[SOLR-3436] Groups count in distributed grouping is wrong in some case

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.4, 3.5, 3.6, 4.0-ALPHA
• Fix Version/s: 3.6.1, 4.0-ALPHA
• Component/s: SearchComponents - other
• Labels: distributed grouping

Environment

MacOs X Lion, Java 1.6.0_31

• Assignee: Unassigned
• Reporter: Francois Perron
• Created: 04/May/12 13:40
• Updated: 22/Jul/12 16:05
• Resolved: 15/May/12 19:25

Description

The count of groups in distributed grouping environment only show results from shards used in the second pass.

How to reproduce :

Ask for only 1 document (ROWS=1) in a 2 shards environnement with GROUPS.NGOURP=true and of course with GROUPS.FIELD=fieldA.

Results :

It will only display the total of a shard (the one used for the second pass)

Expected results :

Sum all groups count from ALL shards.

Issue Links

• relates to: SOLR-3316 Distributed Grouping fails in some scenarios.