KV Store

A grpc-based and flask-based fault-tolerant distributed key-value storage system implemented in Python .

Preparation

open the cmd.exe and cd to the location of this repository

Compile the proto buffer

In grpc-based system, if you want to change the structure of the default protobuf,you can edit mykvserver.proto according to the standard given by https://developers.google.com/protocol-buffers/docs/proto3 .Then, compile the protobuf by executing

➜ ./compile.bat

How to run the Server

flask mode

The server is initialized with an index and an ip_list.txt

➜ ./setup.bat

grpc mode

The server is initialized with an index and an ip_list2.txt

➜ ./setup_grpc.bat

How to run the Client

flask mode

operation : put,get,del
put usage : 
➜ python client.py put [address] [key] [value]
get usage : 
➜ python client.py get [address] [key] 
get del : 
➜ python client.py get [address] [key] 
Format:
address = http://ip:port

grpc mode

operation : put,get,del
put usage : 
➜ python client.py put [address] [key] [value]
get usage : 
➜ python client.py get [address] [key] 
get del : 
➜ python client.py get [address] [key] 
Format:
address = ip:port

references

• https://raft.github.io/
• https://github.com/Oaklight/Vesper
• https://en.wikipedia.org/wiki/Raft_(computer_science)

Python requirements

• python >= 3.4
  • grpcio==1.24.1
  • Flask==1.0.2
  • requests==2.20.0
  • grpc==0.3-19
  • protobuf==3.11.2

CONTACT

please email me [email protected]