[SOLR-14520] json.facets: allBucket:true can cause server errors when combined with refine:true

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 8.6, 9.0
• Component/s: Facet Module
• Assignee: Chris M. Hostetter
• Reporter: Chris M. Hostetter
• Created: 28/May/20 01:17
• Updated: 15/Jul/20 15:09
• Resolved: 03/Jun/20 17:34

Description

Another bug that was discovered while testing SOLR-14467...
In some situations, using allBuckets:true in conjunction with refine:true can cause server errors during the "refinement" requests to the individual shards – either NullPointerExceptions from some (nested) SlotAccs when SpecialSlotAcc tries to collect them, or ArrayIndexOutOfBoundsException from CountSlotArrAcc.incrementCount because it's asked to collect to "large" slot# values even though it's been initialized with a size of '1'

NOTE: these problems may be specific to FacetFieldProcessorByArrayDV - i have not yet seen similar failures from FacetFieldProcessorByArrayUIF (those are the only 2 used when doing refinement) but that may just be a fluke of testing.

Issue Links

• is related to: SOLR-14467 json.facet's relatedness() should not cause server errors or nonsense results when combined with allBuckets:true