oh thx for your fast reply. i will try the suggestions.
in meanwhile more information about my index. i have 2 solr instances with 6 cores. each core have his own index and one core`s index is about 30 million documents. each document have:(stats-relevant) amount amount_euro currency_id user_costs user_costs_euro currency_id_user_costs so i send for each currency an requeston statscompontn like this stats=true&json.nl=map&wt=javabin&rows=0&version=2&fl=uniquekey,score&start=0&stats.field=amount&q=QUERY&isShard=true&fq=product:bla+currency_id:EUR&fsv=true the stats.field is changing and filter for each of my 5 currencys. so for ONE search-request, i need to send 10 requests to get the sums. and that veeery slow =( i searching over two shards. sometimes more than two. -- View this message in context: http://lucene.472066.n3.nabble.com/Tuning-StatsComponent-tp2225809p2226258.html Sent from the Solr - User mailing list archive at Nabble.com.