[jira] Commented: (NUTCH-731) Redirection of robots.txt in RobotRulesParser

["Andrzej Bialecki (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/NUTCH-731?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12764009#action_12764009 ] 

Andrzej Bialecki  commented on NUTCH-731:
-----------------------------------------

Fixed in rev. 823540 - I applied a slightly modified version of the patch, to account for common errors in redirects. Thank you!

> Redirection of robots.txt in RobotRulesParser
> ---------------------------------------------
>
>                 Key: NUTCH-731
>                 URL: https://issues.apache.org/jira/browse/NUTCH-731
>             Project: Nutch
>          Issue Type: Improvement
>          Components: fetcher
>    Affects Versions: 1.0.0
>            Reporter: Julien Nioche
>            Assignee: Andrzej Bialecki 
>             Fix For: 1.1
>
>         Attachments: NUTCH-731.patch
>
>
> The patch attached allows to follow one level of redirection for robots.txt files. A similar issue was mentioned in NUTCH-124 and has been marked as fixed a long time ago but the problem remained, at least when using Fetcher2 . Mathijs Homminga pointed to the problem in a mail to the nutch-dev list in March.
> I have been using this patch for a while now on a large cluster and noticed that the ratio of robots_denied per fetchlist went up, meaning that at least we are now getting restrictions we would not have had before (and getting less complaints from webmasters at the same time)

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