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https://issues.apache.org/jira/browse/NUTCH-1288?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Julien Nioche resolved NUTCH-1288.
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Resolution: Invalid

This is not the right way to do. If you don't want to re-try such pages then
implement a custom fetch schedule - don't hack the AbstractFetchSchedule as you
do.
Hardcoding the schedule policy forces people to use Nutch the way you want to
use it, not a good idea. Moreover your patch removes useful information about
the status of a page to give a more generic (and dubious value).

> Generator should not generate filter and not found and denied and gone and
> permanently moved pages
> --------------------------------------------------------------------------------------------------
>
> Key: NUTCH-1288
> URL: https://issues.apache.org/jira/browse/NUTCH-1288
> Project: Nutch
> Issue Type: Bug
> Components: fetcher, generator
> Affects Versions: 1.4
> Reporter: behnam nikbakht
> Attachments: NUTCH-1288.patch
>
>
> Generator should not generate filter and not found and denied and gone and
> permanently moved pages.
> in the shouldFetch method in AbstractFetchSchedule, CrawlDatum must checked
> against special states of fetch like not found, and not generate them again.
> so we can add a status in CrawlDatum that indicates invalid urls, and set
> this status in fetch.

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