[jira] [Updated] (SOLR-8251) MatchAllDocsQuery is much slower in solr5.3.1 compare to solr4.7

["Uwe Schindler (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SOLR-8251?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Uwe Schindler updated SOLR-8251:
--------------------------------
    Fix Version/s: 5.5

> MatchAllDocsQuery is much slower in solr5.3.1 compare to solr4.7
> ----------------------------------------------------------------
>
>                 Key: SOLR-8251
>                 URL: https://issues.apache.org/jira/browse/SOLR-8251
>             Project: Solr
>          Issue Type: Bug
>          Components: search
>    Affects Versions: 5.3, 5.3.1
>            Reporter: wei shen
>             Fix For: 5.5
>
>
> I am trying to upgrade our production solr instance from 4.7 to 5.3.1. Unfortunately when I do load testing I find the MatchAllDocsQuery is much slower in solr 5.3.1 compare to 4.7. (solr 5.3.1 is faster in load test with queries other than MatchAllDocsQuery). I asked solr-user and discussed with Yonik Seeley. He confirmed that he can see the problem too comparing solr 5.3.1 and 4.10.
> here is the query I use:
> {code}
> q={!cache=false}*:*&fq=+categoryIdsPath:1001&fl=id&start=0&rows=2&debug=true
> {code}
> for me the query is consistently about 60-70% slower on solr5 than solr4.
> Yonik mentioned in his email "For me, 5.3.1
> is about 5x slower than 4.10 for this particular query."



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