During the New York Search, Discovery and Analytics group in November, we did a presentation on Introduction to Elasticsearch. It was about how you can use Elasticsearch to store, search and analyze your data in near-realtime. It included a demo on the basic functionality (index, retrieve, update, delete, search, facet) as well as scaling, and some tips for performance tuning and monitoring your Elasticsearch cluster.
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If you attended, you might want to see Gilt’s blog post about it, which includes some nice pictures. If you didn’t attend, of if you just want to refresh your memory, you can find the video (courtesy of g33ktalk) and the slides below.