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From "Robert Muir (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (SOLR-3142) remove O(n^2) slow slow indexing defaults in DataImportHandler
Date Sun, 19 Feb 2012 14:36:34 GMT
remove O(n^2) slow slow indexing defaults in DataImportHandler
--------------------------------------------------------------

                 Key: SOLR-3142
                 URL: https://issues.apache.org/jira/browse/SOLR-3142
             Project: Solr
          Issue Type: Bug
            Reporter: Robert Muir
            Assignee: Robert Muir
             Fix For: 3.6, 4.0


By default, dataimporthandler optimizes the entire index when it commits.

This is bad for performance, because it means by default its doing a very
heavy index-wide operation even for an incremental update... essentially 
O(n^2) indexing.

All that is needed is to set optimize=false by default. If someone wants
to optimize, they can either set optimize=true or explicitly optimize themselves.


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