berlinbuzzwords presentation of elasticsearch

1. You Know, For Search

2. lightning talk

3. lightning talk
kick ass

4. lightning talk
kick ass
~joke

5. ping 127.0.0.1

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

10. ping elasticsearch

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

16. open_source

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

20. your_data

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‘

50. search across _type(s)

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"]
}
‘

58. search across _index(es)

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’

61. query_dsl

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” } }
]
}
}

73. filters
faster than queries

74. filters
faster than queries
no scoring

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”
}
}
}
‘

83. other search features

84. other search features
highlighting

85. other search features
highlighting
facets

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

89. distributed

90. automatic shard allocation

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

109. per document consistency

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

113. (near) real_time search

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

117. long_term persistency

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

138. native cloud support

139. native cloud support
in the cloud

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

169. ping end_session

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!

178. ping audience