Building a tag cloud with solr

Question

Dear stackoverflow community :

Given some text, I wish to get the TOP 50 most frequent words in the text, and create a tag cloud out of it, and thus show the gist of wha

Answer 1

If a Lucene document is a comment, you could use faceting to do so. For example, the following request http://solr:port/solr/select?q={!lucene}uniqueKey:(MA147LL/A OR 3007WFP)&facet=true&facet.field=includes&facet.minCount=1&facet.limit=50 would help you build a tag cloud for comments MA147LL/A and 3007WFP.

However, this approach would :

• make Solr instantiate an UnInvertedField instance for the includes field, which required memory,
• count the number of documents which match a term instead of the total number of occurrences of this term.