[jira] [Updated] (SOLR-9981) Multiple analytics fixes/performance improvements

["Houston Putman (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SOLR-9981?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Houston Putman updated SOLR-9981:
---------------------------------
    Attachment: SOLR-9983.patch

> Multiple analytics fixes/performance improvements
> -------------------------------------------------
>
>                 Key: SOLR-9981
>                 URL: https://issues.apache.org/jira/browse/SOLR-9981
>             Project: Solr
>          Issue Type: Improvement
>      Security Level: Public(Default Security Level. Issues are Public) 
>    Affects Versions: 6.3
>            Reporter: Houston Putman
>            Priority: Minor
>              Labels: patch
>         Attachments: SOLR-9983.patch
>
>
> Included are the following improvements/fixes:
> * Improving the unit test case.
> * Performance fix that stops the reading of ALL lucene segments over and again for each stats collector.
> ** The AtomicReaderContext that refers to the "current " segment is reused.
> ** This fix shows an improvement of about 25% in query time for a dataset of ~10M (=9.8M) records.
> ** Given the nature of the fix, the improvement should get better as the dataset increases.
> * Fix for the NPE during comparison



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