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From zhenyuan wei <tins...@gmail.com>
Subject Re: How long does a query?q=field1:2312 should cost? exactly hit one document.
Date Mon, 03 Sep 2018 13:01:39 GMT
Only a termQuery q=field1:2312, No other conditions.
I try debug now, but can not find out  what is the main cost.
Debug=timing output like :

{
  "responseHeader":{
    "zkConnected":true,
    "status":0,
    "QTime":157,
    "params":{
      "q":"v00_s:15de21c670ae7c3f6f3f1f37029303c9",
      "debug":"timing"}},
  "response":{"numFound":1,"start":0,"maxScore":17.099754,"docs":[
      {
        "v00_s":"15de21c670ae7c3f6f3f1f37029303c9",
        "v01_s":"7596295605015",
        "v02_s":"Mp9XkmrRXhFChgMAGoydOvAD",
        "v03_l":555,
        "v04_s":"55",
        "v05_s":"39994237071313698949",
        "v06_s":"3",
        "v07_s":"155",
        "v08_s":"5",
        "v09_s":"15",
        "v10_s":"15",
        "v11_s":"555",
        "v12_s":"43819292",
        "v13_s":"549754428",
        "v14_s":"8111596961",
        "id":"00000000000000000000000555",
        "_version_":1610106981630083079}]
  },
  "debug":{
    "timing":{
      "time":6336.0,
      "prepare":{
        "time":8.0,
        "query":{
          "time":8.0},
        "facet":{
          "time":0.0},
        "facet_module":{
          "time":0.0},
        "mlt":{
          "time":0.0},
        "highlight":{
          "time":0.0},
        "stats":{
          "time":0.0},
        "expand":{
          "time":0.0},
        "terms":{
          "time":0.0},
        "debug":{
          "time":0.0}},
      "process":{
        "time":6270.0,
        "query":{
          "time":6268.0,
          "doProcessSearchByIds":{
            "time":0.0},
          "doProcessUngroupedSearch":{
            "time":6265.0,
            "search":{
              "time":6261.0,
              "getDocListC":{
                "time":6261.0,
                "lookup_queryResultCache":{
                  "time":0.0},
                "lookupNotuseFilterCacheTimer":{
                  "time":6258.0},
                "getDocListNCTimer":{
                  "time":6258.0,
                  "getProcessedFilter":{
                    "time":0.0},
                  "buildAndRunCollectorChain2":{
                    "time":6255.0},
                  "topDocs":{
                    "time":0.0}}}},
            "doFieldSortValues":{
              "time":0.0},
            "doPrefetch":{
              "time":0.0}}},
        "facet":{
          "time":0.0},
        "facet_module":{
          "time":0.0},
        "mlt":{
          "time":0.0},
        "highlight":{
          "time":0.0},
        "stats":{
          "time":0.0},
        "expand":{
          "time":0.0},
        "terms":{
          "time":0.0},
        "debug":{
          "time":0.0}}}}}


My request is :  curl "
http://emr-worker-2:8983/solr/collection001/query?q=v00_s:
15de21c670ae7c3f6f3f1f37029303c9&debug=timing"

I  also hope to using debug=true to find out more things,so I added some
sub timer to trace which sub method is slowly.
And found , as above,  the "SolrIndexSearch.buildAndRunCollectorChain() "
cost a lot。
( if I want to  find out the answer, I think I have not idea but  debug
tracing  to deeper into lucene level method.)

*At this moment, I have another question too, why  debug time is 6336.0,
which less than QTime=157 ? *
















Erik Hatcher <erik.hatcher@gmail.com> 于2018年9月3日周一 下午8:30写道:

> Add debug=true and see where the time goes, in which components?
>
> Highlighting is my culprit guess.   Or faceting?
>
> > On Sep 3, 2018, at 07:45, zhenyuan wei <tinswzy@gmail.com> wrote:
> >
> > Hi ,
> >   I am curious “How long does a  query q=field1:2312 cost ,   which
> > exactly match only one document? ”,  Of course we just discuss  no
> > queryResultCache with match in this situation.
> >   In fact  my QTime is  150ms+, it is too long.
>

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