ninabreznik / vivaldi-demo

Demo app using netowrk-map and geohash-plus modules to calculate geolocation based on the network location (latency triangulation))

vivaldi demo app

clone https://github.com/ninabreznik/vivaldi-demo.git

cd vivaldi-demo

npm install

npm start 1 9000

get-nodes.js

• creates demo nodes with default vivaldi locations and random geohash
• 13 of the nodes are assigned the same geohash ('tu')

scenario/1.js

• spawns x processes in parallel

app/index.js

• logic of a single process:
  • creates a hyperbee instance (db)
  • in regular interval connects to a random node and measures the RTT
  • updates its vivaldi coordinates and publishes its new coordinates + random other node's coordinates to the db
  • responds to other node's requests (with simulated latency, based on the distance between geohashes)
  • in regular intervals each running proess logs a full map of that node
    • checks for every node if it is part of the 'tu' geohash and logs the results