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luigi-demo's Introduction

What is Luigi?

Luigi is an open-source framework for building data pipelines, and managing workflows. It handles dependency management and helps with scheduling complex batch jobs.
See https://github.com/spotify/luigi

Scheduling and running ETLs is a great use case for Luigi.

##Installation Mysql Setup

  • Download and install mysql.connector https://dev.mysql.com/downloads/connector/python/
  • pip install mysql-connector-python --allow-external mysql-connector-python
  • mysql.server start
  • Open local mysql mysql
  • create database luigi_db;
  • use luigi_db;
  • create table children_stories_count (name VARCHAR(20), quantity INT(10), updated DATE);

PyYaml Installation

Luigi Installation

  • pip install luigi

Luigi Demo

This demo creates and seeds a local mysql database by reading and parsing multiples yaml files.
python mysql_etl_tasks.py Seeds

Start the first ETL
python mysql_etl_tasks.py StoryCount 2015-08-20-2015-08-30

The class 'StoryCount' requires an instance of the class 'Markers' which will insert a mark in the Marker table every time 'StoryCount' is run

###To Do Building off the StoryCount create additional ETL that extract and transform data, and insert a mark in the marker table when complete.

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