\ -\         /==/. /==/. /  
|==|,  '='  ,  |     |==|- |  /==/ -   ,|  _\==\ ,\        `--`-``--`-`   
 \==\ _   -    ;     |==|, | /==/-  /\ - \/==/\/ _ |        .=.   .=.     
  '.='.  ,  ; -\     /==/ -/ \==\ _.\=\.-'\==\ - , /       :=; : :=; :    
    `--`--'' `--`    `--`--`  `--`         `--`---'         `=`   `=`

What is Qtas

Qtas（Quite a Storage）is a experimental distributed storage system developed by Q-team in BJFU Advanced Computer Network sources.

Why names Qtas?

  • Q means ours team’s name;
  • s means this project is focusing on the development of Storage system;
  • Quite a Storage includes all our wishes to finish this job && make it perfect;
  • This is Qtas ?

What’s in it?

  • A virtual file system supports remote managing;
  • IPv6 support
  • distributed storage system
  • least surprising interaction surface for UNIX users
  • … still finding something cool to add

Function List

File System Operations

  1. pwd：print work directory
    pwd [] ()
  2. cd：change directory
    “
  3. ls：list files
    “
  4. cat：
    “
  5. cp
    “
  6. mv
    “
  7. find
    “
  8. chmod
    “
  9. sudo
    “
  10. rm
    “
  11. tree
    “
  12. …

for Root users

for Normal users

Connection

  1. netstat
  2. QAQ

CLI

Log System

Man Page

  • opRead( str ) -> list
    To analyse a command series, and split the str into list
    with the respect of ” “. Meanwhile, formatize the operations
    with UNIX-Style.
  • printLogo()
  • printHelp()
  • opSplit( str command_list ) -> operation, optional, args
  • opShow(command_list)

Working Flow

  • P2P 弱化了 C/S 的概念，在网络中每一个节点既可能是server，也可以是client，可以把发起请求的称为client，而接受请求的为server；
  • 把整个计算机集群看作一个大的server，发起请求的时候，谁先响应谁先处理，响应一个请求后，server端广播集群，开始处理请求；
  • 需要有信号量机制，保证服务器同步；
  1. client向服务器广播，发起请求寻找file1

打开程序

GitHub

View Github