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From "Markus Jelsma (JIRA)" <>
Subject [jira] [Commented] (NUTCH-1101) Options to purge db_gone records in updatedb
Date Tue, 06 Sep 2011 11:55:10 GMT


Markus Jelsma commented on NUTCH-1101:

Comments? I'd like to send this one in.

> Options to purge db_gone records in updatedb
> --------------------------------------------
>                 Key: NUTCH-1101
>                 URL:
>             Project: Nutch
>          Issue Type: New Feature
>          Components: linkdb
>    Affects Versions: 1.4
>            Reporter: Markus Jelsma
>            Assignee: Markus Jelsma
>             Fix For: 1.4
>         Attachments: NUTCH-1101-1.4-1.patch
> Add option to updatedb to filter out records with status db_gone (http 404). This is
especially useful in cases where a crawl db is targetted at only a specific site. If the site,
for some reason, suddenly changes a lot of url's we'll get a crawl db filled with garbage.
Since the targetted site is known (or controlled) it is safe to get rid of all these url's:
reduce db size, reduce useless http requests.

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