Accounts Vertx

This is an example of an application using Crabzilla with Vertx

Eventmodeling

Requirements

• Java 11

• Maven

• Docker compose

Building

1 - Start Postgres:

docker-compose up

2 - Build it, running both unit and integration tests:

mvn clean install

Running

1 - Start Postgres if no already started:

docker-compose up

2 - Run it:

mvn compile exec:java

Transfer test

Open an account 1 with 110.00 and 2 with 0.00 then make a 100.00 transfer from account 1 to 2:

docker run --network host -i loadimpact/k6 run - <./k6/transfer.js

Stress test

Opening many accounts with 1000 virtual users during 60 seconds:

docker run --network host -i loadimpact/k6 run --vus 1000 --duration 60s - <./k6/open-many-accounts.js

And you will see something like:

         /\      |‾‾| /‾‾/   /‾‾/
     /\  /  \     |  |/  /   /  /
    /  \/    \    |     (   /   ‾‾\
   /          \   |  |\  \ |  (‾)  |
  / __________ \  |__| \__\ \_____/ .io

  execution: local
     script: -
     output: -

  scenarios: (100.00%) 1 scenario, 1000 max VUs, 1m30s max duration (incl. graceful stop):
           * default: 1000 looping VUs for 1m0s (gracefulStop: 30s)

     data_received..................: 73 MB  1.2 MB/s
     data_sent......................: 40 MB  662 kB/s
     http_req_blocked...............: avg=136.6µs  min=905ns    med=2.44µs   max=143.51ms p(90)=3.85µs   p(95)=5.44µs
     http_req_connecting............: avg=126.86µs min=0s       med=0s       max=143.48ms p(90)=0s       p(95)=0s
     http_req_duration..............: avg=400.31ms min=247.89ms med=412.89ms max=1.6s     p(90)=493.05ms p(95)=519.8ms
       { expected_response:true }...: avg=400.31ms min=247.89ms med=412.89ms max=1.6s     p(90)=493.05ms p(95)=519.8ms
     http_req_failed................: 0.00%  ✓ 0          ✗ 149892
     http_req_receiving.............: avg=52.97µs  min=12.58µs  med=30.14µs  max=27.18ms  p(90)=74.23µs  p(95)=128.07µs
     http_req_sending...............: avg=58.91µs  min=6.81µs   med=14.85µs  max=118.76ms p(90)=25.13µs  p(95)=34.21µs
     http_req_tls_handshaking.......: avg=0s       min=0s       med=0s       max=0s       p(90)=0s       p(95)=0s
     http_req_waiting...............: avg=400.19ms min=247.83ms med=412.83ms max=1.6s     p(90)=492.96ms p(95)=519.69ms
     http_reqs......................: 149892 2478.86634/s
     iteration_duration.............: avg=400.91ms min=248.26ms med=413.17ms max=1.74s    p(90)=493.45ms p(95)=520.14ms
     iterations.....................: 149892 2478.86634/s
     vus............................: 1000   min=1000     max=1000
     vus_max........................: 1000   min=1000     max=1000