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https://issues.apache.org/jira/browse/NUTCH-1666?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13818817#comment-13818817
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Markus Jelsma commented on NUTCH-1666:
--------------------------------------
+1
> Optimisation for BasicURLNormalizer
> -----------------------------------
>
> Key: NUTCH-1666
> URL: https://issues.apache.org/jira/browse/NUTCH-1666
> Project: Nutch
> Issue Type: Improvement
> Affects Versions: 1.7
> Reporter: Julien Nioche
> Priority: Minor
> Fix For: 1.8
>
> Attachments: NUTCH-1666.patch
>
>
> The regular expressions in the BasicURLNormalizer are quite costly, the patch
> attached allows to skip the processing if a URL does not contain a sequence
> of interest (two slashes with zero, one or two dots in between).
> This reduces the time spent in post processing the parsing quite a bit.
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