Elasticsearch VilniusPHP

Elasticsearch presentation at VIlnius PHP 2013 09 05

Resources:
http://elasticsearch.org
http://git.io/esp
http://git.io/bigdesk

Transcript

1. elasticsearch
2. Simonas Šerlinskas Software engineer at NFQ simonas.serlinskas@nfq.lt
3. Distributed Based on Apache Lucene HTTP + JSON Document based Schema free Real time search Advanced features What is elasticsearch?
4. IT’S NOT KEY-VALUE STORE ENGINE
5. You know, for search.
6. They are also using
7. Big changes since v0.25 Now its faster More sorting capabilities Did you mean support Multiple documents in 1 query *And other 30 millions features (that means a lot)
8. Setup and run Cool out of the box ;) Download, extract or install $ bin/elasticsearch -f
9. Shards Splits index into parts By default index has 5 shards Automatically balance data between shards
10. Replication Data shared between nodes Nodes connect automatically
11. Data import Support mapping Other columns in type can be added Support arrays $ curl -XPUT 'http://localhost:9200/twitter/tweet/_mapping' -d ' { "tweet" : { "properties" : { "message" : {"type" : "string", "store" : "yes"} } } } '
12. Boost values Each field could have different weight Results will be sorted according match $ curl -XPUT 'http://localhost:9200/twitter/tweet/_mapping' -d ' { "tweet" : { "_boost" : {"name" : "my_boost", "null_value" : 3.0} } } '
13. Searching
14. Filter vs query Filters are cached and faster Could be combined Filter is useful for range, max, min, etc.. Query DSL is like AST (abs. syntax tree)
15. Must, should Does what it says Could be combined
16. Analyzers Waxolutionists - The smart blip experience, unopened, only 20$!
17. Advanced search Highlighted results Results and suggestions Results and facets Autocomplete
18. Highlight Automatically sets tags around phrase Highly customizable
19. Suggestions Elasticsearch can predict what you had in mind Lists results by similarity and frequency $ curl -XPOST http://localhost:9200/_suggest -d ’ { "text": "John", "my-suggestion": { "term": { "field": "name" } } } ‘ my-suggestion: [ { text: jonh offset: 0 length: 4 options: [ { text: john score: 0.85 freq: 15 }, { text: jonathan score: 0.75 freq: 5 } ] } ]
20. Facets Results can be grouped and counted Group several columns at once Also get results { "query": { "query_string": { "query": "Jo*" } }, "facets": { "tags": { "terms": { "field": "country" } } } }
22. Completion suggest Faster than prefix search Store additional info for inserts curl -X PUT localhost:9200/music/song/_mapping -d '{ "song" : { "properties" : { "name" : { "type" : "string" }, "suggest" : { "type" : "completion", "index_analyzer" : "simple", "search_analyzer" : "simple", "payloads" : true } } } }
23. Literature http://elasticsearch.org http://git.io/esp http://git.io/bigdesk
25. DEMO