https://sites.google.com/a/stonybrook.edu/sbcs535/projects/dns-chord-distalgo

Please run below commands to install below libraries before running this code:

pip install numpy
pip install matplotlib
pip install beautifultable
pip install psutil
pip install tabulate

Distalgo version: 1.1.0b12 Java version: 1.8.0_60

Navigate to open-chord directory
make

Run the Monitor file: Execute following command to run monitor.py file:

python monitor.py runType m n r q s_d f_d p_d prob

Parameters to be passed: runType : where runType is string that you want to vary keeping other parameters fixed. It can be Nodes, Failure, Stabilization_Delay, FixFinger_Delay, CheckPred_Delay, Storage_Load

m = number of bits for finger table size and maximum number of nodes in chord ring. Default value: 5. Constraint: This value should be in between 2 - 16.

n = number of nodes in the chord ring. Default value: 6

r = success list size. Default value: 2

q = number of queries. Default value: 200

s_d = Stabilization delay. Default value: 0.1s. Constraint: This value should be in between 0-1.

f_d = Fix Finger delay. Default value: 0.1s. Constraint: This value should be in between 0-1.

p_d = check predecessor delay. Default value: 0.1s. Constraint: This value should be in between 0 - 1.

prob = Probability failure ratio. Default value: 0.1. Constraint: This value should be in between 0-1.

After running the program, chordTabularResults.txt will contain the tabular results and graphs will be stored in results folder.

Run Following commands to execute all test scenarios on default parameters

python monitor.py Nodes
python monitor.py Failure
python monitor.py Stabilization_Delay
python monitor.py FixFinger_Delay
python monitor.py CheckPred_Delay
python monitor.py Storage_Load

Navigate to open-chord directory
javac -d bin -sourcepath src -cp ./lib/*;./config/chord.properties src/myapp/driver/Driver.java

For Mac/Unix Environment:

java -cp ./open-chord/.:./open-chord/bin:./open-chord/lib/*:./open-chord/chord.properties:./open-chord/config/* myapp.driver.Driver 8 2 1 2 2 2 1 0.6 1

For Windows:

java -cp ./open-chord/.;./open-chord/bin;./open-chord/lib/*;./open-chord/chord.properties;./open-chord/config/* myapp.driver.Driver 8 2 1 2 2 2 1 0.6 1

Open Source Implementation can be found here - https://github.com/jtan189/open-chord.

We have referred the same source code and made changes to include driver program to compare implementations of Chords.