如何构建和搜索 Elasticsearch

Question

I'm building a Rails app with two models Users & Documents. A user can have 1,000s of documents.

I'm looking for advice on how to set this up with Rails and Elasticsearch. Should I use an index per each user in Elasticsearch?

Also, right now when I perform Document.search, it is returning @documents results for all users. What is the right way to limit search results to the particular Document.user_id. I'm guessing these two questions are related which is why I included them in one question.

Answer 1

Unless you were going to have a very small number of users with a very large (100s of thousands and more) you almost definitely don't want an index per user. There is a per index overhead which would become significant with large numbers of users.

One possible exception might be if different users were going to store documents with very different fields, but even then you'd be better off with a small number of indices rather than one per user.