~/talk

Hadoop Gets Groovy

on YouTube 20m
Talkat Berlin Buzzwords 2012 · 2012-06-04..06-05· [data-engineering]

speaker

name:Steve Loughran
links:none on file

resources

video:https://youtu.be/c-WF6Ga62uE
slides:none on file

summary

Shows how Groovy and a tiny helper library Grumpy run inside Hadoop to process ~10GB of Bluetooth scan logs, with a sliding-window debounce implemented in the mapper to merge repeated sightings within ~30s instead of shuffling everything to reducers. Demonstrates dynamic Groovy scripts (map/reduce code bundled as config text and compiled at job time) and Configuration extensions that add easy get/set and map loading. Notes: watch pre‑Java7 performance and Groovy truthiness (empty strings/null) pitfalls.

AI-written summary · about

chapters (4)

  1. 0:00Introduction
  2. 5:42Bluetooth Data
  3. 15:31Groovy
  4. 18:07Questions

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