Hi! To repeat the problem, do the following
1. Start a node1 of SolrCloud (4.3.1 default configs) (java -Dbootstrap_confdir=./solr/collection1/conf -Dcollection.configName=myconf -DzkRun -jar start.jar) 2. Import to collection1 -> shard1 some data 3. Try group.query e.g. http://node1:8983/solr/collection1/select?q=*:*&group=true&group.query=someFiled:someValue. it is important to have hit on index data. 4. The result is, there is no error 5. Start a node2 of SolrCloud (java -Djetty.port=7574 -DzkHost=localhost:9983 -jar start.jar) 6. On node2 add new core for collection1 -> shard2. Default core "collection1" unload. We have one collection over two shard. Shard1 - have data, shard2 - no data. 7. Again try group.query http://node1:8983/solr/collection1/select?q=*:*&group=true&group.query=someFiled:someValue . 8. Error: shard 0 did not set sort field values (FieldDoc.fields is null); you must pass fillFields=true to IndexSearcher.search on each shard How i can set "fillFields=true to IndexSearcher.search" ? Thanks in advance, Evgeny