IBM Research Africa - SWE Internship

Software design architecture for building loosely coupled, distinct services

Summer Internship Exit Presentation

IBM Research Africa - SWE Intern

The End

Where to ...

Queen's University Belfast

MSc. Applied Cyber Security

Special Thank You!

• Juliet Mutahi (Mentor)
• David Kaguma (Mentor)
• Tonya Nyakeya
• Felix Kwizera
• Isaac Wambugu
• Violette Ogega
• Shelby Darnell
• Samuel Karumba
• Abdigani Diriye
• Kommy Weldemariam (Manager)

Next steps for the project

• Use statistical techniques on the raw data
• Building runtime signatures to detect anomalies
• Design an algorithm to determine when a microservice is not running optimally and assign health score based on this

What I learned...

Technical

• Basics of Java Spring Boot Framework
• JUnit
• Mockito
• Locust
• System Design Principles
• System Scalability Introduction

Growth

Insights & Recommendations

• Language agnosticity
• Better analytical skills

Results

• Latency is 4s on average through AS
• AS Instances 1 ; WPE Instance 2
• Horizontal vs Vertical Scaling of AS
• Caching near AS ; ETags

3. Difference in response time: WPE vs AS

Straight to WPE

From App Server

• Clients
• Hatch Rate
• Run Time

Important Terms

Insights & Recommendation

Results

• Get All Wp & Filter Wp by type
• Caching
• Compression
• Reset and Change Password
• Code profiling

2. Average and Minimum Response Times

2. Integration & Load testing (Python)

What I did?

Why Locust (as compared to JMeter)?

• High code support and test flexibility
• Less resource consumption

Insights & Recommendations

Results

• Write locks
• Master-slave replication
• Caching
• Bucket data - pagination

1. Average and Minimum Response Times at a Max Load

MWA Project Architecture

What I did?

1. Unit testing (Java)

Why Mockito?

Expressive

Why Microservices?

Project Overview

Outline

Granular Scaling

Mixed Technology Stack

• Who am I?
• Project overview
• What I did?
• Results & Recommendations
• Where to...

Independent Deployment

Who am I?

Independent Development

• Anthony George Mendonca
• BSc. Computer Science, University of Nairobi (2017)
• Safaricom, Lynk Jobs Limited
• Python, JS
• Love travelling, CrossFit and gaming

Diagnosis and testing tool for

Cloud-Based Microservices

Anthony Mendonca

30th August 2018