Problem with faceting

[david . davila]

Hello,

we have been using faceting for a long time, but now I have discovered a 
problem that I can't understand:

the issue is that in a query with 2 results, in some facet values Solr is 
answering that there are 4 results. But faceting only applies over the 
result documents, therefore I think that this makes no sense.

This is the query:


  "responseHeader": {
    "status": 0,
    "QTime": 330,
    "params": {
      "facet": "true",
      "fl": "ID_bent",
      "indent": "true",
      "q": "aitana",
      "_": "1423207958751",
      "facet.field": "ID_bent",
      "wt": "json",
      "fq": "ee_Procedimiento:ZZ12 AND ee_Referencia:\"CURSO\" AND 
doc_FormatoDocumento:PDF"
    }
  },
  "response": {
    "numFound": 2,
    "start": 0,
    "maxScore": 0.17735688,
    "docs": [
      {
        "ID_bent": "#77762702P#77762953Y#77768200D#77763320M#77760725D#"
      },
      {
        "ID_bent": 
"#77760631F#77766156N#77760725D#77762702P#77765788N#48991207P#77762953Y#77760302T#12312312K#89890001K#77768200D#89890003T#11111111H#77763453T#99999999R#00020080J#Y4332393N#04889446Z#12345655Z#77763320M#11100336Z#Y4222970X#"
      }
    ]
  },
  "facet_counts": {
    "facet_queries": {},
    "facet_fields": {
      "ID_bent": [
        "77760725D",
        4,
        "77762702P",
        4,
        "77762953Y",
        4,
        "77763320M",
        4,
        "77768200D",
        4,
        "00000336Z",
        2,
        "00020000J",
        2,
        "04889446Z",
        2,
        "11111111H",
        2,
        "12312312K",
        2,
        "12345655Z",
        2,
        "48261207P",
        2,
        "77760302T",
        2,
        "77760631F",
        2,
        "77763453T",
        2,
        "77765788N",
        2,


We are using Solr 4.7 in cloud configuration with 2 shards.  Any idea what 
it is happening?

Thanks in advance,

David Dávila Atienza
AEAT - Departamento de Informática Tributaria
Subdirección de Tecnologías de Análisis de la Información e Investigación 
del Fraude