Page rank

English:Fess
1

(from github.com/Anders-Bergqvist)
Where is page rank stored in Fess/Elastic? If I remove an index and then starts to crawl the same pages, are the page rank lost? Can I back up page rank?

2

(from github.com/marevol)
Fess does not support Page Rank by default.

3

Ho can it support page rank please