Hi Giovanni, i think there is a bug in solr (cloud only)
https://issues.apache.org/jira/browse/SOLR-5046 i've prepared a patch, that needs some review and improvements (my solr core knowledge is limited here :)) Maybe you can try the patch and vote for the issue in jira. What i know by now: when you can use group.field=dd instead of group.query it works. And also it seems that this is an issue when you have one shard not matching your docst Cheers Timo Gesendet: Montag, 10. November 2014 um 12:41 Uhr Von: "Giovanni Bricconi" <giovanni.bricc...@banzai.it> An: solr-user <solr-user@lucene.apache.org> Betreff: is group.query supported in solrcloud (4.8) ? hello I have a collection 0_2014_10_11 made of three shards When I try a group.query, even specifying a single shard, i get this error "shard 0 did not set sort field values (FieldDoc.fields is null); you must pass fillFields=true to IndexSearcher.search on each shard" This is the request, ask the collection to find groups on IDCat3=922 http://src-dev-1:8080/solr/0_2014_10_11/select?q=*:*&group=true&group.query=IDCat3%3A922&shards=src-dev-1:8080/solr/0_2014_10_11_shard1_replica2 According to this page [ https://cwiki.apache.org/confluence/display/solr/Result+Grouping ] the group.query is supported. Am I missing some key parameter? Should the shards parameter be really mandatory? It seems that with group.field it is not required. Thanks Giovanni
