Boxball: Prebuilt baseball stats databases using Docker

David Roher — Fri, 14 Jun 2019 15:17:40 +0000

Boxball creates prepopulated databases of the two most significant open source baseball datasets: Retrosheet and the Baseball Databank. Retrosheet contains information on every major-league pitch since 2000, every play since 1937, every box score since 1906, and every game since 1871. The Databank (based on the Lahman Database) contains yearly summaries for every player and team in history. In addition to the data and databases themselves, Boxball relies on the following tools:

Docker for repeatable builds and easy distribution
SQLAlchemy for abstracting away DDL differences between databases
Chadwick for translating Retrosheet's complex event files into a relational format

Follow the instructions below to install your distribution of choice. The full set of images is also available on Docker Hub.

The Retrosheet schema is extensively documented in the code; see the source here until I find a prettier solution.

If you find the project useful, please consider donating to:

The Ali Forney Center for homeless LGBTQ youth
350.org, a grassroots international climate change organization

Feel free to contact me with questions or comments!

Requirements

Docker (v18.06, earlier versions may not work)
2-20GB Disk space (depends on distribution choice)
500MB-8GB RAM available to Docker (depends on distribution choice)

Distributions

Column-Oriented Databases

Postgres cstore_fdw

This distribution uses the cstore_fdw extension to turn PostgreSQL into a column-oriented database. This means that you get the rich featureset of Postgres, but with a huge improvement in speed and disk usage. To install and run the database server:

docker run --name postgres-cstore-fdw -d -p 5433:5432 -v ~/boxball/postgres-cstore-fdw:/var/lib/postgresql/data doublewick/boxball:postgres-cstore-fdw-0.0.2

Roughly an hour after the image is downloaded, the data will be fully loaded into the database, and you can connect to it on port 5433 (either using the psql command line tool or a database client of your choice). The data will be persisted on your machine in ~/boxball/postgres-cstore-fdw (~1.5GB), which means you can stop/remove the container without having to reload the data when you turn it back on.

Clickhouse

Clickhouse is a database developed by Yandex with some very impressive performance benchmarks. It uses less disk space than Postgres cstore_fdw, but significantly more RAM (~5GB). I've yet to run any query performance comparisons. To install and run the database server:

docker run --name clickhouse -d -p 8123:8123 -v ~/boxball/clickhouse:/var/lib/clickhouse doublewick/boxball:clickhouse-0.0.2

15-30 minutes after the image is downloaded, the data will be fully loaded into the database, and you can connect to it either by attaching the container and using the clickhouse-client CLI or by using a local database client on port 8123.

Drill

Drill is a framework that allows for SQL queries directly on files, without having to declare any schema. It is usually used on a computing cluster with massive datasets, but we use a single-node setup. To install and run:

docker run --name drill -id -p 8047:8047 -p 31010:31010 -v ~/boxball/drill:/data doublewick/boxball:drill-0.0.2

Data will be immediately available to query after the image is downloaded. Use port 8047 to access the Web UI (which includes a SQL runner) and port 31010 to connect via a database client.
You may also attach the container and query from the command line.

Traditional (Row-oriented) Databases

Note: these frameworks are likely to be prohibitively slow when querying play-by-play data, and they take up significantly more disk space than their columnar counterparts.

Postgres

Similar configuration to the cstore_fdw extended version above, but stored in the conventional way.

docker run --name postgres -d -p 5432:5432 -v ~/boxball/postgres:/var/lib/postgresql/data doublewick/boxball:postgres-0.0.2

Roughly 90 minutes after the image is downloaded, the data will be fully loaded into the database, and you can connect to it on port 5432
(either using the psql command line tool or a database client of your choice).

MySQL

To install and run:

docker run --name mysql -d -p 3306:3306 -v ~/boxball/mysql:/var/lib/mysql doublewick/boxball:mysql-0.0.2

Roughly two hours after the image is downloaded, the data will be fully loaded into the database, and you can connect to it on port 3306.

SQLite (with web UI)

To install and run:

docker run --name sqlite -d -p 8080:8080 -v ~/boxball/sqlite:/db doublewick/boxball:sqlite-0.0.2

Roughly two minutes after the image is downloaded, the data will be fully loaded into the database. localhost:8080 will provide a web UI where you can write queries and perform schema exploration.

Flat File Downloads

Parquet

Parquet is a columnar data format originally developed for the Hadoop ecosystem. It has solid support in Spark, Pandas, and many other frameworks.
OneDrive

CSV

The original CSVs from the extract step (folder stored as .tar.gz).
OneDrive

Acknowledgements

Ted Turocy's Chadwick Bureau developed the tools and repos that made this project possible. I am also grateful to Sean Lahman for creating his database, which I have been using for over 15 years. I was able to develop and host this project for free thanks to the generous open-source plans of CircleCI, Github, and Docker Hub.

Retrosheet represents the collective effort of thousands of baseball fans over 150 years of scorekeeping and data entry. I hope Boxball facilitates more historical research to continue this tradition.

Forem: David Roher