Creating a cross-platform forum search function

[eluser]TheFuzzy0ne[/eluser]
I was referring to [url="http://ellislab.com/forums/viewthread/74616/#518110"]this post[/url].

[quote author="Henry Weismann" date="1232335414"]Search lucene is meant to be implemented in large scale websites. For instance if you are using a tagging system of any kind you will find out that after you reach 1 million tagged entries your application will start bogging down and becoming very slow. That is because rdbms databases have scalability issues when dealing with extremely large data sets using "expensive" queries on those datasets. Search lucene based on the java library apache lucene is much faster. You can also look into hadoop.

But if you are using it on a small dataset it's like using a sledge hammer to push in a thumb tack.[/quote]