![Search Response
{ "took": 12, "timed_out": false,
"_shards": { "total": 5, "successful": 5, "failed": 0 },
"hits": {
"total": 1, "max_score": 0.5,
"hits": [ {
"_index": "myindex",
"_type": "share",
"_id": "1",
"_score": 0.5,
"_source": {
"url": "http://www.lamper.cn/",
"date": "2012-02-18 13:00:00",
"location": "beijing,北京"
} } ] }}](https://image.slidesharecdn.com/elasticsearch-intro-lamper-120218201407-phpapp01/85/Elastic-search-intro-lamper-14-320.jpg)
More Related Content
Similar to Elastic search intro-@lamper (20)
![From Curiosity to ROI — Cost-Benefit Analysis of Agentic Automation [3/6]](https://cdn.slidesharecdn.com/ss_thumbnails/session-3-250903141006-a3917e1a-thumbnail.jpg?width=560&fit=bounds)
Elastic search intro-@lamper
- 1. ElasticSearch A search engine “ready to fly” Medcl/2012/2/18
- 2. About me • Medcl • medcl@sina • medcl@github • [email protected] • log.medcl.net
- 3. Why I am here? • 好东西需要与大家一起分享！
- 4. What’s elasticsearch • “Distributed, (Near) Real Time, Search Engine” • Open Source（Apache 2.0） • RESTful • Free Schema（Dynamic） • MultiTenant • Scalable • High Availability • Rich Search Features • Good Extensibility • ……
- 8. Let’s start the trip
- 9. Debug Tools
- 10. Index a document curl –XPOST http://localhost:9200/myindex/share/1 -d’ Field 字段内容 字段名称 RESTful { URL地址 "url" : "http://www.lamper.cn/", "date" : "2012-02-18 13:00:00", "location" : "beijing,北京" }’ 索引文档内容， Json格式
- 11. Index Response { "ok": true, "_index": "myindex", "_type": "share", "_id": "1", "_version": 1 }
- 12. Explain the url 索引文档 服务器IP地址 索引名称 唯一标识 http://localhost:9200/myindex/share/1 HTTP端口 索引类型名称
- 13. Query the document ES服务器地址 类型名称 指定查询条件 curl –XGET http://localhost:9200/myindex/share/_search?q =location:beijing 索引名称 搜索RESTful接口 查询条件， 字段名:值
- 14. Search Response { "took": 12, "timed_out": false, "_shards": { "total": 5, "successful": 5, "failed": 0 }, "hits": { "total": 1, "max_score": 0.5, "hits": [ { "_index": "myindex", "_type": "share", "_id": "1", "_score": 0.5, "_source": { "url": "http://www.lamper.cn/", "date": "2012-02-18 13:00:00", "location": "beijing,北京" } } ] }}
- 16. QueryDSL curl -XPOST http://localhost:9200/myindex/_search –d’ { "query": { Why QueryDSL? "term": { Filters、Caching、 "location": "beijing" Highlighting、Facet、 ComplexQuery } …… } }’
- 17. Scalability&HA
- 18. Distributed Lucene Directory • Each index is fully sharded with a configurable number of shards. • Each shard can have zero or more replicas. • Read / Search operations performed on either replica shard.
- 20. Scalability • nodes that can hold data, and nodes that do not. • There is no need for a load balancer in elasticsearch, each node can receive a request, and if it can’t handle it, it will automatically delegate it to the appropriate node(s). • If you want to scale out search, you can simply have more shard replicas per shard.
- 21. Transaction log • Indexed / deleted doc is fully persistent • No need for a Lucene IndexWriter#commit • Managed using a transaction log / WAL • Full single node durability (kill dash 9) • Utilized when doing hot relocation of shards • Periodically “flushed” (calling IW#commit)
- 22. BASE • Each document you index is there once the index operation is done. • No need to commit or something similar to get everything persisted. • A shard can have 1 or more replicas for HA. • Gateway persistency is done in the background in an async manner.
- 23. Not Mentioned Here… • Versioning • Template • River That’s Too Much, • Percolator Discovery it yourself • PartialUpdate • Routing • Parent-Child Type • Scripting • ……
- 24. Community&Support • http://github.com/elasticsearch • http://groups.google.com/group/elasticsearch • Irc:#elasticsearch@freenode • qq群：190605846 • http://doc.elasticsearch.cn • http://s.medcl.net/
- 25. BTW • 招人in’ – 分布式 – 高性能 – 海量数据处理 – 个性化推荐 My – 搜索引擎 Company！ • 对以上任一感兴趣者： – 欢迎加入我们的团伙!
- 26. Thank you!