[jira] Commented: (SOLR-773) Incorporate Local Lucene/Solr

["Chris Male (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SOLR-773?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12741258#action_12741258 ] 

Chris Male commented on SOLR-773:
---------------------------------

>From my experience more than just a FunctionQuery is required for LocalSolr to be efficient.  Without the Cartesian tier information that is added by the UpdateProcessor, you will have to calculate the distance for every single document in our index.  The great circle distance calculations are actually quite expensive and when multiplied by say 1 million documents, the query time will become around 2 or 3 seconds.  If you then repeat the calculation again for sorting on distance, then the time will be even worse.  Therefore it seems necessary to include some way to reduce the number of distance calculations that are done.

> Incorporate Local Lucene/Solr
> -----------------------------
>
>                 Key: SOLR-773
>                 URL: https://issues.apache.org/jira/browse/SOLR-773
>             Project: Solr
>          Issue Type: New Feature
>            Reporter: Grant Ingersoll
>            Assignee: Grant Ingersoll
>            Priority: Minor
>         Attachments: exampleSpatial.zip, lucene-spatial-2.9-dev.jar, lucene.tar.gz, SOLR-773-local-lucene.patch, SOLR-773-local-lucene.patch, SOLR-773-local-lucene.patch, SOLR-773-local-lucene.patch, SOLR-773-local-lucene.patch, SOLR-773-spatial_solr.patch, SOLR-773.patch, SOLR-773.patch, spatial-solr.tar.gz
>
>
> Local Lucene has been donated to the Lucene project.  It has some Solr components, but we should evaluate how best to incorporate it into Solr.
> See http://lucene.markmail.org/message/orzro22sqdj3wows?q=LocalLucene

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