we have a eMall application based mainly around a ~500k rows MySQL master table (with detail tables storing non searchable fields and other related tables with shop info etc).
Users can today search based on specific structured product data (e.g. brand, category, price, specific shop etc).
We would also like to support keyword search in combination with the structured data.
We also want to improve the performance of our application and are considering our infrastructure options to achieve both the functional requirement of keyword search and the technical requirement of improved speed:
Lucene, Sphinx etc to index all products? A NoSQL db (mongo, couch etc) used as an intermediate cache layer in front of MySQL? A NOSQL db to replace MySQL?
A combination of the above?
In the case of Lucene and Sphinx - how flexible are they in terms of combining structured criteria? Or would we need to first run a text search and then filter the results with a second structured query on mySQL?
Any hints or leasons learned from your own experiences would be more than welcome!
thanks in advance
I have been using Sphinx for full text searching similar to your requirements (searching based on freetext and structured attributes), with a few GB of data & 5M rows in MySQL. I am very satisfied with the performance and reliability (not even a single downtime).
The advantage in using Sphinx is it is targeted to use with MySQL, so it is really easy to setup. Normally you can have the whole system ready in less than an hour, so why not give it a try?