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Posted to dev@lucene.apache.org by "Stanislav Livotov (JIRA)" <ji...@apache.org> on 2018/11/01 09:42:00 UTC

[jira] [Commented] (SOLR-12699) make LTRScoringModel immutable (to allow hashCode caching)

    [ https://issues.apache.org/jira/browse/SOLR-12699?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16671361#comment-16671361 ] 

Stanislav Livotov commented on SOLR-12699:
------------------------------------------

Hi [~cpoerschke], I took a look at your patch and I don't have any concerns from my side. And thank you one more time for helping with that! 

> make LTRScoringModel immutable (to allow hashCode caching)
> ----------------------------------------------------------
>
>                 Key: SOLR-12699
>                 URL: https://issues.apache.org/jira/browse/SOLR-12699
>             Project: Solr
>          Issue Type: Sub-task
>      Security Level: Public(Default Security Level. Issues are Public) 
>          Components: contrib - LTR
>            Reporter: Stanislav Livotov
>            Priority: Major
>         Attachments: SOLR-12699.patch, SOLR-12699.patch, SOLR-12699.patch, SOLR-12699.patch
>
>
> [~slivotov] wrote in SOLR-12688:
> bq. ... LTRScoringModel was a mutable object. It was leading to the calculation of hashcode on each query, which in turn can consume a lot of time ... So I decided to make LTRScoringModel immutable and cache hashCode calculation. ...
> (Please see SOLR-12688 description for overall context and analysis results.)



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