Hi, thank you for making the new apache-solr-3.1 available.
I have installed the version from http://apache.tradebit.com/pub//lucene/solr/3.1.0/ and am running into very slow stats component queries (~ 1 minute) for fetching the computed sum of the stats field url: ?q=*:*&start=0&rows=0&stats=true&stats.field=weight <int name="QTime">52825</int> #documents: 78,359,699 total RAM: 256G vm arguments: -server -xmx40G the stats.field specification is as follows: <field name="weight" type="pfloat" indexed="true" stored="false" required="true" multiValued="false" default="1"/> filter queries that narrow down the #docs help to reduce it - QTime seems to be proportional to the number of docs being returned by a filter query. Is there any way to improve the performance of such stats queries ? Caching only helped to improve the filter query performance but if larger subsets are being returned, QTime increases unacceptably. Since I only need the sum and not the STD or sumsOfSquares/Min/Max, I have created a custom 3.1 version that does only return the sum. But this only slightly improved the performance. Of course I could somehow cache the larger sum queries on the client side but I want to do this only as a last resort. Thank you very much in advance for any ideas/suggestions. Johannes
