Solr commit and optimize questions

Question

I have a classifieds website. Users may put ads, edit ads, view ads etc.

Whenever a user puts an ad, I am adding a document to Solr. I don\'t know, however, when to

Answer 1

Try it first. It would be really bad if you avoided a simple and elegant solution just because you read that it might cause a performance problem. In other words, avoid premature optimization.