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https://issues.apache.org/jira/browse/NUTCH-1932?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16104748#comment-16104748
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Sebastian Nagel commented on NUTCH-1932:
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My suggestion would be to add a method {{orphanedScore(Text url, CrawlDatum
datum)}} to the ScoringFilter interface and add a do-nothing default
implementation to AbstractScoringFilter - this makes clear that the method is
called when there is no "new" datum from a fetch (successful or not) and no new
inlinks.
> Automatically remove orphaned pages
> -----------------------------------
>
> Key: NUTCH-1932
> URL: https://issues.apache.org/jira/browse/NUTCH-1932
> Project: Nutch
> Issue Type: New Feature
> Reporter: Markus Jelsma
> Assignee: Markus Jelsma
> Priority: Minor
> Attachments: NUTCH-1932-add.patch, NUTCH-1932.patch,
> NUTCH-1932.patch, NUTCH-1932.patch, NUTCH-1932.patch, NUTCH-1932.patch,
> NUTCH-1932.patch, NUTCH-1932.patch, NUTCH-1932.patch, NUTCH-1932.patch,
> NUTCH-1932.patch, NUTCH-1932.patch, NUTCH-1932.patch, NUTCH-1932.patch,
> NUTCH-1932.patch
>
>
> Orphan scoring filter that determines whether a page has become orphaned,
> e.g. it has no more other pages linking to it. If a page hasn't been linked
> to after markGoneAfter seconds, the page is marked as gone and is then
> removed by an indexer. If a page hasn't been linked to after markOrphanAfter
> seconds, the page is removed from the CrawlDB.
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