> -----Original Message----- > From: Mike Klaas [mailto:[EMAIL PROTECTED] > Sent: Thursday, May 31, 2007 9:07 PM > To: solr-user@lucene.apache.org > Subject: Re: facet question > > On 31-May-07, at 1:33 AM, Gal Nitzan wrote: > > > Hi, > > > > We have a small index with about 4 million docs. > > > > On this index we have a field "tags" which is a multiple values field. > > > > Running a facet query on the index with something like: > > facet=true&facetField=tags&q=type:video takes about 1 minute. > > > > We have defined a large cache which enables the query to run much > > faster > > (about 1 sec) > > > > <filterCache > > class="solr.LRUCache" > > size="1500000" > > initialSize="600000" > > autowarmCount="300000"/> > > > > > > However, the cache size brings us to the 2GB limit. > > If the cardinality of many of the tags is low, you can use HashSet- > based filters (the default size at which a HashSet is used is 3000). [Gal Nitzan]
I will appreciate a pointer to documentation on HahsSet based filters tahnks... > > Do you really have 1.5M unique values in that field. Are you > analyzing the field (you probably shouldn't be)? [Gal Nitzan] No it is not analyzed. Just indexed and stored. > > -Mike [Gal Nitzan]
