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Copyright Elasticsearch 2013. Copying, publishing and/or distributing without written permission is strictly prohibited
What’s New in
Percolator?
@lucacavanna
Elasticsearch User Group BeLux
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Agenda
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Agenda
What is the percolator?
What do people use it for?
How does it work?
Why did it need a redesign?
What was changed exactly?
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Agenda
What is the percolator?
What do people use it for?
How does it work?
Why did it need a redesign?
What was changed exactly?
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Agenda
What is the percolator?
What do people use it for?
How does it work?
Why did it need a redesign?
What was changed exactly?
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Copyright Elasticsearch 2013. Copying, publishing and/or distributing without written permission is strictly prohibited
Agenda
What is the percolator?
What do people use it for?
How does it work?
Why did it need a redesign?
What was changed exactly?
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Agenda
What is the percolator?
What do people use it for?
How does it work?
Why did it need a redesign?
What has changed?
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Perco ...what?
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We are used to docs...
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PUT /twitter/tweet/1 -d '
{
"tweet": "#elasticsearch is AWESOME",
"nick": "@lucacavanna",
"name": "Luca Cavanna",
"date": "2013-10-02",
"rt": 5,
"loc": {
! "lat": 13.4,
! "lon": 52.5
}
}
'
We are used to docs...
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...and queries
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...and queries
GET /_search -d '
{
"query": {
"match": { "tweet": "elasticsearch" }
}
}
'
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Let’s do the opposite
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Let’s index a query...
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PUT /_percolator/twitter/es-tweets
Let’s index a query...
verb (index request)
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PUT /_percolator/twitter/es-tweets
Let’s index a query...
reserved index
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PUT /_percolator/twitter/es-tweets
Let’s index a query...
index to register query against
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PUT /_percolator/twitter/es-tweets
Let’s index a query...
query identifier
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Let’s index a query...
PUT /_percolator/twitter/es-tweets -d '
{
"query": {
"match": { "tweet": "elasticsearch" }
}
}
'
the query
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GET /twitter/tweet/_percolate
...and percolate a doc
verb (percolate request)
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GET /twitter/tweet/_percolate
...and percolate a doc
index to percolate against
(needs to exist although empty)
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GET /twitter/tweet/_percolate
...and percolate a doc
percolate api endpoint
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GET /twitter/tweet/_percolate -d '
{
“doc”: {
"tweet": "#elasticsearch is AWESOME",
"nick": "@lucacavanna",
"name": "Luca Cavanna",
"date": "2013-10-02",
"rt": 5,
"loc": {
! "lat": 13.4,
! "lon": 52.5
}
}
}
'
...and percolate a doc
document
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{
"ok": "true",
"matches": ["es-tweets"]
}
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...and percolate a doc
# 200 OK
matching queries
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{
"ok": "true",
"matches": ["es-tweets"]
}
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...and percolate a doc
# 200 OK
PUT /_percolator/twitter/es-tweets -d '
{
"query": {
"match": { "tweet": "elasticsearch" }
}
}
'
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Why would you do that?
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Let me know when it’s coming!
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weather forecast alerts
PUT /_percolator/forecast/summer -d '
{
"query": {
“range”: {
“max” : {
“gte” : 30
}
}
}
}
'
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weather forecast alerts
GET /forecast/type/_percolate -d '
{
“doc” : {
"date": "2013-07-25",
"wind": 1,
"min": "22",
"max": "32",
"rain": 0
}
}
'
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{
"ok": "true",
"matches": ["summer"]
}
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# 200 OK
weather forecast alerts
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{
"ok": "true",
"matches": ["summer"]
}
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# 200 OK
the summer is coming!
weather forecast alerts
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Alerting applies also to:
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Alerting applies also to:
Price monitoring
News alerts
Stock alerts
Logs monitoring
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Copyright Elasticsearch 2013. Copying, publishing and/or distributing without written permission is strictly prohibited
Alerting applies also to:
Price monitoring
News alerts
Stock alerts
Logs monitoring
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Copyright Elasticsearch 2013. Copying, publishing and/or distributing without written permission is strictly prohibited
Alerting applies also to:
Price monitoring
News alerts
Stock alerts
Logs monitoring
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Copyright Elasticsearch 2013. Copying, publishing and/or distributing without written permission is strictly prohibited
Alerting applies also to:
Price monitoring
News alerts
Stock alerts
Logs monitoring
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Copyright Elasticsearch 2013. Copying, publishing and/or distributing without written permission is strictly prohibited
Alerting applies also to:
Price monitoring
News alerts
Stock alerts
Logs monitoring
...and many more
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How do I make my ads better?
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Store users queries
PUT /_percolator/ads/user1 -d '
{
"query": {
“match”: {
“text” : “iphone subscription”,
“operator” : “and”
}
}
}
'
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Let’s percolate the ad...
GET /ads/apple/_percolate -d '
{
“doc” : {
"text": "iPhone from 1 euro",
"url": “http://www.myads.com/myads”
}
}
'
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{
"ok": "true",
"matches": []
}
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# 200 OK
No query matches
...and get feedback back
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Let’s modify the ad...
GET /ads/apple/_percolate -d '
{
“doc” : {
"text": “iPhone subscription from 1 euro",
"url": “http://www.myads.com/myads”
}
}
'
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{
"ok": "true",
"matches": ["user1"]
}
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# 200 OK
How many people would
the updated ad reach?
...and get feedback back
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Enhance documents
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Store articles patterns
PUT /_percolator/article/apple -d '
{
"query": {
“multi_match”: {
“fields” : [“title”,”content”],
“query” : “ios apple iphone ipad”
}
}
}
'
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percolate a new article
GET /article/tech/_percolate -d '
{
“doc” : {
"title": "iOS 7 released",
"content": “iOS 7, the seventh major
iteration of the mobile platform, includes more
than 200 new features, including a brand new
bright and colorful user interface.”
}
}
'
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percolate a new article
{
"ok": "true",
"matches": ["apple"]
}
GET /article/tech/_percolate -d '
{
“doc” : {
"title": "iOS 7 released",
"content": “iOS 7, the seventh major
iteration of the mobile platform, includes more
than 200 new features, including a brand new
bright and colorful user interface.”
}
}
'
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index the enriched article
PUT /article/tech/1 -d '
{
"title": "iOS 7 released",
"content": “iOS 7, the seventh major iteration
of the mobile platform, includes more than 200
new features, including a brand new bright and
colorful user interface.”,
“tag” : “apple”
}
'
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How does it work?
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GET /_percolator/_mapping
special mapping
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GET /_percolator/_mapping
{
"_default_" : {
"properties" : {
"query" : {
"type" : "object",
"enabled" : false
}
}
}
}
special mapping
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GET /_percolator/_mapping
{
"_default_" : {
"properties" : {
"query" : {
"type" : "object",
"enabled" : false
}
}
}
}
special mapping
queries are only stored
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How does it work?
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How does it work?
All queries are loaded in memory
Each doc is indexed in memory
All queries get executed against it
Execution time linear (# of queries)
The memory index gets cleaned up
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How does it work?
All queries are loaded in memory
Each doc is indexed in memory
All queries get executed against it
Execution time linear (# of queries)
The memory index gets cleaned up
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How does it work?
All queries are loaded in memory
Each doc is indexed in memory
All queries get executed against it
Execution time linear (# of queries)
The memory index gets cleaned up
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How does it work?
All queries are loaded in memory
Each doc is indexed in memory
All queries get executed against it
Execution time linear to # of queries
The memory index gets cleaned up
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How does it work?
All queries are loaded in memory
Each doc is indexed in memory
All queries get executed against it
Execution time linear to # of queries
The memory index gets cleaned up
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Query metadata
PUT /_percolator/twitter/es-tweets -d '
{
"query": {
"match": { "tweet": "elasticsearch" }
}
}
'
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Query metadata
PUT /_percolator/twitter/es-tweets -d '
{
"query": {
"match": { "tweet": "elasticsearch" }
},
“user_id”: “lucacavanna”
}
'
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Query metadata
PUT /_percolator/twitter/es-tweets -d '
{
"query": {
"match": { "tweet": "elasticsearch" }
},
“user”: {
“name” : “Luca Cavanna”,
“nick” : “lucacavanna”
}
}
'
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Retrieve query by id
GET /_percolator/twitter/es-tweets
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GET /_percolator/twitter/es-tweets
{
"query": {
"match": { "tweet": "elasticsearch" }
},
“user”: {
“name” : “Luca Cavanna”,
“nick” : “lucacavanna”
}
}
Retrieve query by id
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GET /twitter/tweet/_percolate -d '
{
“doc” : {
"tweet": "#elasticsearch is AWESOME",
"nick": "@lucacavanna"
},
“query” : {
“term” : {“user.nick” : “lucacavanna”}
}
}
'
Drill down
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GET /twitter/tweet/_percolate -d '
{
“doc” : {
"tweet": "#elasticsearch is AWESOME",
"nick": "@lucacavanna"
},
“query” : {
“term” : {“user.nick” : “lucacavanna”}
}
}
'
Drill down
restricts the # of queries to run
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GET /_percolator/_settings
special settings
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GET /_percolator/_settings
{
"_percolator" : {
"settings" : {
"index.version.created" : "900599",
"index.number_of_replicas" : "0",
"index.number_of_shards" : "1",
"index.auto_expand_replicas" : "0-all"
}
}
}
special settings
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Node 1
_percolator
0P
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Node 1
_percolator
0P
Node 2
_percolator
0R
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Node 1
_percolator
0P
Node 2
_percolator
0R
Node 3
_percolator
0R
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Looks pretty cool,
doesn’t it?
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What’s wrong with it
then?
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A single shard doesn’t
scale!
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What has changed in
master (1.0)?
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Let’s index a query...
PUT /_percolator/twitter/es-tweets -d '
{
"query": {
"match": { "tweet": "elasticsearch" }
}
}
'
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Copyright Elasticsearch 2013. Copying, publishing and/or distributing without written permission is strictly prohibited
Let’s index a query...
PUT /anyindex/twitter/es-tweets -d '
{
"query": {
"match": { "tweet": "elasticsearch" }
}
}
'
any index can contain queries to
percolate against
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Let’s index a query...
PUT /anyindex/_percolator/es-tweets -d '
{
"query": {
"match": { "tweet": "elasticsearch" }
}
}
'
reserved type for queries to
percolate against
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How many shards now?
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As many as you like!
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This can actually scale!
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GET /index1,index2/tweet/_percolate -d '
{
“doc”: {
"tweet": "#elasticsearch is AWESOME",
"nick": "@lucacavanna",
"name": "Luca Cavanna",
"date": "2013-10-02",
"rt": 5,
"loc": {
! "lat": 13.4,
! "lon": 52.5
}
}
}
'
Multi-index support
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GET /alias1/tweet/_percolate -d '
{
“doc”: {
"tweet": "#elasticsearch is AWESOME",
"nick": "@lucacavanna",
"name": "Luca Cavanna",
"date": "2013-10-02",
"rt": 5,
"loc": {
! "lat": 13.4,
! "lon": 52.5
}
}
}
'
Full alias support
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Routing support
PUT /anyindex/_percolator/id?routing=user1 -d '
{
"query": {
"match": { "tweet": "elasticsearch" }
}
}
'
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Copyright Elasticsearch 2013. Copying, publishing and/or distributing without written permission is strictly prohibited
GET /twitter/tweet/_percolate?routing=user1 -d '
{
“doc”: {
"tweet": "#elasticsearch is AWESOME",
"nick": "@lucacavanna",
"name": "Luca Cavanna",
"date": "2013-10-02",
"rt": 5,
"loc": {
! "lat": 13.4,
! "lon": 52.5
}
}
}
Routing support
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{
"took": 9,
“_shards” : {
“total” : 5,
“successful” : 5,
“failed” : 0
},
“count” : 1,
"matches": [
{
“_index” : “index1”,
“_id” : “es-tweets”
}
]
}
Copyright Elasticsearch 2013. Copying, publishing and/or distributing without written permission is strictly prohibited
New percolate response
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{
"took": 9,
“_shards” : {
“total” : 5,
“successful” : 5,
“failed” : 0
},
“count” : 1,
"matches": [
{
“_index” : “index1”,
“_id” : “es-tweets”
}
]
}
Copyright Elasticsearch 2013. Copying, publishing and/or distributing without written permission is strictly prohibited
New percolate response
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{
"took": 9,
“_shards” : {
“total” : 5,
“successful” : 5,
“failed” : 0
},
“count” : 1,
"matches": [
{
“_index” : “index1”,
“_id” : “es-tweets”
}
]
}
Copyright Elasticsearch 2013. Copying, publishing and/or distributing without written permission is strictly prohibited
New percolate response
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{
"took": 9,
“_shards” : {
“total” : 5,
“successful” : 5,
“failed” : 0
},
“count” : 1,
"matches": [
{
“_index” : “index1”,
“_id” : “es-tweets”
}
]
}
Copyright Elasticsearch 2013. Copying, publishing and/or distributing without written permission is strictly prohibited
New percolate response
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Some brand new
features
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Copyright Elasticsearch 2013. Copying, publishing and/or distributing without written permission is strictly prohibited
GET /twitter/tweet/1/_percolate
Percolate existing doc
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Copyright Elasticsearch 2013. Copying, publishing and/or distributing without written permission is strictly prohibited
GET /twitter/tweet/1/_percolate
Percolate existing doc
1) index that contains the document
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Copyright Elasticsearch 2013. Copying, publishing and/or distributing without written permission is strictly prohibited
GET /twitter/tweet/1/_percolate
Percolate existing doc
1) index that contains the document
2) and the queries (_percolator type)
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Copyright Elasticsearch 2013. Copying, publishing and/or distributing without written permission is strictly prohibited
GET /twitter/tweet/1/_percolate
Percolate existing doc
type & id of the existing doc
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Copyright Elasticsearch 2013. Copying, publishing and/or distributing without written permission is strictly prohibited
GET /twitter/tweet/1/_percolate?
percolate_index=my-percolator
Percolate existing doc
separate index where the queries are
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Copyright Elasticsearch 2013. Copying, publishing and/or distributing without written permission is strictly prohibited
GET /twitter/tweet/_percolate/count -d '
{
“doc”: {
"tweet": "#elasticsearch is AWESOME",
"nick": "@lucacavanna",
"name": "Luca Cavanna",
"date": "2013-10-02",
"rt": 5,
"loc": {
! "lat": 13.4,
! "lon": 52.5
}
}
}
'
Percolate count api
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Percolate count api
{
"took": 9,
“_shards” : {
“total” : 5,
“successful” : 5,
“failed” : 0
},
“count” : 1
}
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Copyright Elasticsearch 2013. Copying, publishing and/or distributing without written permission is strictly prohibited
GET /twitter/tweet/_percolate -d '
{
“doc” : {
"tweet": "#elasticsearch is AWESOME",
"nick": "@lucacavanna"
},
“filter” : {
“term” : {“user.nick” : “lucacavanna”}
}
}
'
Support for filters
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Highlighting
PUT /twitter/_percolator/1 -d '
{
"query": {
"match": { "tweet": "elasticsearch" }
}
}
'
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Copyright Elasticsearch 2013. Copying, publishing and/or distributing without written permission is strictly prohibited
Highlighting
PUT /twitter/_percolator/1 -d '
{
"query": {
"match": { "tweet": "elasticsearch" }
}
}
'
PUT /twitter/_percolator/2 -d '
{
"query": {
"match": { "tweet": "awesome" }
}
}
'
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Copyright Elasticsearch 2013. Copying, publishing and/or distributing without written permission is strictly prohibited
GET /twitter/tweet/_percolate -d '
{
“doc”: {
"tweet": "#elasticsearch is AWESOME"
},
“highlight”: {
“fields” : { “tweet”:{} }
},
“size” : 5
}
'
Highlighting
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Copyright Elasticsearch 2013. Copying, publishing and/or distributing without written permission is strictly prohibited
{
.........
“matches”: [
{
“_index” : “twitter”,
“_id” : “1”,
"tweet": "#elasticsearch is AWESOME"
},
{
“_index” : “twitter”,
“_id” : “2”,
"tweet": "#elasticsearch is AWESOME"
}
]
}
'
Highlighting
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PUT /_percolator/twitter/es-tweets -d '
{
"query": {
"match": { "tweet": "elasticsearch" }
},
“user”: {
“name” : “Luca Cavanna”,
“nick” : “lucacavanna”
}
}
'
Copyright Elasticsearch 2013. Copying, publishing and/or distributing without written permission is strictly prohibited
Basic scoring
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Copyright Elasticsearch 2013. Copying, publishing and/or distributing without written permission is strictly prohibited
Basic scoring
PUT /_percolator/twitter/es-tweets -d '
{
"query": {
"match": { "tweet": "elasticsearch" }
},
“user”: {
“name” : “Luca Cavanna”,
“nick” : “lucacavanna”
}
}
'
GET /twitter/tweet/_percolate -d '
{
“doc” : {
"tweet": "#elasticsearch is AWESOME",
"nick": "@lucacavanna"
},
“query” : {
“match” : {“user.name” : “Luca”}
}
}
'
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Slide 108 text
Copyright Elasticsearch 2013. Copying, publishing and/or distributing without written permission is strictly prohibited
Basic scoring
PUT /_percolator/twitter/es-tweets -d '
{
"query": {
"match": { "tweet": "elasticsearch" }
},
“user”: {
“name” : “Luca Cavanna”,
“nick” : “lucacavanna”
}
}
'
GET /twitter/tweet/_percolate -d '
{
“doc” : {
"tweet": "#elasticsearch is AWESOME",
"nick": "@lucacavanna"
},
“query” : {
“match” : {“user.name” : “Luca”}
}
}
'
How well does
it match?
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Copyright Elasticsearch 2013. Copying, publishing and/or distributing without written permission is strictly prohibited
Sorting
Sort by score
Only return the score
Limit number of results
Further improvements
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Copyright Elasticsearch 2013. Copying, publishing and/or distributing without written permission is strictly prohibited
Sorting
Sort by score
Only return the score
Limit number of results
Further improvements
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Copyright Elasticsearch 2013. Copying, publishing and/or distributing without written permission is strictly prohibited
Sorting
Sort by score
Only return the score
Limit number of matches
Further improvements
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Copyright Elasticsearch 2013. Copying, publishing and/or distributing without written permission is strictly prohibited
Sorting
Sort by score
Only return the score
Limit number of matches
Boosting based on metadata
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Slide 113 text
Copyright Elasticsearch 2013. Copying, publishing and/or distributing without written permission is strictly prohibited
Sorting
Sort by score
Only return the score
Limit number of matches
Boosting based on metadata
Further improvements
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Copyright Elasticsearch 2013. Copying, publishing and/or distributing without written permission is strictly prohibited
Multi percolate
GET /_mpercolate
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Copyright Elasticsearch 2013. Copying, publishing and/or distributing without written permission is strictly prohibited
Multi percolate
GET /_mpercolate
{“percolate” : {“index”:”twitter”, “type”:”tweet”} }
{“doc”: {“text”:“elasticsearch is AWESOME!”} }
{“percolate” : {“index”:”twitter”, “type”:”tweet”, “id”:”id1”} }
{}
{“count” : {“index”:”twitter”, “type”:”tweet”} }
{“doc”: {“text”:“elasticsearch rocks!”} }
{“count” : {“index”:”twitter”, “type”:”tweet”, “id”:”id2”} }
{}
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Copyright Elasticsearch 2013. Copying, publishing and/or distributing without written permission is strictly prohibited
www.elasticsearch.org