README.md

OpenStreetMap Parquetizer

The project intends to provide a way to get the OpenStreetMap data available in a Big Data friendly format as Parquet.

Currently any PBF file is converted into three parquet files, one for each type of entity from the original PBF (Nodes, Ways and Relations).

In order to get started:

git clone https://github.com/adrianulbona/osm-parquetizer.git
cd osm-parquetizer
mvn clean package
java -jar target/osm-parquetizer-1.0.1-SNAPSHOT.jar path_to_your.pbf

For example, by running:

java -jar target/osm-parquetizer-1.0.1-SNAPSHOT.jar romania-latest.osm.pbf

In a few seconds (on a decent laptop) you should get the following files:

-rw-r--r--  1 adrianbona  adrianbona   145M Apr  3 19:57 romania-latest.osm.pbf
-rw-r--r--  1 adrianbona  adrianbona   372M Apr  3 19:58 romania-latest.osm.pbf.node.parquet
-rw-r--r--  1 adrianbona  adrianbona   1.1M Apr  3 19:58 romania-latest.osm.pbf.relation.parquet
-rw-r--r--  1 adrianbona  adrianbona   123M Apr  3 19:58 romania-latest.osm.pbf.way.parquet

The parquet files have the following schemas:

node
 |-- id: long
 |-- version: integer
 |-- timestamp: long
 |-- changeset: long
 |-- uid: integer
 |-- user_sid: string
 |-- tags: array
 |    |-- element: struct
 |    |    |-- key: string
 |    |    |-- value: string
 |-- latitude: double
 |-- longitude: double

way
 |-- id: long
 |-- version: integer
 |-- timestamp: long
 |-- changeset: long
 |-- uid: integer
 |-- user_sid: string
 |-- tags: array
 |    |-- element: struct
 |    |    |-- key: string
 |    |    |-- value: string
 |-- nodes: array
 |    |-- element: struct
 |    |    |-- index: integer
 |    |    |-- nodeId: long

relation
 |-- id: long
 |-- version: integer
 |-- timestamp: long
 |-- changeset: long
 |-- uid: integer
 |-- user_sid: string
 |-- tags: array
 |    |-- element: struct
 |    |    |-- key: string
 |    |    |-- value: string
 |-- members: array
 |    |-- element: struct
 |    |    |-- id: long
 |    |    |-- role: string
 |    |    |-- type: string