Elasticsearch

Notes

http://techbus.safaribooksonline.com/video/programming/9781491910795/-databases-and-datastores/141-2014-10-23?query=((elasticsearch))#snippet

use cases

• searching pieces of pure text
• searching text + structured data (products, user profiles, application logs)
• pure aggregated data (stats, metrics, etc)
• geo search
• distributed JSON document DB (anything) - not really a use case

at high level

• is a database, like other
• document oriented
• clusters
• built on Lucene
• build on an IR foundation (information retrieval)
• can perform fancy tricks with inverted indexes and automata (???)

basics of ES api

getting data in

storing a document

verb: PUT
index: literature
type: quote
docId: one
document: {json}

curl -XPUT http://localhost:9200/literature/quote/one -d'
{
  "person": "Jack Handy",
  "said": "The face of a child can say it all, especially the mouth part of the face"
}'

where does the document go

indexes live in the cluster, documents live in indexes