1. First steps with Solr 4.7
Achraf KRID

2. Plan
•Definition
•Installation (with tomcat 7)
•Querying, faceting
•Indexation
•Configuration
•Symfony Integration
•Comparaison

3. Solr ?
SolrTM is the popular, blazing fast open source enterprise search platform from
the Apache LuceneTM project. Its major features include powerful full-text
search, hit highlighting, faceted search, near real-time indexing, dynamic
clustering, database integration, rich document (e.g., Word, PDF) handling, and
geospatial search.

4. Install Tomcat 7 + Solr 4.7
● Sudo apt-get install tomcat7 tomcat7-admin
● /etc/tomcat7/tomcat-users.xml
● http://localhost:8080/manager/html
● curl http://archive.apache.org/dist/lucene/solr/4.7.2/solr-4.7.2.tgz | tar xvz
● cp ~/solr-4.7.2/example/lib/ext/* /usr/share/tomcat7/lib/
● cp ~/solr-4.7.2/dist/solr-4.7.2.war /var/lib/tomcat7/webapps/solr.war
● cp -R ~/solr-4.6.1/example/solr /var/lib/tomcat
● chown -R tomcat7:tomcat7 /var/lib/tomcat7/solr
<tomcat-users>
<role rolename="manager-gui"/>
<user username="root" password="root" roles="manager-gui,admin-gui"/>
</tomcat-users>

5. Querying Data
java -jar start.jar
java -jar post.jar *.xml
http://solr/select?q=electronics
http://solr/select?q=electronics&sort=price+desc
http://solr/select?q=electronics&rows=50&start=50
http://solr/select?q=electronics&fl=name+price
http://solr/select?q=electronics&fq=inStock:true

6. Facets
&facet=true&facet.field=cat&facet.field=inStock
&facet.query=price:[0 TO 10]&facet.query=price:[10 TO *]

7. Schema.xml
●
01:<?xml version="1.0" encoding="UTF-8" ?>
●
02:<schema name="example" version="1.1">
●
03: <types>
●
04: <fieldType name="string" class="solr.StrField" sortMissingLast="true" omitNorms="true"/>
●
05: </types>
●
06:
●
07:
●
08: <fields>
●
09: <field name="id" type="string" indexed="true" stored="true" required="true" />
●
10: <field name="category" type="string" indexed="true" stored="true" multiValued="true" omitNorms="true"/>
●
11: <field name="size" type="string" indexed="true" stored="true"/>
●
12: <field name="text" type="string" indexed="true" stored="false" multiValued="true"/>
●
13: </fields>
●
14:
●
15: <uniqueKey>id</uniqueKey>
●
16: <defaultSearchField>text</defaultSearchField>
●
17: <solrQueryParser defaultOperator="AND"/>
●
18:
●
19: <copyField source="id" dest="text"/>
●
20: <copyField source="category" dest="text"/>
●
21: <copyField source="size" dest="text"/>
●
22:
●
23:</schema>
Where You Describe Your Data

8. Schema.xml
●<field> Describes How You Deal With Specific Named Fields
●<dynamicField> Describes How To Deal With Fields That Match A Glob
(Unless There Is A Specific <field> For Them)
●<copyField> Describes How To Construct Fields From Other Fields
<field name="title" type="text" stored=”false” />
<dynamicField name="price*" type="sfloat" indexed="true" />
<copyField source="*" dest="catchall" />

9. Schema.xml
Analyzer
<fieldType name="text_greek" class="solr.TextField">
<analyzer class="org.apache.lucene.analysis.el.GreekAnalyzer"/>
</fieldType>

10. Schema.xml
Tokenizers : A Tokenizer splits a stream of characters (from each individual
field value) into a series of tokens.There can be only one Tokenizer in each
Analyzer.
Token Filters :Tokens produced by the Tokenizer are passed through a series
of Token Filters that add, change, or remove tokens. The field is then indexed by
the resulting token stream.
<analyzer type="index">
<tokenizer class="solr.StandardTokenizerFactory"/>
<filter class="solr.StopFilterFactory" ignoreCase="true"
words="stopwords.txt" enablePositionIncrements="true" />
<filter class="solr.LowerCaseFilterFactory"/>
</analyzer>

11. AnalysisTool: Output

12. Solrconfig.xml
solrconfig.xml is where you configure options for how this Solr instance should
behave.

13. Solrconfig.xml
 DataImportHandler
● Create lib/ directory in /var/lib/tomcat/solr
● Add the data import handler jars to lib/ :
cp ~/solr-4.7.2/dist/solr-dataimporthandler-*.jar /var/lib/tomcat7/solr/lib
● Add DBMS Driver (for mysql → mysql-connector-java-bin.jar)
● Add requestHndler to solr/conf/solrconfig.xml
<requestHandler name="/dataimport"
class="org.apache.solr.handler.dataimport.DataImportHandler">
<lst name="defaults">
<str name="config">data-config.xml</str>
</lst>
</requestHandler>

14. Data-config.xml
<dataConfig>
<dataSource type="JdbcDataSource" driver="com.mysql.jdbc.Driver"
url="jdbc:mysql://127.0.0.1/restofraisweb" user="root" password="root" />
<document name="restofrais">
<entity name="Restaurant" query="SELECT id, nomRestaurant, ville_restaurant_id,code_postal_id,
type_cuisine_id FROM Restaurant">
<field column="id" name="id" />
<field column="nomRestaurant" name="nomRestaurant" />
<entity name="Ville" query="SELECT designation FROM Ville where id=$
{Restaurant.ville_restaurant_id}" >
<field column="designation" name="ville" />
</entity>
<entity name="Boisson" query="SELECT designation FROM restaurants_boissons inner join
Boisson on Boisson.id = restaurants_boissons.boisson_id where restaurants_boissons.restaurant_id=$
{Restaurant.id}" >
<field column="designation" name="boissons" />
</entity>
</entity>
</document>
</dataConfig>

15. Symfony Integration
•Solr->Solarium->nelmio_solarium
•Composer.json
•AppKernel.php
•Config/config.yml
{
"require": {
"nelmio/solarium-bundle": "2.*"
}
}
public function registerBundles()
{
$bundles = array(
...
new NelmioSolariumBundleNelmioSolariumBundle(),
...
);
...
}
nelmio_solarium:
endpoints:
default:
host: 172.16.0.219
port: 8080
path: /solr/restofrais
# core: solr
timeout: 5
clients:
default:
client_class:
SolariumCoreClientClient
adapter_class:
SolariumCoreClientAdapterHttp

16. Symfony Integration
• /**
• * @Route("/hello/{name}", name="_demo_hello")
• * @Template()
• */
• public function helloAction($name)
• {
•
• $client = $this->get('solarium.client');
•
• $select = $client->createSelect();
•
• $select->setQuery("ville:".$name);
•
• $results = $client->select($select);
• return array(
• 'search_results' => $results,
• );

17. Apache Solr vs ElasticSearch
Solr & ElasticSearch
•Lucene Apache Based
•Faceting
•Boosting
Solr :
•Pivot Facets
•One set of fields per schema, one schema per core
ElasticSearch :
•REST API
•Structured Query DSL
•Percolation

18. Apache Solr vs ElasticSearch

19. Apache Solr vs ElasticSearch

20. Links
●Solr wiki
http://wiki.apache.org/solr/
●Install Solr 4.6 with Tomcat 7 on Debian 7 :
http://pacoup.com/2014/02/05/install-solr-4-6-with-tomcat-7-on-debian-7
●solr-vs-elasticsearch.com :
http://solr-vs-elasticsearch.com
●Nelmio Solarium Bundle :
https://github.com/nelmio/NelmioSolariumBundle
●The Many Facets of Apache Solr, Yonik Seeley
http://www.youtube.com/watch?v=LyjiLYN-qIk