Hey Alok I don't think that the group performance is bad on integer fields. But try to load all results in one query is very memory consuming.
Did you try to only load the first 1000 results with rows=1000 and start=0 ? To get the total group count you can use the group.ngroups=true param. Bests Sandro Zbinden -----Ursprüngliche Nachricht----- Von: Alok Bhandari [mailto:alokomprakashbhand...@gmail.com] Gesendet: Donnerstag, 3. Oktober 2013 12:31 An: solr-user@lucene.apache.org Betreff: Solr grouping performace Hello , I am using solr 4.0 , I want to group entries on one of the int field , I need all the groups and group.limit is 1. I am getting very slow performance and some times I am getting OutOfMemory also. My index is having 20 million records and out of which my search result returns 1 million document and I do grouping on these 1 million docs. The side of data on disk is approx 2GB and I am having Xmx 2GB. Please can anyone help me out in this. performance is very slow it takes 10-12 seconds. Thanks , Alok -- View this message in context: http://lucene.472066.n3.nabble.com/Solr-grouping-performace-tp4093300.html Sent from the Solr - User mailing list archive at Nabble.com.
