OpenStreetMap and Hadoop

Posted by portoalet on Stack Overflow See other posts from Stack Overflow or by portoalet
Published on 2010-03-26T12:38:50Z Indexed on 2010/03/26 12:43 UTC
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Filed under:

hadoop

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openstreetmap

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amazon-ec2

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mapreduce

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postgresql

Hi,

I need some ideas for a weekend project about Hadoop and OpenStreetMap.

I have access to AWS EC2 instance with OpenStreetMap snapshot in my EBS volume. The OpenStreetMap data is in a PostgreSQL database.

What kind of MapReduce function can be run on the OpenStreetMap data, assuming I can export them into xml format, and then place into HDFS ?

In other words, I am having a brain cramp at the moment, and cannot think what kind of MapReduce operation that can extract valuable insight from the OpenStreetMap xml?

(i.e. extract all the places designated as park or golf course. But this needs to be done once only, not continuously)

Many Thanks

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