README.md

Random Prime Numbers (Redis Test App)

This is erlang application created to show up a way of working with Redis KV storage.

There are 2 gen_server processes:

• rpn_generator - uniformly generates random numbers from 2 to given N with given Numbers per second requirement, and push them to given Redis List Key;
• rpn_filter - once a second fetches no more than 2*N numbers from Redis List Key, filter them for prime numbers and pushes result to the given Redis Result Set Key.

Configuration parameters (with default values):

• manual_start(false) - postpones timers initialization if true;
• numbers_per_sec(3000) - number of random numbers to generate and push to redis per second;
• n - random number upper boarder;
• rdb_list_key - redis list key to push random numbers in;
• rdb_result_set_key - redis result set key to push prime numbers in;
• pools - several options for managing pool of connections to redis.

Docker-compose run

1. check .env, sys.config.src file to set needed configuration parameters
2. run:
   • docker-compose up --build --force-recreate
3. or build and run:
   • docker-compose build
   • docker-compose up

Local run

1. check sys.config file to set needed configuration parameters
2. make sure you have redis running on configured host/port
3. run
   • rebar3 as local shell
4. or build and run
   • rebar3 as local release
   • _build/local/rel/rpn/bin/rpn console|foreground

Run Tests

rebar3 eunit