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From "Hoss Man (Commented) (JIRA)" <>
Subject [jira] [Commented] (SOLR-3142) remove O(n^2) slow slow indexing defaults in DataImportHandler
Date Tue, 21 Feb 2012 17:38:34 GMT


Hoss Man commented on SOLR-3142:

agreed, was just noting why i _think_ the original default was true..
> remove O(n^2) slow slow indexing defaults in DataImportHandler
> --------------------------------------------------------------
>                 Key: SOLR-3142
>                 URL:
>             Project: Solr
>          Issue Type: Bug
>            Reporter: Robert Muir
>            Assignee: Robert Muir
>             Fix For: 3.6, 4.0
>         Attachments: SOLR-3142.patch
> 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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