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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 Sat, 10 Feb 2007 08:13:05 GMT

    [ https://issues.apache.org/jira/browse/NUTCH-444?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12471967
] 

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

Well, Lets try this again in terms of feedparser. 

I completely disagree that a dormant project which doesn't support newer protocol nor shown
any activity for the last 12 months is not a reason for change. Let us just focus on the publicly
available stats from syndic8.com (They don't have all the feed but they have enough data to
get  the big picture)

http://www.syndic8.com/stats.php?Section=feeds#tabtable

Total Feeds:	 	495,614
Atom Feeds:	 	84,746
RSS Feeds:	 	397,565

Roughly 20-25% of the feed are Atom feed. So "Nutch default installation" misses 25% of the
"feed web". Imagine having a search engine site that can only do HTML 3.0 and nothing more
cos the project who developed the great HTML 3.0 lib is not active. Now you say well thats
HTML its a different issue.

Well, blogs and feeds are growing on trees and we can't afford to miss 25% of the blogs/feeds

So is that a good reason to still stick with commons feedparser? 

Cheers

> 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.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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