Introduction

2 hour ServerTrack challenge. Note the Dropwizard example application was used as a starting point for this project.

Overview

Server Load This specific challenge is called ServerTrack and allows you to demonstrate how you might implement a basic server monitoring system.

In this project, two API endpoints are necessary. They are:

1. Record load for a given server This should take a:

server name (string) CPU load (double) RAM load (double) And apply the values to an in-memory model used to provide the data in endpoint #2.

2. Display loads for a given server

This should return data (if it has any) for the given server:

A list of the average load values for the last 60 minutes broken down by minute A list of the average load values for the last 24 hours broken down by hour Both endpoints would be under a continuous load being called multiple times a second. There is no need to persist the results to storage.

Running The Application

To test the example application run the following commands.

• To package the example run.

    mvn package
  

• To setup the h2 database run.

    java -jar target/ServerTrack-0.8.0-rc2-SNAPSHOT.jar db migrate example.yml
  

• To run the server run.

    java -jar target/ServerTrack-0.8.0-rc2-SNAPSHOT.jar server example.yml
  

• To post data into the application.

  curl -H "Content-Type: application/json" -X POST -d '{"serverName":"name","cpuLoad":"33.3","memLoad":"22.2"}' http://localhost:8080/records

or type the following into the browser

http://localhost:8080/records?serverName=name&cpuLoad=33.3&memLoad=22.2

• To view server data.

  open http://localhost:8080/server/name/byMinute

  open http://localhost:8080/server/name/byHour