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Posted to dev@nutch.apache.org by "Doğacan Güney (JIRA)" <ji...@apache.org> on 2009/09/08 15:16:57 UTC
[jira] Closed: (NUTCH-702) Lazy Instanciation of Metadata in
CrawlDatum
[ https://issues.apache.org/jira/browse/NUTCH-702?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Doğacan Güney closed NUTCH-702.
-------------------------------
Resolution: Fixed
Fix Version/s: 1.1
Committed.
Thanks for the patch, Julien.
> Lazy Instanciation of Metadata in CrawlDatum
> --------------------------------------------
>
> Key: NUTCH-702
> URL: https://issues.apache.org/jira/browse/NUTCH-702
> Project: Nutch
> Issue Type: Improvement
> Affects Versions: 1.0.0
> Reporter: Julien Nioche
> Fix For: 1.1
>
> Attachments: NUTCH-702.patch, NUTCH-702.patch.v2, NUTCH-702v3.patch
>
>
> CrawlDatum systematically instanciates its metadata, which is quite wasteful especially in the case of CrawlDBReducer when it generates a new CrawlDatum for each incoming link before storing it in a List.
> Initial testing on the lazy instanciation shows an improvement in both speed and memory consumption. I will generate a patch for it ASAP
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