记录solr的一些参数配置

在schema.xml 文件中的配置，老是会忘记一些参数的作用，所以得记到博客里，就像一位同事所说，好记性不好烂博客。

 

 

                       multipartUploadLimitInKB="2048000" />

配置是否允许远程访问solr的配置文件，比如http://localhost:8080/solr/admin/file?file=schema.xml或者solrconfig.xml

如果设置false，则访问不到。。

 

 

 

 

其中omitnorms这个和文档长短有关

 

搜索时使用的参数的一些作用

 

bf是文档的boost（可以在作索引的时候设置也可以在搜索的时候动态计算 ）

 

qf 字段的权重评分（可以在作索引的时候设置也可以在搜索的时候动态计算 ）,qf只能在dismax方式下有效

 

 

mm 命中多少个term 返回结果

 

再续。。。。

 

使用dismax搜索组件：

http://localhost:8080/solr/select/?q=美女&q.op=AND&start=0&rows=20&fl=*&qt=dismax&bf=sum(recip(rord(public_time),1,56,7),recip(rord(public_time),1,112,14),recip(rord(public_time),1,180,30),recip(rord(public_time),1,720,180),recip(rord(public_time),1,720,360))^7+div(log(times),log(4))^30+map(hd,1,1,15,0)^4+div(log(totaltime),log(4))^30&qf=Subject^1+tag^0.3

 

其中默认搜索是text (test=Subject+tag)，所以q=美女，等于搜索text:美女，但是由于后面有加个参数qf=Subject^1+tag^0.3 ,所以搜索 的是Subject:美女 OR tag:美女,且每个字段都增加相应的权重

 

 

下面是调试文档boost 和字段的boost

 

on
on
0
Subject:mm OR tag:mm
2.2
10


−

−

mm
15
−

mm


−

mm
13
−

love you haha


−

love you haha
14
−

mm




−


13.277615 = (MATCH) sum of:
  12.204243 = (MATCH) weight(Subject:mm in 0), product of:
    0.78980696 = queryWeight(Subject:mm), product of:
      1.287682 = idf(docFreq=2, maxDocs=4)
      0.6133556 = queryNorm
    15.452185 = (MATCH) fieldWeight(Subject:mm in 0), product of:
      1.0 = tf(termFreq(Subject:mm)=1)
      1.287682 = idf(docFreq=2, maxDocs=4)
      12.0 = fieldNorm(field=Subject, doc=0)
  1.0733722 = (MATCH) weight(tag:mm in 0), product of:
    0.6133556 = queryWeight(tag:mm), product of:
      1.0 = idf(docFreq=3, maxDocs=4)
      0.6133556 = queryNorm
    1.75 = (MATCH) fieldWeight(tag:mm in 0), product of:
      1.0 = tf(termFreq(tag:mm)=1)
      1.0 = idf(docFreq=3, maxDocs=4)
      1.75 = fieldNorm(field=tag, doc=0)

−


6.1021214 = (MATCH) product of:
  12.204243 = (MATCH) sum of:
    12.204243 = (MATCH) weight(Subject:mm in 0), product of:
      0.78980696 = queryWeight(Subject:mm), product of:
        1.287682 = idf(docFreq=2, maxDocs=4)
        0.6133556 = queryNorm
      15.452185 = (MATCH) fieldWeight(Subject:mm in 0), product of:
        1.0 = tf(termFreq(Subject:mm)=1)
        1.287682 = idf(docFreq=2, maxDocs=4)
        12.0 = fieldNorm(field=Subject, doc=0)
  0.5 = coord(1/2)

−


0.5366861 = (MATCH) product of:
  1.0733722 = (MATCH) sum of:
    1.0733722 = (MATCH) weight(tag:mm in 1), product of:
      0.6133556 = queryWeight(tag:mm), product of:
        1.0 = idf(docFreq=3, maxDocs=4)
        0.6133556 = queryNorm
      1.75 = (MATCH) fieldWeight(tag:mm in 1), product of:
        1.0 = tf(termFreq(tag:mm)=1)
        1.0 = idf(docFreq=3, maxDocs=4)
        1.75 = fieldNorm(field=tag, doc=1)
  0.5 = coord(1/2)

 

其中这三个文档的boost在提交的时候都设置为6，Subject权重为2，tag权重为0.3,文档15在两个字段都命中，所以得分最高。

 

文档13命中Subject，14命中tag，所以评分文档13高于14.