Hi, Solr uses DocValues and falls back to wrapping with UninvertingReader, if user have not indexed them (with negative startup performance and memory effects). But in general, you should really enable DocValues for fields you want to sort on.
Uwe ----- Uwe Schindler H.-H.-Meier-Allee 63, D-28213 Bremen http://www.thetaphi.de eMail: u...@thetaphi.de > -----Original Message----- > From: Clemens Wyss DEV [mailto:clemens...@mysign.ch] > Sent: Monday, February 23, 2015 2:20 PM > To: java-user@lucene.apache.org > Subject: AW: Lucene 4.x -> 5 : IllegalStateException while sorting > > Thanks for pointer. How does/did this change make its way into Solr? > > -----Ursprüngliche Nachricht----- > Von: András Péteri [mailto:apet...@b2international.com] > Gesendet: Montag, 23. Februar 2015 14:13 > An: java-user@lucene.apache.org > Betreff: Re: Lucene 4.x -> 5 : IllegalStateException while sorting > > Hi Clemens, > > I think this part of the release notes [1] applies to your case: > > * FieldCache is gone (moved to a dedicated UninvertingReader in the misc > module). This means when you intend to sort on a field, you should index > that field using doc values, which is much faster and less heap consuming > than FieldCache. > > [1] https://wiki.apache.org/lucene-java/ReleaseNote50 > > On Mon, Feb 23, 2015 at 1:24 PM, Clemens Wyss DEV > <clemens...@mysign.ch> > wrote: > > > After upgrading to Lucene 5 one of my unittest which tests sorting > > fails > > with: > > unexpected docvalues type NONE for field 'providertestfield' > > (expected=SORTED). Use UninvertingReader or index with docvalues > > > > What am I missing? > > > > -- > András > > --------------------------------------------------------------------- > To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org > For additional commands, e-mail: java-user-h...@lucene.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e-mail: java-user-h...@lucene.apache.org
