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Posted to dev@jackrabbit.apache.org by "Ard Schrijvers (JIRA)" <ji...@apache.org> on 2009/09/18 10:26:57 UTC

[jira] Created: (JCR-2311) Improve indexing performance by reusing already create Lucene Documents within a single indexing transaction

Improve indexing performance by reusing already create Lucene Documents within a single indexing transaction
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                 Key: JCR-2311
                 URL: https://issues.apache.org/jira/browse/JCR-2311
             Project: Jackrabbit Content Repository
          Issue Type: Improvement
          Components: indexing
    Affects Versions: 2.0-alpha9, 1.6.0, 1.5.7
            Reporter: Ard Schrijvers
            Assignee: Ard Schrijvers
            Priority: Minor
             Fix For: 1.5.8, 1.6.1, 2.0-alpha11


When using indexing aggregates, it can become very expensive when for example binary data like pdfs are involved. Within a single MultiIndex transaction, we should be save to reuse the created Lucene Document's. This is useful for aggregates, as this might currently involve reindexing the same node multiple times now in a single transaction. 

In the mail discussion below I describe to use WeakReferences, though I think SoftReferences are in this case better suited (we do not want the created lucene docs to be gc-ed, unless memory gets low...)

Also see http://www.nabble.com/Improve-indexing-performance-wrt-Aggregates-td25471828.html


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[jira] Updated: (JCR-2311) Improve indexing performance by reusing already create Lucene Documents within a single indexing transaction

Posted by "Ard Schrijvers (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/JCR-2311?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ard Schrijvers updated JCR-2311:
--------------------------------

    Affects Version/s:     (was: 2.0-alpha9)
                           (was: 1.5.7)
                           (was: 1.6.0)
        Fix Version/s:     (was: 1.5.8)
                           (was: 2.0-alpha11)
                           (was: 1.6.1)

> Improve indexing performance by reusing already create Lucene Documents within a single indexing transaction
> ------------------------------------------------------------------------------------------------------------
>
>                 Key: JCR-2311
>                 URL: https://issues.apache.org/jira/browse/JCR-2311
>             Project: Jackrabbit Content Repository
>          Issue Type: Improvement
>          Components: indexing
>            Reporter: Ard Schrijvers
>            Assignee: Ard Schrijvers
>            Priority: Minor
>
> When using indexing aggregates, it can become very expensive when for example binary data like pdfs are involved. Within a single MultiIndex transaction, we should be save to reuse the created Lucene Document's. This is useful for aggregates, as this might currently involve reindexing the same node multiple times now in a single transaction. 
> In the mail discussion below I describe to use WeakReferences, though I think SoftReferences are in this case better suited (we do not want the created lucene docs to be gc-ed, unless memory gets low...)
> Also see http://www.nabble.com/Improve-indexing-performance-wrt-Aggregates-td25471828.html

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