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From "Markus Jelsma (JIRA)" <>
Subject [jira] [Commented] (NUTCH-2335) Injector not to filter and normalize existing URLs in CrawlDb
Date Mon, 10 Apr 2017 12:14:41 GMT


Markus Jelsma commented on NUTCH-2335:

Sebastian, filtering and normalizing is still enabled by default yet in the description you
want to disable is by default. With this patch and no further configuration changes our injector
still filters everything.

> Injector not to filter and normalize existing URLs in CrawlDb
> -------------------------------------------------------------
>                 Key: NUTCH-2335
>                 URL:
>             Project: Nutch
>          Issue Type: Improvement
>          Components: crawldb, injector
>    Affects Versions: 1.12
>            Reporter: Sebastian Nagel
>            Assignee: Sebastian Nagel
>             Fix For: 1.14
> With NUTCH-1712 the behavior of the Injector has changed in case new URLs are added to
an existing CrawlDb:
> - before only injected URLs were filtered and normalized
> - now filters and normalizers are applied to all URLs including those already in the
> The default should be as before not to filter existing URLs. Filtering and normalizing
may take long for large CrawlDbs and/or complex URL filters. If URL filter or normalizer rules
are not changed there is no need to apply them anew every time new URLs are added. Of course,
injected URLs should be filtered and normalized by default.

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