[jira] [Created] (SOLR-6722) Distributed function query sumtotaltermfreq does not return correct aggregated result

["Jessica Cheng Mallet (JIRA)" <ji...@apache.org>]

Jessica Cheng Mallet created SOLR-6722:
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             Summary: Distributed function query sumtotaltermfreq does not return correct aggregated result
                 Key: SOLR-6722
                 URL: https://issues.apache.org/jira/browse/SOLR-6722
             Project: Solr
          Issue Type: Bug
            Reporter: Jessica Cheng Mallet


The relevancy function query sumtotaltermfreq uses maxScore to return its result. However, in distributed mode, "max" is the incorrect aggregation function for sumtotaltermfreq. Instead, the "sum" should be returned.

For example, in the following break-down of 3 shards, we expect the sumtotaltermfreq to be 1802.0 + 1693.0 + 1693.0, but instead the overall query returns a maxScore of 1802.0, which is the max but not the answer we want, and the sum is not returned anywhere.

{
  "responseHeader":{
    "status":0,
    "QTime":4,
    "params":{
      "debugQuery":"true)",
      "indent":"true",
      "q":"sumtotaltermfreq(field1)",
      "wt":"json",
      "rows":"0",
      "defType":"func"}},
  "response":{"numFound”:477,”start":0,"maxScore":1802.0,"docs":[]
  },
  "debug":{
    "track":{
      "rid":"-collection1_shard1_replica1-1415238629909-9",
      "EXECUTE_QUERY":[
        "http://<host1 ip>:8983/solr/collection1_shard2_replica1/|http://<host2 ip>:8984/solr/collection1_shard2_replica2/",[
          "QTime","1",
          "ElapsedTime","2",
          "RequestPurpose","GET_TOP_IDS",
          "NumFound","165",
          "Response","{responseHeader={status=0,QTime=1,params={distrib=false,debug=track,wt=javabin,requestPurpose=GET_TOP_IDS,version=2,rows=0,defType=func,NOW=1415238629908,shard.url=http://<host1 ip>:8983/solr/collection1_shard2_replica1/|http://<host2 ip>:8984/solr/collection1_shard2_replica2/,df=text,debugQuery=false,fl=uuid,score,rid=-collection1_shard1_replica1-1415238629909-9,start=0,q=sumtotaltermfreq(field1),isShard=true,fsv=true}},response={numFound=165,start=0,maxScore=1802.0,docs=[]},sort_values={},debug={}}"],
        "http://<host2 ip>:8985/solr/collection1_shard1_replica1/|http://<host1 ip>:8986/solr/collection1_shard1_replica2/",[
          "QTime","0",
          "ElapsedTime","2",
          "RequestPurpose","GET_TOP_IDS",
          "NumFound","145",
          "Response","{responseHeader={status=0,QTime=0,params={distrib=false,debug=track,wt=javabin,requestPurpose=GET_TOP_IDS,version=2,rows=0,defType=func,NOW=1415238629908,shard.url=http://<host2 ip>:8985/solr/collection1_shard1_replica1/|http://<host1 ip>:8986/solr/collection1_shard1_replica2/,df=text,debugQuery=false,fl=uuid,score,rid=-collection1_shard1_replica1-1415238629909-9,start=0,q=sumtotaltermfreq(field1),isShard=true,fsv=true}},response={numFound=145,start=0,maxScore=1693.0,docs=[]},sort_values={},debug={}}"],
        "http://<host2 ip>:8988/solr/collection1_shard3_replica1/|http://<host1 ip>:8987/solr/collection1_shard3_replica2/",[
          "QTime","0",
          "ElapsedTime","2",
          "RequestPurpose","GET_TOP_IDS",
          "NumFound","167",
          "Response","{responseHeader={status=0,QTime=0,params={distrib=false,debug=track,wt=javabin,requestPurpose=GET_TOP_IDS,version=2,rows=0,defType=func,NOW=1415238629908,shard.url=http://<host2 ip>:8988/solr/collection1_shard3_replica1/|http://<host1 ip>:8987/solr/collection1_shard3_replica2/,df=text,debugQuery=false,fl=uuid,score,rid=-collection1_shard1_replica1-1415238629909-9,start=0,q=sumtotaltermfreq(field1),isShard=true,fsv=true}},response={numFound=167,start=0,maxScore=1693.0,docs=[]},sort_values={},debug={}}"]]},
    "explain":{}}}



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