You could setup something almost like it. mlocate is the defacto indexed filename search for linux, and the update script skips directories that haven't been up

You could setup something almost like it. mlocate is the defacto indexed filename search for linux, and the update script skips directories that haven't been updated - so an update call is quite cheap. You could run it every 15m, and have 'almost' uptodate indexed search. Most systems should have it setup to run daily out of the box.