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From "nutch.newbie (JIRA)" <j...@apache.org>
Subject [jira] Commented: (NUTCH-444) Possibly use a different library to parse RSS feed for improved performance and compatibility
Date Tue, 13 Feb 2007 09:44:05 GMT

    [ https://issues.apache.org/jira/browse/NUTCH-444?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12472596
] 

nutch.newbie commented on NUTCH-444:
------------------------------------

Hi Dogacan:

I have done some digging around Rome yesterday and it seems to me that rome treats RSS i.e
authors.getName differently then Atom authors.getName same goes for description, content and
category... i.e. some values are returned nill some throws a exception. Could this be a cos
of the problem.. cos all the CNN rss passed with flying colors .. http://www.cnn.com/services/rss/

Brain Storming here.. maybe its a good idea to chop the parser into two parser i.e. parser-feed
(link, title, content -- the needed basics) and parser-feedextra (everything else and more)
good idea? bad idea? I don't know.. just wondering .. My use case was those who are not making
a blog search could just use parser-feed to index basic stuff thus saving parsing and indexing
time. Those who are going for blog search will have both parser enables in nutch-site.xml..
Just some thoughts..

I will try to send you some problem URL directly via mail. 

Regards

> Possibly use a different library to parse RSS feed for improved performance and compatibility
> ---------------------------------------------------------------------------------------------
>
>                 Key: NUTCH-444
>                 URL: https://issues.apache.org/jira/browse/NUTCH-444
>             Project: Nutch
>          Issue Type: Improvement
>          Components: fetcher
>    Affects Versions: 0.9.0
>            Reporter: Renaud Richardet
>            Priority: Minor
>             Fix For: 0.9.0
>
>         Attachments: parse-feed-v2.tar.bz2, parse-feed.tar.bz2
>
>
> As discussed by Nutch Newbie, Gal, and Chris on NUTCH-443, the current library (feedparser)
has the following issues:
> - OutOfMemory when parsing > 100k feeds, since it has to convert the feed to jdom
first
> - no support for Atom 1.0
> - there has been no development in the last year
> Alternatives are:
> - Rome 
> - Informa
> - custom implementation based on Stax
> - ??

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