[jira] [Commented] (NUTCH-1090) LinkDb (invertlinks) should inform the user when it ignores internal links

["Markus Jelsma (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/NUTCH-1090?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13090257#comment-13090257 ] 

Markus Jelsma commented on NUTCH-1090:
--------------------------------------

You can patch o.a.n.crawl.LinkDB.configure() to log this information.

> LinkDb (invertlinks) should inform the user when it ignores internal links
> --------------------------------------------------------------------------
>
>                 Key: NUTCH-1090
>                 URL: https://issues.apache.org/jira/browse/NUTCH-1090
>             Project: Nutch
>          Issue Type: Improvement
>          Components: linkdb
>    Affects Versions: 1.3
>            Reporter: Marek Bachmann
>            Priority: Trivial
>              Labels: configuration, information, log
>             Fix For: 1.3
>
>         Attachments: LinkDb.patch
>
>
> I used nutch to crawl sites on a single domain. After the crawl was complete I tried to build a LinkDb. The LinkDb was empty. 
> It comes up that this happens because the invertlinks command ignores internal links to the same domain by default. 
> Unfortunately the LinkDb class doesn't tell anything about that. So it was hard to find out why the LinkDb was empty. 
> I suggest to add an information for the user when the invertlinks command is ignoring internal links.

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