:
: The problem is SlowCompositeReaderWrapper.wrap(searcher.getIndexReader());
: you hardly ever need to to this, at least because Solr already does it.
Specifically you should just use...
searcher.getLeafReader().getSortedSetDocValues(your_field_anme)
...instead of doing all this wrapping yourself.
If the field docValues="true" declared, this will all be precomputed at
index time and super fast. if not, then the UninvertingReader logic will
kick in once per searcher -- if you want to "pre-warm" it just configure a
requests that exercises your code as part of a firstSearcher and
newSearcher event listeners.
-Hoss
http://www.lucidworks.com/
