Multiple or single index in Lucene?

Posted by Bruno Reis on Stack Overflow See other posts from Stack Overflow or by Bruno Reis
Published on 2010-04-30T17:54:39Z Indexed on 2010/04/30 17:57 UTC
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I have to index different kinds of data (text documents, forum messages, user profile data, etc) that should be searched together (ie, a single search would return results of the different kinds of data).

What are the advantages and disadvantages of having multiple indexes, one for each type of data?
And the advantages and disadvantages of having a single index for all kinds of data?

Thank you.

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