I’ve written few Drupal ApacheSolr install guides here and this one is basically an install draft for Ubuntu.
Environment: Ubuntu 10.10, Apache, PHP, MySQL, Drupal 6.20
Things to install / setup: Solr, Tomcat6, ApacheSolr module for Drupal, and SolrPHPClient library
1.) Install Tomcat and setup your Tomcat admin user.
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| aptitude install tomcat6 tomcat6-admin tomcat6-common tomcat6-user
vi /etc/tomcat6/tomcat-users.xml
<role rolename="admin"/>
<role rolename="manager"/>
<user username="tomcat" password="password" roles="admin,manager"/>
/etc/init.d/tomcat6 restart
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If all is good you will be able to access Tomcat admin at http://hostname:8080. Default page will show with links to admin section, etc.
2.) Install Solr
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| wget http://apache.rediris.es/lucene/solr/1.4.1/apache-solr-1.4.1.zip
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check for updates
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| unzip apache-solr-1.4.1.zip
mkdir /usr/share/tomcat6/webapps
cp apache-solr-1.4.1/dist/apache-solr-1.4.1.war /usr/share/tomcat6/webapps/solr.war
cp -r apache-solr-1.4.1/example/solr /usr/share/tomcat6/solr
vi /etc/tomcat6/Catalina/localhost/solr.xml
<Context docBase="/usr/share/tomcat6/webapps/solr.war" debug="0" privileged="true" allowLinking="true" crossContext="true">
<Environment name="solr/home" type="java.lang.String" value="/usr/share/tomcat6/solr" override="true" />
</Context>
chown -r tomcat6.tomcat6 /var/lib/tomcat6
/etc/init.d/tomcat6 restart
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You should see Solr access on your Tomcat admin/manager page (http://hostname:8080/manager/html).
3.) Connect Drupal Site to Solr (multi-core setup)
I already have a Drupal site with ApacheSolr module installed and SolrPHPclient library.
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| cp /path/drupal_site/sites/all/modules/apachesolr/schema.xml /usr/share/tomcat6/solr/conf/schema.xml
cp /path/drupal_site/sites/all/modules/apachesolr/solrconfig.xml /usr/share/tomcat6/solr/conf/solrconfig.xml
cp apache-solr-1.4.1/example/multicore/solr.xml /usr/share/tomcat6/solr/
mkdir /usr/share/tomcat6/solr/site_sample1
cp -r /usr/share/tomcat6/solr/conf /usr/share/tomcat6/solr/site_sample1/conf
vi /usr/share/tomcat6/solr/solr.xml`
<core name="site1" instanceDir="site_sample1" />
chown -R tomcat6:root /usr/share/tomcat6/solr/
/etc/init.d/tomcat6 restart
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Visit ApacheSolr settings of your Drupal admin and enter the configuration:
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| Solr Hostname: localhost
Solr Port: 8080
Solr Path: /solr/site1
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To add new site to Solr:
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| mkdir /usr/share/tomcat6/solr/site_sample2
cp -r /usr/share/tomcat6/solr/conf /usr/share/tomcat6/solr/site_sample2/conf
vi /usr/share/tomcat6/solr/solr.xml
<core name="site2" instanceDir="site_sample2" />
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That’s All.