charlesBochet/reddit-mongodb-aggregation

reddit-mongodb-aggregation

Objectives

Test mongoDB aggregations

Installation

Prerequesites: You need to have docker and docker-compose installed. (docker --version to make sure you have it)

1. docker-compose build

2. docker-compose up -d

3. [Optional] To detach your console, you can press CTRL+P and CTRL+Q

4. [Optional] Make sure your container is running: docker-compose ps

5. [Optional] Make sure Mongo is listening: curl localhost:27018

Download dataset RC_2015-1:

We are going to use Reddit comment dump shared by reddit user \Stuck_In_the_Matrix (thank you!)

• Original post: https://www.reddit.com/r/datasets/comments/3bxlg7/i_have_every_publicly_available_reddit_comment/
• Torrent link: https://mega.nz/#!ysBWXRqK!yPXLr25PgJi184pbJU3GtnqUY4wG7YvuPpxJjEmnb9A

Import Reddit Dataset

1. docker exec -i -t mongo-db /bin/bash
2. mongo
3. Create a new reddit database and comments collection
4. Exit mongo
5. From Host: Unzip RC_2015-01 file and move it to ./shared folder
6. From Container: cd /shared and mongoimport --db reddit --collection comments --file RC_2015-01

Run aggregations

Example: