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ElasticSearch at berlinbuzzwords 2010

Elasticsearch
Elasticsearch

The document describes how to build an Amazon-like store using Elasticsearch. It shows how to index book and CD documents specifying the index name, type, and ID. It demonstrates searching across types and indices, and introduces the concept of indices representing different document types like books and CDs. The document provides examples of indexing, searching, and retrieving documents from Elasticsearch.

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You Know, For Search
lightning talk
lightning talk kick ass
lightning talk kick ass ~joke
ping 127.0.0.1
ping 127.0.0.1 icmq_seq=0 name=shay.banon
ping 127.0.0.1 icmq_seq=0 name=shay.banon icmq_seq=1 a.k.a=kimchy
ping 127.0.0.1 icmq_seq=0 name=shay.banon icmq_seq=1 a.k.a=kimchy icmq_seq=2 blog=http://kimchy.org
ping 127.0.0.1 icmq_seq=0 name=shay.banon icmq_seq=1 a.k.a=kimchy icmq_seq=2 blog=http://kimchy.org icmq_seq=3 twitter=kimchy
ping elasticsearch
ping elasticsearch icmq_seq=0 tag=open_source (apache)
ping elasticsearch icmq_seq=0 tag=open_source (apache) icmq_seq=1 tag=distributed
ping elasticsearch icmq_seq=0 tag=open_source (apache) icmq_seq=1 tag=distributed icmq_seq=2 tag=RESTful
ping elasticsearch icmq_seq=0 tag=open_source (apache) icmq_seq=1 tag=distributed icmq_seq=2 tag=RESTful icmq_seq=3 tag=(no_sql) search_engine
ping elasticsearch icmq_seq=0 tag=open_source (apache) icmq_seq=1 tag=distributed icmq_seq=2 tag=RESTful icmq_seq=3 tag=(no_sql) search_engine icmq_seq=4 site=http://www.elasticsearch.com
open_source
open_source apache_2
open_source apache_2 http://github.com/elasticsearch/elasticsearch
open_source apache_2 http://github.com/elasticsearch/elasticsearch fork, push, send_pull
your_data
your_data => your_search
your_data => your_search a product should natively talk the domain model
your_data => your_search a product should natively talk the domain model and not the other way around
recipes for good domain model language
recipes for good domain model language - document_oriented
recipes for good domain model language - document_oriented - schema free
recipes for good domain model language - document_oriented - schema free - include json
recipes for good domain model language - document_oriented - schema free - include json de_facto open_web standard
lets build ourself an amazon store
lets build ourself an amazon store (we will get to the cloud laters)
first thing we have are books
this is how they look like { "book" : { "isbn" : "0812504321", "name" : "Call of the Wild", "author" : { "first_name" : "Jack", "last_name" : "London" }, "pages" : 128, "tag" : ["fiction", "children"] } }
lets index it $ curl -XPUT host:9200/amazon/book/0812504321 -d ‘ { "book" : { "isbn" : "0812504321", "name" : "Call of the Wild", "author" : { "first_name" : "Jack", "last_name" : "London" }, "pages" : 128, "tag" : ["fiction", "children"] } } ‘
... `amazon` is the _index name $ curl -XPUT host:9200/amazon/book/0812504321 -d ‘ { "book" : { "isbn" : "0812504321", "name" : "Call of the Wild", "author" : { "first_name" : "Jack", "last_name" : "London" }, "pages" : 128, "tag" : ["fiction", "children"] } } ‘
... `book` is the _type $ curl -XPUT host:9200/amazon/book/0812504321 -d ‘ { "book" : { "isbn" : "0812504321", "name" : "Call of the Wild", "author" : { "first_name" : "Jack", "last_name" : "London" }, "pages" : 128, "tag" : ["fiction", "children"] } } ‘
... `0812504321` is the _id $ curl -XPUT host:9200/amazon/book/0812504321 -d ‘ { "book" : { "isbn" : "0812504321", "name" : "Call of the Wild", "author" : { "first_name" : "Jack", "last_name" : "London" }, "pages" : 128, "tag" : ["fiction", "children"] } } ‘
search for all fiction books $ curl -XGET host:9200/amazon/book/_search?q=tag:fiction‘
search for all fiction books $ curl -XGET host:9200/amazon/book/_search?q=tag:fiction‘ {"_shards":{"total":5,"successful":5,"failed":0},"hits":{"total":1,"hits": [{"_index":"amazon","_type":"book","_id":"0812504321", "_source" : { "book" : { "isbn" : "0812504321", "name" : "Call of the Wild", "author" : { "first_name" : "Jack", "last_name" : "London" }, "pages" : 128, "tag" : ["fiction", "children"] } }}]}}
... number of total hits $ curl -XGET host:9200/amazon/book/_search?q=tag:fiction‘ {"_shards":{"total":5,"successful":5,"failed":0},"hits":{"total":1,"hits": [{"_index":"amazon","_type":"book","_id":"0812504321", "_source" : { "book" : { "isbn" : "0812504321", "name" : "Call of the Wild", "author" : { "first_name" : "Jack", "last_name" : "London" }, "pages" : 128, "tag" : ["fiction", "children"] } }}]}}
... each hit has the `_index` it came from $ curl -XGET host:9200/amazon/book/_search?q=tag:fiction‘ {"_shards":{"total":5,"successful":5,"failed":0},"hits":{"total":1,"hits": [{"_index":"amazon","_type":"book","_id":"0812504321", "_source" : { "book" : { "isbn" : "0812504321", "name" : "Call of the Wild", "author" : { "first_name" : "Jack", "last_name" : "London" }, "pages" : 128, "tag" : ["fiction", "children"] } }}]}}
... each hit has the `_type` it belongs to $ curl -XGET host:9200/amazon/book/_search?q=tag:fiction‘ {"_shards":{"total":5,"successful":5,"failed":0},"hits":{"total":1,"hits": [{"_index":"amazon","_type":"book","_id":"0812504321", "_source" : { "book" : { "isbn" : "0812504321", "name" : "Call of the Wild", "author" : { "first_name" : "Jack", "last_name" : "London" }, "pages" : 128, "tag" : ["fiction", "children"] } }}]}}
... each hit has its `_id` $ curl -XGET host:9200/amazon/book/_search?q=tag:fiction‘ {"_shards":{"total":5,"successful":5,"failed":0},"hits":{"total":1,"hits": [{"_index":"amazon","_type":"book","_id":"0812504321", "_source" : { "book" : { "isbn" : "0812504321", "name" : "Call of the Wild", "author" : { "first_name" : "Jack", "last_name" : "London" }, "pages" : 128, "tag" : ["fiction", "children"] } }}]}}
... each hit has the actual _source document $ curl -XGET host:9200/amazon/book/_search?q=tag:fiction‘ {"_shards":{"total":5,"successful":5,"failed":0},"hits":{"total":1,"hits": [{"_index":"amazon","_type":"book","_id":"0812504321", "_source" : { "book" : { "isbn" : "0812504321", "name" : "Call of the Wild", "author" : { "first_name" : "Jack", "last_name" : "London" }, "pages" : 128, "tag" : ["fiction", "children"] } }}]}}
... each hit has the actual _source document $ curl -XGET host:9200/amazon/book/_search?q=tag:fiction‘ {"_shards":{"total":5,"successful":5,"failed":0},"hits":{"total":1,"hits": [{"_index":"amazon","_type":"book","_id":"0812504321", "_source" : { "book" : { "isbn" : "0812504321", "name" : "Call of the Wild", "author" : { "first_name" : "Jack", (can be disabled) "last_name" : "London" }, "pages" : 128, "tag" : ["fiction", "children"] } }}]}}
next, we have cds { "cd" : { "asin" : "B00192IV0O", "name" : "THE E.N.D. (Energy Never Dies)", "artist" : "Black Eyed Peas", "label" : "Interscope", "release_date": "2009-06-09", "tag" : ["hip-hop", "pop-rap"] } }
lets index it as well $ curl -XPUT host:9200/amazon/cd/B00192IV0O -d ‘ { "cd" : { "asin" : "B00192IV0O", "name" : "THE E.N.D. (Energy Never Dies)", "artist" : "Black Eyed Peas", "label" : "Interscope", "release_date": "2009-06-09", "tag" : ["hip-hop", "pop-rap"] } } ‘
... same _index, `amazon` $ curl -XPUT host:9200/amazon/cd/B00192IV0O -d ‘ { "cd" : { "asin" : "B00192IV0O", "name" : "THE E.N.D. (Energy Never Dies)", "artist" : "Black Eyed Peas", "label" : "Interscope", "release_date": "2009-06-09", "tag" : ["hip-hop", "pop-rap"] } } ‘
... new _type, `cd` $ curl -XPUT host:9200/amazon/cd/B00192IV0O -d ‘ { "cd" : { "asin" : "B00192IV0O", "name" : "THE E.N.D. (Energy Never Dies)", "artist" : "Black Eyed Peas", "label" : "Interscope", "release_date": "2009-06-09", "tag" : ["hip-hop", "pop-rap"] } } ‘
search for all hip-hop cds $ curl -XGET host:9200/amazon/cd/_search?q=tag:hip-hop‘
search across _type(s)
search across _type(s) search on both `cd` and `book` using `name` $ curl -XGET ‘host:9200/amazon/cd,book/_search?q=name:call’
search across _type(s) search on both `cd` and `book` using `name` $ curl -XGET ‘host:9200/amazon/cd,book/_search?q=name:call’ search on `_all` types using `name` $ curl -XGET ‘host:9200/amazon/_search?q=name:call’
search across _type(s) search on both `cd` and `book` using `name` $ curl -XGET ‘host:9200/amazon/cd,book/_search?q=name:call’ search on `_all` types using `name` $ curl -XGET ‘host:9200/amazon/_search?q=name:call’ search on specific fields types $ curl -XGET ‘host:9200/amazon/_search?q=book.author.first_name:jack OR cd.artist:jack‘
book and cd can be indices as well $ curl -XPUT host:9200/book/info/0812504321 -d ‘ { "isbn" : "0812504321", "name" : "Call of the Wild", "author" : { "first_name" : "Jack", "last_name" : "London" }, "pages" : 128, "tag" : ["fiction", "children"] } ‘
... `book` is now the _index $ curl -XPUT host:9200/book/info/0812504321 -d ‘ { "isbn" : "0812504321", "name" : "Call of the Wild", "author" : { "first_name" : "Jack", "last_name" : "London" }, "pages" : 128, "tag" : ["fiction", "children"] } ‘
... `info` is the _type $ curl -XPUT host:9200/book/info/0812504321 -d ‘ { "isbn" : "0812504321", "name" : "Call of the Wild", "author" : { "first_name" : "Jack", "last_name" : "London" }, "pages" : 128, "tag" : ["fiction", "children"] } ‘
cd is an index as well $ curl -XPUT host:9200/cd/info/B00192IV0O -d ‘ { "asin" : "B00192IV0O", "name" : "THE E.N.D. (Energy Never Dies)", "artist" : "Black Eyed Peas", "label" : "Interscope", "release_date": "2009-06-09", "tag" : ["hip-hop", "pop-rap"] } ‘
search across _index(es)
search across _index(es) search on both `cd` and `book` using `name` $ curl -XGET ‘host:9200/cd,book/info/_search?q=name:call’
search across _index(es) search on both `cd` and `book` using `name` $ curl -XGET ‘host:9200/cd,book/info/_search?q=name:call’ search on `_all` indices using `name` $ curl -XGET ‘host:9200/_search?q=name:call’
query_dsl
query_dsl done with the your_data part
query_dsl done with the your_data part => now to the your_search part
... term_query { “term” : { “name” : “call” } }
... term_query, also with type { “term” : { “name” : “call” } } { “term” : { “book.name” : “call” } }
... range_query { “range” : { “pages” : { “from” : 200, “to” : 300 } } }
... range_query, also with type { “range” : { “pages” : { “from” : 200, “to” : 300 } } } { “range” : { “book.pages” : { “from” : 200, “to” : 300 } } }
... many more queries { “prefix” : { “book.name” : “ca” } }
... many more queries { “prefix” : { “book.name” : “ca” } } { “wildcard” : { “book.name” : “c*ll” } }
... many more queries { “prefix” : { { “book.name” : “ca” “field” : { } “book.name” : “+call +wild” } } { } “wildcard” : { “book.name” : “c*ll” } }
... many more queries { “prefix” : { { “book.name” : “ca” “field” : { } “book.name” : “+call +wild” } } { } “wildcard” : { “book.name” : “c*ll” } } { “query_string” : { “query” : “+call +wild” } }
... and, of course, bool_query { “bool” : { “must” : [ { “field” : { “book.name” : “+call +wild” } }, { “range” : { “book.pages” : { “gte” : 200 } } } ], “must_not” : [ { “term” : { “book.author.first_name” : “jack” } } ], “should” : [ { “term” : { “book.author.last_name” : “london” } } ] } }
filters faster than queries
filters faster than queries no scoring
filters faster than queries no scoring cached for even faster access
... sample filters (wrapped as constant_score query) { “constant_score” : { “filter” : { “term” : { “name” : “call” } } } }
... sample filters (wrapped as constant_score query) { “constant_score” : { “filter” : { “term” : { { “name” : “call” “constant_score” : { } “filter” : { } “range” : { } “book.pages” : { } “from” : 100, “to” : 200 } } } } }
... easily combined with queries { “filtered” : { “query” : { “query_string” : { “query” : “+call +wild” } } “filter” : { “range” : { “book.pages” : { “from” : 100, “to” : 200 } } } } }
... easily combined with queries { “filtered” : { “query” : { “query_string” : { “query” : “+call +wild” } } “filter” : { “range” : { “book.pages” : { “from” : 100, “to” : 200 } } } } }
... easily combined with queries { “filtered” : { “query” : { “query_string” : { “query” : “+call +wild” } } “filter” : { “range” : { “book.pages” : { “from” : 100, “to” : 200 } } } } }
... easily combined with queries { “filtered” : { “query” : { “query_string” : { “query” : “+call +wild” } } “filter” : { “range” : { “book.pages” : { “from” : 100, “to” : 200 } } } } }
used in a search request $ curl -XPOST ‘host:9200/amazon/cd/_search‘ -d ‘ { “query” : { “field” : { “name” : “+call + wild” } } } ‘
other search features
other search features highlighting
other search features highlighting facets
other search features highlighting retrieve specific fields facets
other search features highlighting retrieve specific fields facets _all field
other search features highlighting retrieve specific fields facets _all field scrolling
distributed
automatic shard allocation
... start 1st node node 1
... create an index with 2 shards, 1 replica node 1 PUT /amazon { “index.number_of_shards” : 2, “index.number_of_replicas” : 1 }
... create an index with 2 shards, 1 replica node 1 1 PUT /amazon { “index.number_of_shards” : 2, “index.number_of_replicas” : 1 }
... create an index with 2 shards, 1 replica node 1 1 2 PUT /amazon { “index.number_of_shards” : 2, “index.number_of_replicas” : 1 }
... start 2nd node node 1 node 2 1 1 2 2
... start 3rd and 4th node 1 node 2 node 3 node 4 1 1 2 2
... index a document node 1 node 2 node 3 node 4 1 1 2 2 PUT /amazon/book/1 { ... }
... index a document => hashed to 1st shard node 1 node 2 node 3 node 4 1 1 2 2 PUT /amazon/book/1 { ... }
... index a document => replicated node 1 node 2 node 3 node 4 1 1 2 2 PUT /amazon/book/1 { ... }
... index another document node 1 node 2 node 3 node 4 1 1 2 2 PUT /amazon/book/2 { ... }
... index another document => hashed to 2nd shard node 1 node 2 node 3 node 4 1 1 2 2 PUT /amazon/book/2 { ... }
... index another document => replicated node 1 node 2 node 3 node 4 1 1 2 2 PUT /amazon/book/2 { ... }
search node 1 node 2 node 3 node 4 1 1 2 2 GET /amazon/_search?q=name:call
search => scatter node 1 node 2 node 3 node 4 1 1 2 2 GET /amazon/_search?q=name:call
search => gather node 1 node 2 node 3 node 4 1 1 2 2 GET /amazon/_search?q=name:call
create another index node 1 node 2 node 3 node 4 1 1 2 2 PUT /amazon2 { “index.number_of_shards” : 1, “index.number_of_replicas” : 1 }
create another index node 1 node 2 node 3 node 4 1 1 1 1 2 2 PUT /amazon2 { “index.number_of_shards” : 1, “index.number_of_replicas” : 1 }
create another index node 1 node 2 node 3 node 4 1 1 1 1 2 2 almost all settings are index based
per document consistency
per document consistency - you index it, its there
per document consistency - you index it, its there - no need to commit / flush
per document consistency - you index it, its there - no need to commit / flush - uses a transaction log
(near) real_time search
(near) real_time search - automatic, 1 second refresh rate
(near) real_time search - automatic, 1 second refresh rate - there’s an api for that
(near) real_time search - automatic, 1 second refresh rate - there’s an api for that - POST /_refresh
long_term persistency
long_term persistency - similar to apple time_machine
long_term persistency - similar to apple time_machine - or data_grid write_behind
long_term persistency - similar to apple time_machine - or data_grid write_behind - write changes to index / translog
long_term persistency - similar to apple time_machine - or data_grid write_behind - write changes to index / translog - to a shared persistent storage
long_term persistency - similar to apple time_machine - or data_grid write_behind - write changes to index / translog - to a shared persistent storage - asynchronously (reliable)
long_term persistency - similar to apple time_machine - or data_grid write_behind - write changes to index / translog - to a shared persistent storage - asynchronously (reliable) - low requirements from storage
long_term persistency - similar to apple time_machine - or data_grid write_behind - write changes to index / translog - to a shared persistent storage - asynchronously (reliable) - low requirements from storage - cluster meta_data persisted
long_term persistency ... storage options
long_term persistency ... storage options - shared file system
long_term persistency ... storage options - shared file system - no need for locking, etc ...
long_term persistency ... storage options - shared file system - no need for locking, etc ... - hadoop, using HDFS
long_term persistency ... storage options - shared file system - no need for locking, etc ... - hadoop, using HDFS - cloud (aws_s3, rackspace_cloud_files)
long_term persistency ... node storage
long_term persistency ... node storage - considered transient
long_term persistency ... node storage - considered transient - can be recovered from gateway
long_term persistency ... node storage - considered transient - can be recovered from gateway - can be stored on
long_term persistency ... node storage - considered transient - can be recovered from gateway - can be stored on - local file system
long_term persistency ... node storage - considered transient - can be recovered from gateway - can be stored on - local file system - heap (jvm) memory
long_term persistency ... node storage - considered transient - can be recovered from gateway - can be stored on - local file system - heap (jvm) memory - native (os) memory
long_term persistency ... node storage - considered transient - can be recovered from gateway - can be stored on - local file system - heap (jvm) memory - native (os) memory - fs & memory combination
native cloud support
native cloud support in the cloud
native cloud support in the cloud machine removed / added more dynamically
native cloud support in the cloud machine removed / added more dynamically machine fail more “dynamically”
native cloud support in the cloud machine removed / added more dynamically machine fail more “dynamically” local storage is wiped
native cloud support ... storage
native cloud support ... storage - local storage is wiped
native cloud support ... storage - local storage is wiped - use external storage (aws ebs)
native cloud support ... storage - local storage is wiped - use external storage (aws ebs) - needs to be per machine / shard
native cloud support ... storage - local storage is wiped - use external storage (aws ebs) - needs to be per machine / shard - can get wiped as well ...
native cloud support ... storage - local storage is wiped - use external storage (aws ebs) - needs to be per machine / shard - can get wiped as well ... - mmm..., ok, snapshot to aws s3
native cloud support ... storage - local storage is wiped - use external storage (aws ebs) - needs to be per machine / shard - can get wiped as well ... - mmm..., ok, snapshot to aws s3 - expensive => ebs & s3
native cloud support ... storage - local storage is wiped - use external storage (aws ebs) - needs to be per machine / shard - can get wiped as well ... - mmm..., ok, snapshot to aws s3 - expensive => ebs & s3 - snapshot interval problematic
native cloud support ... storage - local storage is wiped - use external storage (aws ebs) - needs to be per machine / shard - can get wiped as well ... - mmm..., ok, snapshot to aws s3 - expensive => ebs & s3 - snapshot interval problematic
native cloud support ... the elastic way
native cloud support ... the elastic way - use long term persistency
native cloud support ... the elastic way - use long term persistency - directly into cloud blob storage
native cloud support ... the elastic way - use long term persistency - directly into cloud blob storage - aws s3, rackspace cloud_files
native cloud support ... the elastic way - use long term persistency - directly into cloud blob storage - aws s3, rackspace cloud_files
native cloud support ... the elastic way - use long term persistency - directly into cloud blob storage - aws s3, rackspace cloud_files - reliable & asynchronous
native cloud support ... discovery
native cloud support ... discovery - no multicast
native cloud support ... discovery - no multicast - resort to unicast discovery
native cloud support ... discovery - no multicast - resort to unicast discovery - who’s my special nodes ...
native cloud support ... discovery - no multicast - resort to unicast discovery - who’s my special nodes ... - require persistent ip’s
native cloud support ... discovery - no multicast - resort to unicast discovery - who’s my special nodes ... - require persistent ip’s - complicate operations
native cloud support ... the elastic way
native cloud support ... the elastic way - discovery support multicast & unicast
native cloud support ... the elastic way - discovery support multicast & unicast - but also support cloud discovery
native cloud support ... the elastic way - discovery support multicast & unicast - but also support cloud discovery - use cloud_provider API
native cloud support ... the elastic way - discovery support multicast & unicast - but also support cloud discovery - use cloud_provider API - ... to get the current list of nodes
ping end_session
ping end_session icmq_seq=0 desc=brief overview of elasticsearch
ping end_session icmq_seq=0 desc=brief overview of elasticsearch icmq_seq=1 version=current version is 0.8
ping end_session icmq_seq=0 desc=brief overview of elasticsearch icmq_seq=1 version=current version is 0.8 icmq_seq=2 notice=is beta
ping end_session icmq_seq=0 desc=brief overview of elasticsearch icmq_seq=1 version=current version is 0.8 icmq_seq=2 notice=is beta so expect bugs ...
ping end_session icmq_seq=0 desc=brief overview of elasticsearch icmq_seq=1 version=current version is 0.8 icmq_seq=2 notice=is beta so expect bugs ... they are actively fixed
ping end_session icmq_seq=0 desc=brief overview of elasticsearch icmq_seq=1 version=current version is 0.8 icmq_seq=2 notice=is beta so expect bugs ... they are actively fixed as new features are being added
ping end_session icmq_seq=0 desc=brief overview of elasticsearch icmq_seq=1 version=current version is 0.8 icmq_seq=2 notice=is beta so expect bugs ... they are actively fixed as new features are being added icmq_seq=3 join=mailing list, suggestions, code
ping end_session icmq_seq=0 desc=brief overview of elasticsearch icmq_seq=1 version=current version is 0.8 icmq_seq=2 notice=is beta so expect bugs ... they are actively fixed as new features are being added icmq_seq=3 join=mailing list, suggestions, code icmq_seq=4 thanks!
ping audience
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ElasticSearch at berlinbuzzwords 2010

  • 1. You Know, For Search
  • 3. lightning talk kick ass
  • 4. lightning talk kick ass ~joke
  • 6. ping 127.0.0.1 icmq_seq=0 name=shay.banon
  • 7. ping 127.0.0.1 icmq_seq=0 name=shay.banon icmq_seq=1 a.k.a=kimchy
  • 8. ping 127.0.0.1 icmq_seq=0 name=shay.banon icmq_seq=1 a.k.a=kimchy icmq_seq=2 blog=http://kimchy.org
  • 9. ping 127.0.0.1 icmq_seq=0 name=shay.banon icmq_seq=1 a.k.a=kimchy icmq_seq=2 blog=http://kimchy.org icmq_seq=3 twitter=kimchy
  • 11. ping elasticsearch icmq_seq=0 tag=open_source (apache)
  • 12. ping elasticsearch icmq_seq=0 tag=open_source (apache) icmq_seq=1 tag=distributed
  • 13. ping elasticsearch icmq_seq=0 tag=open_source (apache) icmq_seq=1 tag=distributed icmq_seq=2 tag=RESTful
  • 14. ping elasticsearch icmq_seq=0 tag=open_source (apache) icmq_seq=1 tag=distributed icmq_seq=2 tag=RESTful icmq_seq=3 tag=(no_sql) search_engine
  • 15. ping elasticsearch icmq_seq=0 tag=open_source (apache) icmq_seq=1 tag=distributed icmq_seq=2 tag=RESTful icmq_seq=3 tag=(no_sql) search_engine icmq_seq=4 site=http://www.elasticsearch.com
  • 17. open_source apache_2
  • 18. open_source apache_2 http://github.com/elasticsearch/elasticsearch
  • 19. open_source apache_2 http://github.com/elasticsearch/elasticsearch fork, push, send_pull
  • 21. your_data => your_search
  • 22. your_data => your_search a product should natively talk the domain model
  • 23. your_data => your_search a product should natively talk the domain model and not the other way around
  • 24. recipes for good domain model language
  • 25. recipes for good domain model language - document_oriented
  • 26. recipes for good domain model language - document_oriented - schema free
  • 27. recipes for good domain model language - document_oriented - schema free - include json
  • 28. recipes for good domain model language - document_oriented - schema free - include json de_facto open_web standard
  • 29. lets build ourself an amazon store
  • 30. lets build ourself an amazon store (we will get to the cloud laters)
  • 31. first thing we have are books
  • 32. this is how they look like { "book" : { "isbn" : "0812504321", "name" : "Call of the Wild", "author" : { "first_name" : "Jack", "last_name" : "London" }, "pages" : 128, "tag" : ["fiction", "children"] } }
  • 33. lets index it $ curl -XPUT host:9200/amazon/book/0812504321 -d ‘ { "book" : { "isbn" : "0812504321", "name" : "Call of the Wild", "author" : { "first_name" : "Jack", "last_name" : "London" }, "pages" : 128, "tag" : ["fiction", "children"] } } ‘
  • 34. ... `amazon` is the _index name $ curl -XPUT host:9200/amazon/book/0812504321 -d ‘ { "book" : { "isbn" : "0812504321", "name" : "Call of the Wild", "author" : { "first_name" : "Jack", "last_name" : "London" }, "pages" : 128, "tag" : ["fiction", "children"] } } ‘
  • 35. ... `book` is the _type $ curl -XPUT host:9200/amazon/book/0812504321 -d ‘ { "book" : { "isbn" : "0812504321", "name" : "Call of the Wild", "author" : { "first_name" : "Jack", "last_name" : "London" }, "pages" : 128, "tag" : ["fiction", "children"] } } ‘
  • 36. ... `0812504321` is the _id $ curl -XPUT host:9200/amazon/book/0812504321 -d ‘ { "book" : { "isbn" : "0812504321", "name" : "Call of the Wild", "author" : { "first_name" : "Jack", "last_name" : "London" }, "pages" : 128, "tag" : ["fiction", "children"] } } ‘
  • 37. search for all fiction books $ curl -XGET host:9200/amazon/book/_search?q=tag:fiction‘
  • 38. search for all fiction books $ curl -XGET host:9200/amazon/book/_search?q=tag:fiction‘ {"_shards":{"total":5,"successful":5,"failed":0},"hits":{"total":1,"hits": [{"_index":"amazon","_type":"book","_id":"0812504321", "_source" : { "book" : { "isbn" : "0812504321", "name" : "Call of the Wild", "author" : { "first_name" : "Jack", "last_name" : "London" }, "pages" : 128, "tag" : ["fiction", "children"] } }}]}}
  • 39. ... number of total hits $ curl -XGET host:9200/amazon/book/_search?q=tag:fiction‘ {"_shards":{"total":5,"successful":5,"failed":0},"hits":{"total":1,"hits": [{"_index":"amazon","_type":"book","_id":"0812504321", "_source" : { "book" : { "isbn" : "0812504321", "name" : "Call of the Wild", "author" : { "first_name" : "Jack", "last_name" : "London" }, "pages" : 128, "tag" : ["fiction", "children"] } }}]}}
  • 40. ... each hit has the `_index` it came from $ curl -XGET host:9200/amazon/book/_search?q=tag:fiction‘ {"_shards":{"total":5,"successful":5,"failed":0},"hits":{"total":1,"hits": [{"_index":"amazon","_type":"book","_id":"0812504321", "_source" : { "book" : { "isbn" : "0812504321", "name" : "Call of the Wild", "author" : { "first_name" : "Jack", "last_name" : "London" }, "pages" : 128, "tag" : ["fiction", "children"] } }}]}}
  • 41. ... each hit has the `_type` it belongs to $ curl -XGET host:9200/amazon/book/_search?q=tag:fiction‘ {"_shards":{"total":5,"successful":5,"failed":0},"hits":{"total":1,"hits": [{"_index":"amazon","_type":"book","_id":"0812504321", "_source" : { "book" : { "isbn" : "0812504321", "name" : "Call of the Wild", "author" : { "first_name" : "Jack", "last_name" : "London" }, "pages" : 128, "tag" : ["fiction", "children"] } }}]}}
  • 42. ... each hit has its `_id` $ curl -XGET host:9200/amazon/book/_search?q=tag:fiction‘ {"_shards":{"total":5,"successful":5,"failed":0},"hits":{"total":1,"hits": [{"_index":"amazon","_type":"book","_id":"0812504321", "_source" : { "book" : { "isbn" : "0812504321", "name" : "Call of the Wild", "author" : { "first_name" : "Jack", "last_name" : "London" }, "pages" : 128, "tag" : ["fiction", "children"] } }}]}}
  • 43. ... each hit has the actual _source document $ curl -XGET host:9200/amazon/book/_search?q=tag:fiction‘ {"_shards":{"total":5,"successful":5,"failed":0},"hits":{"total":1,"hits": [{"_index":"amazon","_type":"book","_id":"0812504321", "_source" : { "book" : { "isbn" : "0812504321", "name" : "Call of the Wild", "author" : { "first_name" : "Jack", "last_name" : "London" }, "pages" : 128, "tag" : ["fiction", "children"] } }}]}}
  • 44. ... each hit has the actual _source document $ curl -XGET host:9200/amazon/book/_search?q=tag:fiction‘ {"_shards":{"total":5,"successful":5,"failed":0},"hits":{"total":1,"hits": [{"_index":"amazon","_type":"book","_id":"0812504321", "_source" : { "book" : { "isbn" : "0812504321", "name" : "Call of the Wild", "author" : { "first_name" : "Jack", (can be disabled) "last_name" : "London" }, "pages" : 128, "tag" : ["fiction", "children"] } }}]}}
  • 45. next, we have cds { "cd" : { "asin" : "B00192IV0O", "name" : "THE E.N.D. (Energy Never Dies)", "artist" : "Black Eyed Peas", "label" : "Interscope", "release_date": "2009-06-09", "tag" : ["hip-hop", "pop-rap"] } }
  • 46. lets index it as well $ curl -XPUT host:9200/amazon/cd/B00192IV0O -d ‘ { "cd" : { "asin" : "B00192IV0O", "name" : "THE E.N.D. (Energy Never Dies)", "artist" : "Black Eyed Peas", "label" : "Interscope", "release_date": "2009-06-09", "tag" : ["hip-hop", "pop-rap"] } } ‘
  • 47. ... same _index, `amazon` $ curl -XPUT host:9200/amazon/cd/B00192IV0O -d ‘ { "cd" : { "asin" : "B00192IV0O", "name" : "THE E.N.D. (Energy Never Dies)", "artist" : "Black Eyed Peas", "label" : "Interscope", "release_date": "2009-06-09", "tag" : ["hip-hop", "pop-rap"] } } ‘
  • 48. ... new _type, `cd` $ curl -XPUT host:9200/amazon/cd/B00192IV0O -d ‘ { "cd" : { "asin" : "B00192IV0O", "name" : "THE E.N.D. (Energy Never Dies)", "artist" : "Black Eyed Peas", "label" : "Interscope", "release_date": "2009-06-09", "tag" : ["hip-hop", "pop-rap"] } } ‘
  • 49. search for all hip-hop cds $ curl -XGET host:9200/amazon/cd/_search?q=tag:hip-hop‘
  • 51. search across _type(s) search on both `cd` and `book` using `name` $ curl -XGET ‘host:9200/amazon/cd,book/_search?q=name:call’
  • 52. search across _type(s) search on both `cd` and `book` using `name` $ curl -XGET ‘host:9200/amazon/cd,book/_search?q=name:call’ search on `_all` types using `name` $ curl -XGET ‘host:9200/amazon/_search?q=name:call’
  • 53. search across _type(s) search on both `cd` and `book` using `name` $ curl -XGET ‘host:9200/amazon/cd,book/_search?q=name:call’ search on `_all` types using `name` $ curl -XGET ‘host:9200/amazon/_search?q=name:call’ search on specific fields types $ curl -XGET ‘host:9200/amazon/_search?q=book.author.first_name:jack OR cd.artist:jack‘
  • 54. book and cd can be indices as well $ curl -XPUT host:9200/book/info/0812504321 -d ‘ { "isbn" : "0812504321", "name" : "Call of the Wild", "author" : { "first_name" : "Jack", "last_name" : "London" }, "pages" : 128, "tag" : ["fiction", "children"] } ‘
  • 55. ... `book` is now the _index $ curl -XPUT host:9200/book/info/0812504321 -d ‘ { "isbn" : "0812504321", "name" : "Call of the Wild", "author" : { "first_name" : "Jack", "last_name" : "London" }, "pages" : 128, "tag" : ["fiction", "children"] } ‘
  • 56. ... `info` is the _type $ curl -XPUT host:9200/book/info/0812504321 -d ‘ { "isbn" : "0812504321", "name" : "Call of the Wild", "author" : { "first_name" : "Jack", "last_name" : "London" }, "pages" : 128, "tag" : ["fiction", "children"] } ‘
  • 57. cd is an index as well $ curl -XPUT host:9200/cd/info/B00192IV0O -d ‘ { "asin" : "B00192IV0O", "name" : "THE E.N.D. (Energy Never Dies)", "artist" : "Black Eyed Peas", "label" : "Interscope", "release_date": "2009-06-09", "tag" : ["hip-hop", "pop-rap"] } ‘
  • 59. search across _index(es) search on both `cd` and `book` using `name` $ curl -XGET ‘host:9200/cd,book/info/_search?q=name:call’
  • 60. search across _index(es) search on both `cd` and `book` using `name` $ curl -XGET ‘host:9200/cd,book/info/_search?q=name:call’ search on `_all` indices using `name` $ curl -XGET ‘host:9200/_search?q=name:call’
  • 62. query_dsl done with the your_data part
  • 63. query_dsl done with the your_data part => now to the your_search part
  • 64. ... term_query { “term” : { “name” : “call” } }
  • 65. ... term_query, also with type { “term” : { “name” : “call” } } { “term” : { “book.name” : “call” } }
  • 66. ... range_query { “range” : { “pages” : { “from” : 200, “to” : 300 } } }
  • 67. ... range_query, also with type { “range” : { “pages” : { “from” : 200, “to” : 300 } } } { “range” : { “book.pages” : { “from” : 200, “to” : 300 } } }
  • 68. ... many more queries { “prefix” : { “book.name” : “ca” } }
  • 69. ... many more queries { “prefix” : { “book.name” : “ca” } } { “wildcard” : { “book.name” : “c*ll” } }
  • 70. ... many more queries { “prefix” : { { “book.name” : “ca” “field” : { } “book.name” : “+call +wild” } } { } “wildcard” : { “book.name” : “c*ll” } }
  • 71. ... many more queries { “prefix” : { { “book.name” : “ca” “field” : { } “book.name” : “+call +wild” } } { } “wildcard” : { “book.name” : “c*ll” } } { “query_string” : { “query” : “+call +wild” } }
  • 72. ... and, of course, bool_query { “bool” : { “must” : [ { “field” : { “book.name” : “+call +wild” } }, { “range” : { “book.pages” : { “gte” : 200 } } } ], “must_not” : [ { “term” : { “book.author.first_name” : “jack” } } ], “should” : [ { “term” : { “book.author.last_name” : “london” } } ] } }
  • 75. filters faster than queries no scoring cached for even faster access
  • 76. ... sample filters (wrapped as constant_score query) { “constant_score” : { “filter” : { “term” : { “name” : “call” } } } }
  • 77. ... sample filters (wrapped as constant_score query) { “constant_score” : { “filter” : { “term” : { { “name” : “call” “constant_score” : { } “filter” : { } “range” : { } “book.pages” : { } “from” : 100, “to” : 200 } } } } }
  • 78. ... easily combined with queries { “filtered” : { “query” : { “query_string” : { “query” : “+call +wild” } } “filter” : { “range” : { “book.pages” : { “from” : 100, “to” : 200 } } } } }
  • 79. ... easily combined with queries { “filtered” : { “query” : { “query_string” : { “query” : “+call +wild” } } “filter” : { “range” : { “book.pages” : { “from” : 100, “to” : 200 } } } } }
  • 80. ... easily combined with queries { “filtered” : { “query” : { “query_string” : { “query” : “+call +wild” } } “filter” : { “range” : { “book.pages” : { “from” : 100, “to” : 200 } } } } }
  • 81. ... easily combined with queries { “filtered” : { “query” : { “query_string” : { “query” : “+call +wild” } } “filter” : { “range” : { “book.pages” : { “from” : 100, “to” : 200 } } } } }
  • 82. used in a search request $ curl -XPOST ‘host:9200/amazon/cd/_search‘ -d ‘ { “query” : { “field” : { “name” : “+call + wild” } } } ‘
  • 86. other search features highlighting retrieve specific fields facets
  • 87. other search features highlighting retrieve specific fields facets _all field
  • 88. other search features highlighting retrieve specific fields facets _all field scrolling
  • 91. ... start 1st node node 1
  • 92. ... create an index with 2 shards, 1 replica node 1 PUT /amazon { “index.number_of_shards” : 2, “index.number_of_replicas” : 1 }
  • 93. ... create an index with 2 shards, 1 replica node 1 1 PUT /amazon { “index.number_of_shards” : 2, “index.number_of_replicas” : 1 }
  • 94. ... create an index with 2 shards, 1 replica node 1 1 2 PUT /amazon { “index.number_of_shards” : 2, “index.number_of_replicas” : 1 }
  • 95. ... start 2nd node node 1 node 2 1 1 2 2
  • 96. ... start 3rd and 4th node 1 node 2 node 3 node 4 1 1 2 2
  • 97. ... index a document node 1 node 2 node 3 node 4 1 1 2 2 PUT /amazon/book/1 { ... }
  • 98. ... index a document => hashed to 1st shard node 1 node 2 node 3 node 4 1 1 2 2 PUT /amazon/book/1 { ... }
  • 99. ... index a document => replicated node 1 node 2 node 3 node 4 1 1 2 2 PUT /amazon/book/1 { ... }
  • 100. ... index another document node 1 node 2 node 3 node 4 1 1 2 2 PUT /amazon/book/2 { ... }
  • 101. ... index another document => hashed to 2nd shard node 1 node 2 node 3 node 4 1 1 2 2 PUT /amazon/book/2 { ... }
  • 102. ... index another document => replicated node 1 node 2 node 3 node 4 1 1 2 2 PUT /amazon/book/2 { ... }
  • 103. search node 1 node 2 node 3 node 4 1 1 2 2 GET /amazon/_search?q=name:call
  • 104. search => scatter node 1 node 2 node 3 node 4 1 1 2 2 GET /amazon/_search?q=name:call
  • 105. search => gather node 1 node 2 node 3 node 4 1 1 2 2 GET /amazon/_search?q=name:call
  • 106. create another index node 1 node 2 node 3 node 4 1 1 2 2 PUT /amazon2 { “index.number_of_shards” : 1, “index.number_of_replicas” : 1 }
  • 107. create another index node 1 node 2 node 3 node 4 1 1 1 1 2 2 PUT /amazon2 { “index.number_of_shards” : 1, “index.number_of_replicas” : 1 }
  • 108. create another index node 1 node 2 node 3 node 4 1 1 1 1 2 2 almost all settings are index based
  • 110. per document consistency - you index it, its there
  • 111. per document consistency - you index it, its there - no need to commit / flush
  • 112. per document consistency - you index it, its there - no need to commit / flush - uses a transaction log
  • 114. (near) real_time search - automatic, 1 second refresh rate
  • 115. (near) real_time search - automatic, 1 second refresh rate - there’s an api for that
  • 116. (near) real_time search - automatic, 1 second refresh rate - there’s an api for that - POST /_refresh
  • 118. long_term persistency - similar to apple time_machine
  • 119. long_term persistency - similar to apple time_machine - or data_grid write_behind
  • 120. long_term persistency - similar to apple time_machine - or data_grid write_behind - write changes to index / translog
  • 121. long_term persistency - similar to apple time_machine - or data_grid write_behind - write changes to index / translog - to a shared persistent storage
  • 122. long_term persistency - similar to apple time_machine - or data_grid write_behind - write changes to index / translog - to a shared persistent storage - asynchronously (reliable)
  • 123. long_term persistency - similar to apple time_machine - or data_grid write_behind - write changes to index / translog - to a shared persistent storage - asynchronously (reliable) - low requirements from storage
  • 124. long_term persistency - similar to apple time_machine - or data_grid write_behind - write changes to index / translog - to a shared persistent storage - asynchronously (reliable) - low requirements from storage - cluster meta_data persisted
  • 125. long_term persistency ... storage options
  • 126. long_term persistency ... storage options - shared file system
  • 127. long_term persistency ... storage options - shared file system - no need for locking, etc ...
  • 128. long_term persistency ... storage options - shared file system - no need for locking, etc ... - hadoop, using HDFS
  • 129. long_term persistency ... storage options - shared file system - no need for locking, etc ... - hadoop, using HDFS - cloud (aws_s3, rackspace_cloud_files)
  • 130. long_term persistency ... node storage
  • 131. long_term persistency ... node storage - considered transient
  • 132. long_term persistency ... node storage - considered transient - can be recovered from gateway
  • 133. long_term persistency ... node storage - considered transient - can be recovered from gateway - can be stored on
  • 134. long_term persistency ... node storage - considered transient - can be recovered from gateway - can be stored on - local file system
  • 135. long_term persistency ... node storage - considered transient - can be recovered from gateway - can be stored on - local file system - heap (jvm) memory
  • 136. long_term persistency ... node storage - considered transient - can be recovered from gateway - can be stored on - local file system - heap (jvm) memory - native (os) memory
  • 137. long_term persistency ... node storage - considered transient - can be recovered from gateway - can be stored on - local file system - heap (jvm) memory - native (os) memory - fs & memory combination
  • 140. native cloud support in the cloud machine removed / added more dynamically
  • 141. native cloud support in the cloud machine removed / added more dynamically machine fail more “dynamically”
  • 142. native cloud support in the cloud machine removed / added more dynamically machine fail more “dynamically” local storage is wiped
  • 143. native cloud support ... storage
  • 144. native cloud support ... storage - local storage is wiped
  • 145. native cloud support ... storage - local storage is wiped - use external storage (aws ebs)
  • 146. native cloud support ... storage - local storage is wiped - use external storage (aws ebs) - needs to be per machine / shard
  • 147. native cloud support ... storage - local storage is wiped - use external storage (aws ebs) - needs to be per machine / shard - can get wiped as well ...
  • 148. native cloud support ... storage - local storage is wiped - use external storage (aws ebs) - needs to be per machine / shard - can get wiped as well ... - mmm..., ok, snapshot to aws s3
  • 149. native cloud support ... storage - local storage is wiped - use external storage (aws ebs) - needs to be per machine / shard - can get wiped as well ... - mmm..., ok, snapshot to aws s3 - expensive => ebs & s3
  • 150. native cloud support ... storage - local storage is wiped - use external storage (aws ebs) - needs to be per machine / shard - can get wiped as well ... - mmm..., ok, snapshot to aws s3 - expensive => ebs & s3 - snapshot interval problematic
  • 151. native cloud support ... storage - local storage is wiped - use external storage (aws ebs) - needs to be per machine / shard - can get wiped as well ... - mmm..., ok, snapshot to aws s3 - expensive => ebs & s3 - snapshot interval problematic
  • 152. native cloud support ... the elastic way
  • 153. native cloud support ... the elastic way - use long term persistency
  • 154. native cloud support ... the elastic way - use long term persistency - directly into cloud blob storage
  • 155. native cloud support ... the elastic way - use long term persistency - directly into cloud blob storage - aws s3, rackspace cloud_files
  • 156. native cloud support ... the elastic way - use long term persistency - directly into cloud blob storage - aws s3, rackspace cloud_files
  • 157. native cloud support ... the elastic way - use long term persistency - directly into cloud blob storage - aws s3, rackspace cloud_files - reliable & asynchronous
  • 158. native cloud support ... discovery
  • 159. native cloud support ... discovery - no multicast
  • 160. native cloud support ... discovery - no multicast - resort to unicast discovery
  • 161. native cloud support ... discovery - no multicast - resort to unicast discovery - who’s my special nodes ...
  • 162. native cloud support ... discovery - no multicast - resort to unicast discovery - who’s my special nodes ... - require persistent ip’s
  • 163. native cloud support ... discovery - no multicast - resort to unicast discovery - who’s my special nodes ... - require persistent ip’s - complicate operations
  • 164. native cloud support ... the elastic way
  • 165. native cloud support ... the elastic way - discovery support multicast & unicast
  • 166. native cloud support ... the elastic way - discovery support multicast & unicast - but also support cloud discovery
  • 167. native cloud support ... the elastic way - discovery support multicast & unicast - but also support cloud discovery - use cloud_provider API
  • 168. native cloud support ... the elastic way - discovery support multicast & unicast - but also support cloud discovery - use cloud_provider API - ... to get the current list of nodes
  • 170. ping end_session icmq_seq=0 desc=brief overview of elasticsearch
  • 171. ping end_session icmq_seq=0 desc=brief overview of elasticsearch icmq_seq=1 version=current version is 0.8
  • 172. ping end_session icmq_seq=0 desc=brief overview of elasticsearch icmq_seq=1 version=current version is 0.8 icmq_seq=2 notice=is beta
  • 173. ping end_session icmq_seq=0 desc=brief overview of elasticsearch icmq_seq=1 version=current version is 0.8 icmq_seq=2 notice=is beta so expect bugs ...
  • 174. ping end_session icmq_seq=0 desc=brief overview of elasticsearch icmq_seq=1 version=current version is 0.8 icmq_seq=2 notice=is beta so expect bugs ... they are actively fixed
  • 175. ping end_session icmq_seq=0 desc=brief overview of elasticsearch icmq_seq=1 version=current version is 0.8 icmq_seq=2 notice=is beta so expect bugs ... they are actively fixed as new features are being added
  • 176. ping end_session icmq_seq=0 desc=brief overview of elasticsearch icmq_seq=1 version=current version is 0.8 icmq_seq=2 notice=is beta so expect bugs ... they are actively fixed as new features are being added icmq_seq=3 join=mailing list, suggestions, code
  • 177. ping end_session icmq_seq=0 desc=brief overview of elasticsearch icmq_seq=1 version=current version is 0.8 icmq_seq=2 notice=is beta so expect bugs ... they are actively fixed as new features are being added icmq_seq=3 join=mailing list, suggestions, code icmq_seq=4 thanks!