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From "Markus Jelsma (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (NUTCH-1101) Options to purge db_gone records in updatedb
Date Fri, 09 Sep 2011 11:18:08 GMT

     [ https://issues.apache.org/jira/browse/NUTCH-1101?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Markus Jelsma resolved NUTCH-1101.
----------------------------------

    Resolution: Fixed

Committed for 1.4 in rev.1167096.

> Options to purge db_gone records in updatedb
> --------------------------------------------
>
>                 Key: NUTCH-1101
>                 URL: https://issues.apache.org/jira/browse/NUTCH-1101
>             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, NUTCH-1101-1.4-2.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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