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From Doğacan Güney (JIRA) <>
Subject [jira] Updated: (NUTCH-882) Design a Host table in GORA
Date Tue, 28 Sep 2010 14:34:49 GMT


Doğacan Güney updated NUTCH-882:

    Attachment: hostdb.patch

Here is an initial version. This doesn't have a bloom filter due to reasons I outlined in
my previous comment. It adds a NutchContext object and adds NutchContext to a single method
in ScoringFilters to demonstrate how it will look. I made a random change in OPICScoringFilter
to demonstrate example usage.

> Design a Host table in GORA
> ---------------------------
>                 Key: NUTCH-882
>                 URL:
>             Project: Nutch
>          Issue Type: New Feature
>    Affects Versions: 2.0
>            Reporter: Julien Nioche
>            Assignee: Julien Nioche
>             Fix For: 2.0
>         Attachments: hostdb.patch, NUTCH-882-v1.patch
> Having a separate GORA table for storing information about hosts (and domains?) would
be very useful for : 
> * customising the behaviour of the fetching on a host basis e.g. number of threads, min
time between threads etc...
> * storing stats
> * keeping metadata and possibly propagate them to the webpages 
> * keeping a copy of the robots.txt and possibly use that later to filter the webtable
> * store sitemaps files and update the webtable accordingly
> I'll try to come up with a GORA schema for such a host table but any comments are of
course already welcome 

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