Hello - regarding fairly random/smooth distribution, you will notice it for sure. A solution there is to use distributed collection statistics. On top of that you might want to rely on docCount, not maxDoc inside your similarity implementation, because docCount should be identical in both collections. maxDoc is not really deterministic it seems, since identical replica's do not merge segments at the same time.
Markus -----Original message----- > From:Scott Stults <sstu...@opensourceconnections.com> > Sent: Tuesday 27th October 2015 21:18 > To: solr-user@lucene.apache.org > Subject: Re: Solr collection alias - how rank is affected > > Collection statistics aren't shared between collections, so there's going > to be a difference. However, if the distribution is fairly random you won't > notice. > > On Tue, Oct 27, 2015 at 3:21 PM, SolrUser1543 <osta...@gmail.com> wrote: > > > How is document ranking is affected when using a collection alias for > > searching on two collections with same schema ? is it affected at all ? > > > > > > > > -- > > View this message in context: > > http://lucene.472066.n3.nabble.com/Solr-collection-alias-how-rank-is-affected-tp4236776.html > > Sent from the Solr - User mailing list archive at Nabble.com. > > > > > > -- > Scott Stults | Founder & Solutions Architect | OpenSource Connections, LLC > | 434.409.2780 > http://www.opensourceconnections.com >
