Distributed database modelling
Modelling of a distributed database where requests (arriving as a Poisson process) are routed by a coordinator to several servers. A full report comes with the public repository.
Image gallery1
— Open the full-size image (opens in a new tab)Model diagram: requests arrive following a Poisson law at a coordinator with a queue, which distributes them across several database servers, each with its own queue, before exiting or returning to the coordinator
Problem
Determine under which conditions such a system reaches a stable steady state.
Solution
Modelling as a Jackson queueing network, analysing the key parameters: number of servers, service times, arrival rate and exit probabilities.
My role
Project published on my GitHub.
Features
- Requests routed by a coordinator according to probabilities
- Exponential service times per server
- Steady-state stability study
- Full report in PDF format