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My domain object has 20 properties(columns, attributes, whatever you call it) and simple relationships. I want to index 5 properties for full-text search and 3 for sorting. There might be 100,000 records.
To keep my application simple, I want to store the fields in a Lucene index file to avoid introducing a database. Will there be a performance problem?
Depending on how you access stored fields, they may all be loaded into memory (basically, if you use a FieldCache everything will be cached into memory after the first use). And if you have a gig of storage which is taking up memory, that’s a gig less to use for your actual index.
Depending on how much memory you have, this may be a performance enhancement, or a performance detriment.