Hello, we are upgrading solr from 1.3 to 4.0. In solr 1.3 we used the SOLR-236 patch to realize grouping/ field collapsing. We did not have a memory issue with the field collapsing feature in our 1.3 version. However, we do now. The query looks something like this:
http://localhost:8983/solr/select?fl=*,score&group.ngroups=true&group.limit=-1&group.field=someGroupingField&group=true&fq=someField:someValue&fq=anotherField:anotherValue&wt=xml&fq=thirdField:[0+TO+1]&rows=30000 as you can see the q parameter is empty, but it does not make a difference if I query for q=someValue+anotherValue The result returns: <int name="matches">3772</int> <int name="ngroups">2175</int> We have a memory consumption of about 4G. What causes this massive memory consumption? How can it be reduced? Regards, Claas -- View this message in context: http://lucene.472066.n3.nabble.com/massive-memory-consumption-of-grouping-feature-tp4031895.html Sent from the Solr - User mailing list archive at Nabble.com.