Thank you Erick for pointing out about DocValues. I re-indexed my data with it set to true and my index size grew by 20%. Is this expected?
Hi Nick, I'm not clear about SOLR-7495. Are you saying I should not use docValues=true if:type="int"and multiValued="true"? I'm on Solr 5.2.1. Thanks. Steve On Thu, May 26, 2016 at 9:29 PM, Nick D <ndrake0...@gmail.com> wrote: > Although you did mention that you wont need to sort and you are using > mutlivalued=true. On the off chance you do change something like > multivalued=false docValues=false then this will come in to play: > > https://issues.apache.org/jira/browse/SOLR-7495 > > This has been a rather large pain to deal with in terms of faceting. (the > Lucene change that caused a number of Issues is also referenced in this > Jira). > > Nick > > > On Thu, May 26, 2016 at 11:45 AM, Erick Erickson <erickerick...@gmail.com> > wrote: > > > I always prefer ints to strings, they can't help but take > > up less memory, comparing two ints is much faster than > > two strings etc. Although Lucene can play some tricks > > to make that less noticeable. > > > > Although if these are just a few values, it'll be hard to > > actually measure the perf difference. > > > > And if it's a _lot_ of unique values, you have other problems > > than the int/string distinction. Faceting on very high > > cardinality fields is something that can have performance > > implications. > > > > But I'd certainly add docValues="true" to the definition no matter > > which you decide on. > > > > Best, > > Erick > > > > On Wed, May 25, 2016 at 9:29 AM, Steven White <swhite4...@gmail.com> > > wrote: > > > Hi everyone, > > > > > > I will be faceting on data of type integers and I'm wonder if there is > > any > > > difference on how I design my schema. I have no need to sort or use > > range > > > facet, given this, in terms of Lucene performance and index size, does > it > > > make any difference if I use: > > > > > > #1: <field name="FACET_ID" type="string" multiValued="true" > > indexed="true" > > > required="true" stored="false"/> > > > > > > Or > > > > > > #2: <field name="FACET_ID" type="int" multiValued="true" indexed="true" > > > required="true" stored="false"/> > > > > > > (notice how I changed the "type" from "string" to "int" in #2) > > > > > > Thanks in advanced. > > > > > > Steve > > >
