A quick and simple guide to get Drupal 7 and Apache Solr version 3.5 or higher running on your local development machine! For the ones that have been resistant in trying out Apache Solr, this is your chance. If you are running an OSX or Unix machine you could be running Apache Solr in under 5 minutes!
Follow these simple steps and you will become a Solr Master very soon!
This guide has been made for unix and mac users. Windows users can probably use the same guide except for the example folders. If you are using Search API most of these steps are applicable to that project as well.
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Download the Apache Solr 7.x-1.1 module from the Apachesolr module and place it in your drupal folder for contributed modules. Typically this is sites/all/contrib
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Enable ApacheSolr and ApacheSolr Search modules in admin/build/modules
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Download Apache Solr from a mirror near you : https://archive.apache.org/dist/lucene/solr/3.5.0/
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Unpack it somewhere outside your drupal installation and outside your web root/folder. Suggestion would be ~/Servers/apache-solr-3.5
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Go to sites/all/contrib/apachesolr/solr-conf/solr-3.x/ and copy all files to ~/Servers/apache-solr-3.5/example/solr/conf
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Open your command prompt and do ```cd ~/Servers/apache-solr-3.5/example```
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Type the following command to start the Apache Solr service ```java -jar start.jar``` If all went well your Solr Server is running now! Congratulations!
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Test your solr server admin interface by visiting http://localhost:8983/solr/admin
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Go to admin/config/search/apachesolr/settings and click on edit. Verify if the url http://localhost:8983/solr/ is correctly entered and click ok
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Optional : Facets
If you want Facets you should download Facet API and enable it. When this is done you can go to admin/config/search/apachesolr/facets and enable the facets you'd want
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Optional : Security
Careful because Solr comes unprotected. If you'd like to run Solr in a more permanent basis I would recommend to run it on Tomcat as described in my other guide http://www.nickveenhof.be/blog/setting-drupal-6-apache-solr-tomcat-6-and-ubuntu-910-karmic-koala and put an IP-filter in front of it.
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Optional : Multicore
if you want to run multicore you can type ```java -Dsolr.solr.home=multicore -jar start.jar``` Attention: All your files should be in multicore/core0/conf
Source original pdf : http://drupal.org/node/1332144
