Use case for Apache Solr

[Hussein Baghdadi]

Hey,
Apache Solr is a search server built using Lucene.
When to use Solr and why? What are the typical use cases for Solr?
Thanks.

[David Newton]

Is there information missing from the Solr home page that would help you answer that question? I mean, it's pretty straight-forward in describing what it is.

Perhaps the Solr feature list would help you?

[Ankit Garg]

There were some discussions like this and this where you can see Solr's use cases...