[SOLR-2955] Distributed grouping throws IllegalStateException when querying with group.sort=score desc

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.5, 4.0-ALPHA
• Fix Version/s: 3.6, 4.0-ALPHA
• Component/s: search
• Labels: collapse exception grouping

Environment

Mac OS X 10.7.2
Java version "1.6.0_29"
Java(TM) SE Runtime Environment (build 1.6.0_29-b11-402-11M3527)
Java HotSpot(TM) 64-Bit Server VM (build 20.4-b02-402, mixed mode)

• Assignee: Martijn van Groningen
• Reporter: Steffen Elberg Godskesen
• Created: 08/Dec/11 11:01
• Updated: 10/May/13 10:40
• Resolved: 09/Dec/11 13:50

Description

To reproduce:

• Start example configuration from 3.6 or 4.0 distribution, and add example .xml documents to index
• Query: http://localhost:8983/solr/select?q=*:*&sort=id%20asc&group=true&group.sort=score%20desc&group.field=manu_id_s&shards=localhost:8983/solr

This will log

Dec 8, 2011 10:01:23 AM org.apache.solr.common.SolrException log
SEVERE: java.lang.IllegalStateException: All required fields must be set
	at org.apache.solr.search.grouping.distributed.command.TopGroupsFieldCommand$Builder.build(TopGroupsFieldCommand.java:94)
	at org.apache.solr.handler.component.QueryComponent.process(QueryComponent.java:291)
	at org.apache.solr.handler.component.SearchHandler.handleRequestBody(SearchHandler.java:194)
	.
	.

For other (legal) values of group.sort or without the shards parameter, the query succeeds.