PrestoDB: Running PrestoDB on Amazon EMR
A guide to configuring and running PrestoDB on Amazon EMR, including Hive metastore connectivity, required files, Thrift ports, and cluster setup.
Read the postWell, that escalated quickly.
Notes on code, startups, and the decisions behind the software. From our team in Cambridge, MA.
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344 posts
Musing: Should everyone learn to code?
Why basic programming education can help everyone understand computing, solve everyday problems, and recognize opportunities for automation in school and work.
Read the postHive: Hive in 15 minutes on Amazon EMR
A hands-on guide to launching Hive on Amazon EMR, loading Wikipedia pageview data into HDFS, creating an external table, and running queries.
Read the postHive: How to write a custom SerDe class
How to build a custom Hive SerDe class that parses HDFS logs, transforms fields such as IPs and timestamps, and handles version-specific dependencies.
Read the postSQL Join Checker, Making Sure Your Joins Are Right
A PHP SQL join checker parses hand-written queries against database foreign keys to catch incorrect joins and reveal missing constraints.
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