Hi, This would also depend on the amount of documents you got in your solr index.
10k ? 100k? 1m? 10m? 100m? I'm by no means an expert on solr but i recently had a similar question and to get my answer i grabbed a new blank solr index, modiefied my schema.xml, reindexed all my data assuming the worst case. Make up something like 100k (pick a number that seams realistic and multiply by 10) different catalog names and assign 2000 to each document randomly. Let your computer crunch bits for a few hours to rebuild an index (close to 10m documents in my case), copy the index to a server similar to your production server and see what happens :) For me there was no noticeable performance difference. Constantijn Visinescu On Tue, Aug 18, 2009 at 1:15 AM, Aravind Naidu <aravind.na...@vsc.ph> wrote: > > Hi, > The possibility is that all items in this field could be unique. Let me > clarify. > The main Solr index is a for a list of products. Some products belong to > catalogues. So, the consideration is to add a multi-valued field to put > the > id of the catalogue in each product as a multi-valued field to be used as a > filter. > > -- Aravind > > > Jason Rutherglen-2 wrote: > > > > Your term dictionary will grow somewhat, which means the term > > index could consume more memory. Because the term dictionary has > > grown there could be less performance in looking up terms but > > that is unlikely to affect your application. How many unique > > terms will there be? > > > > On Mon, Aug 17, 2009 at 3:50 PM, Arv<aravind.na...@vsc.ph> wrote: > >> > >> All, > >> We are considering some new changes to our Solr schema to better support > >> some new functionality for our application. To that extent, we want to > >> add > >> an additional field that is multi-valued, but will contain a large > number > >> of > >> values per document. Potentially up to 2000 values on this field per > >> document. > >> > >> Questions: > >> - Is this wise? > >> - Though we will not be faceting on this field, are there any > >> implications > >> for performance? > >> - I understand that the XML in/out will be large, and we may need to > stop > >> this field being sent back on every query, as this field is essentially > >> used > >> as a filter only. > >> > >> The reason I am asking is that our instance of Solr currently works > >> wonderfully and is very fast, and I am wary of doing anything that will > >> affect this. So, any pointer on design here will help. > >> > >> -- Aravind > >> > >> -- > >> View this message in context: > >> > http://www.nabble.com/Maximum-number-of-values-in-a-multi-valued-field.-tp25015685p25015685.html > >> Sent from the Solr - User mailing list archive at Nabble.com. > >> > >> > > > > > > -- > View this message in context: > http://www.nabble.com/Maximum-number-of-values-in-a-multi-valued-field.-tp25015685p25015945.html > Sent from the Solr - User mailing list archive at Nabble.com. > >
