[SOLR-11334] UnifiedSolrHighlighter returns an error when hl.fl delimited by ", "

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 6.6
• Fix Version/s: 8.6
• Component/s: highlighter

Environment

Ubuntu 17.04 (GNU/Linux 4.10.0-33-generic x86_64)
Java HotSpot 64-Bit Server VM(build 25.114-b01, mixed mode)

• Assignee: David Smiley
• Reporter: Yasufumi Mizoguchi
• Created: 07/Sep/17 01:36
• Updated: 15/Jul/20 15:10
• Resolved: 03/Jun/20 03:00

Description

UnifiedSolrHighlighter(hl.method=unified) misjudge the zero-length string as a field name and returns an error when hl.fl delimited by ", "

request:

$ curl -XGET "http://localhost:8983/solr/techproducts/select?fl=name,%20manu&hl.fl=name,%20manu&hl.method=unified&hl=on&indent=on&q=corsair&wt=json"

response:

{
  "responseHeader":{
    "status":400,
    "QTime":8,
    "params":{
      "q":"corsair",
      "hl":"on",
      "indent":"on",
      "fl":"name, manu",
      "hl.fl":"name, manu",
      "hl.method":"unified",
      "wt":"json"}},
  "response":{"numFound":2,"start":0,"docs":[
      {
        "name":"CORSAIR ValueSelect 1GB 184-Pin DDR SDRAM Unbuffered DDR 400 (PC 3200) System Memory - Retail",
        "manu":"Corsair Microsystems Inc."},
      {
        "name":"CORSAIR  XMS 2GB (2 x 1GB) 184-Pin DDR SDRAM Unbuffered DDR 400 (PC 3200) Dual Channel Kit System Memory - Retail",
        "manu":"Corsair Microsystems Inc."}]
  },
  "error":{
    "metadata":[
      "error-class","org.apache.solr.common.SolrException",
      "root-error-class","org.apache.solr.common.SolrException"],
    "msg":"undefined field ",
    "code":400}}

DefaultHighlighter's response:

{
  "responseHeader":{
    "status":0,
    "QTime":5,
    "params":{
      "q":"corsair",
      "hl":"on",
      "indent":"on",
      "fl":"name, manu",
      "hl.fl":"name, manu",
      "hl.method":"original",
      "wt":"json"}},
  "response":{"numFound":2,"start":0,"docs":[
      {
        "name":"CORSAIR ValueSelect 1GB 184-Pin DDR SDRAM Unbuffered DDR 400 (PC 3200) System Memory - Retail",
        "manu":"Corsair Microsystems Inc."},
      {
        "name":"CORSAIR  XMS 2GB (2 x 1GB) 184-Pin DDR SDRAM Unbuffered DDR 400 (PC 3200) Dual Channel Kit System Memory - Retail",
        "manu":"Corsair Microsystems Inc."}]
  },
  "highlighting":{
    "VS1GB400C3":{
      "name":["<em>CORSAIR</em> ValueSelect 1GB 184-Pin DDR SDRAM Unbuffered DDR 400 (PC 3200) System Memory - Retail"],
      "manu":["<em>Corsair</em> Microsystems Inc."]},
    "TWINX2048-3200PRO":{
      "name":["<em>CORSAIR</em>  XMS 2GB (2 x 1GB) 184-Pin DDR SDRAM Unbuffered DDR 400 (PC 3200) Dual Channel Kit System"],
      "manu":["<em>Corsair</em> Microsystems Inc."]}}}

Issue Links

• links to: GitHub Pull Request #1531