[SOLR-3960] Searching: PostFilter plugins ignored by solr cloud for queries with grouping

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 4.0-BETA
• Fix Version/s: 4.1, 6.0
• Component/s: search, SolrCloud
• Labels: patch

Environment

Linux / jre 1.6

• Assignee: Chris M. Hostetter
• Reporter: Nathan Visagan
• Created: 17/Oct/12 15:38
• Updated: 09/May/16 18:45
• Resolved: 27/Nov/12 03:25

Description

When specifying the cloud options (-DzkRun -DnumShards=n) in solr startup parameters, solr search does not consider any PostFilters.
For example, I have implemented a PostFilter and wrapped that in my QParserPlugin sub class. Then in the solr query I am using fq to apply post filtering by specifying fq=

{!pf1}

where pf1 is the name of my QParserPlugin. This all works well in solr and not in solr cloud.
I debugged and figured out that org.apache.solr.search.Grouping.execute() method is called by the non cloud instance. This considers pf.PostFilter which is the collection of all PostFilters whereas org.apache.solr.search.grouping.CommandHandler.execute() which is called by the solr cloud instance ignores the pf.PostFilter.