Intro to Apache Solr

Learn the capabilities of Apache Solr, including how to run in standalone and cloud mode as well as how to contribute

1. Apache Solr
Introduction & Demo

2. •What is Apache Solr?
•Start/stop Solr
•Indexing data to Solr
•Searching data
•Running a SolrCloud cluster
•Hacking Solr
Agenda

3. •Lucene based search server + other features
•Access Lucene over HTTP:
•Java, Python, Ruby, .NET, PHP over XML/JSON and
other formats
•Faceting (guided navigation), suggestions,
highlighting etc.
•Replication and distributed search
•Lucene best practices
What is Apache Solr?

4. •Extract:
•tar xvf solr-5.1.0.tgz (linux/mac)
•unzip solr-5.1.0.zip or click+extract (windows)
•Run:
•./bin/solr start -e schemaless
•./bin/solr start -e schemaless -p 8983
•./bin/solr -help
•./bin/solr start -help
•Stop:
•./bin/solr stop
Running Solr

5. •./bin/post script
•Using curl directly
•Using the Admin UI
•SolrJ and other indexing clients
Indexing data

6. Demo time

7. Inverted index

8. •+red +shoes = red AND shoes
•+shoes -red = shoes NOT red
•“android phone”
•“android phone” -samsung = “android phone” NOT samsung “android
samsung”~4
•merced*
•createDate:[201301 TO 201401]
•author:shalin
•author:”shalin mangar”
•author:”shalin mangar” AND project:(lucene OR solr) title:samsung^5
category:phone
Lucene/Solr query syntax

9. •DataImportHandler: Index databases, Email, RSS, XMLs etc.
•Rich document support: PDF, MS Office, Images etc.
•Faceting, stats, analytics
•Replication for high query volume
•Production systems with billions of documents
•Very extensible and customizable
•Embedded in commercial search products from Lucidworks,
DataStax, Cloudera, Hortonworks, Pivotal, Amazon
Cloudsearch, Riak etc.
Other features of Solr

10. •Subset of optional features in Solr to enable and
simplify horizontal scaling a search index using
sharding and replication
•Goals: scalability, performance, high-availability,
simplicity, and elasticity
What is SolrCloud?

11. •./bin/solr -e cloud
•Yeah, it’s that simple!
Running SolrCloud

12. SolrCloud demo

13. •http://wiki.apache.org/solr/HowToContribute
•Pre-requisites:
•git: git clone http://git-wip-us.apache.org/repos/asf/
lucene-solr.git
•github: fork and clone apache/lucene-solr
•ant 1.8.x or above
•Eclipse or Intellij Idea (I recommend Idea)
•Put svn/git and ant in your $PATH or %PATH%
Hacking Solr

14. •ant ivy-bootstrap (required only once)
•ant idea or ant eclipse (generated a complete project for you which
you can open in your favourite IDE)
•Find an existing Jira issue or open a new one at http://
issues.apache.org/jira/browse/SOLR
•Make changes, write tests, once finished:
•run ‘cd solr; ant server’ to build Solr and start via bin/solr scripts
•run ‘ant test’ (it can take a while), ensure all tests pass
•run ‘ant precommit’, (run from the checkout root) ensure it passes
•Generate a patch with ‘svn diff’ or ‘git diff’ and attach to Jira
Hacking Solr

15. •http://lucene.apache.org/solr
•https://cwiki.apache.org/confluence/display/solr/
Apache+Solr+Reference+Guide
•https://issues.apache.org/jira/browse/SOLR
•Ask me: solr-help.slack.com
•Ask other users: [email protected]
•Ask developers: [email protected] (use
sparingly)
Resources

16. Thank you
Shalin Shekhar Mangar, [email protected]