Michael Sokolov [msoko...@safaribooksonline.com] wrote: > I wonder if there's any value in providing this metric (total index size > - stored field size - term vector size) as part of the admin panel? Is > it meaningful? It seems like there would be a lot of cases where it > could give a good rule of thumb for memory sizing, and it would save > having to root around in the index folder.
At Lucene/Solr Revolution, I talked with Alexandre Rafalovitch about this. We know (https://lucidworks.com/blog/sizing-hardware-in-the-abstract-why-we-dont-have-a-definitive-answer/) that we cannot get the full picture of an index, but it is a weekly occurrence on this mailing list that people asks questions where it helps to have a gist of the index metrics and how the index is used. Some sort of "Copy the content of this concentrated metrics box, when you need to talk with other people about your index"-functionality in the admin panel might help with this. To get an idea of usage, it could also contain a few non-filled fields, such as "peak queries per second" or "typical queries". - Toke Eskildsen
