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https://issues.apache.org/jira/browse/NUTCH-1483?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14176111#comment-14176111
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Sebastian Nagel commented on NUTCH-1483:
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You'll get it working if
(1) the above mentioned rule in {{regex-normalize.xml}} is removed or
urlnormalizer-regex is deactivated, and
(2) seed URLs are given with only one slash after the protocol:
{{file:/var/www/test.html}} (cf.
[1|http://amac4.blogspot.co.uk/2013/07/setting-up-nutch-to-crawl-filesystem.html])
(about 1) The rule cleansing repeated slashes makes sense, in general. To allow
2 slashes after a colon ':' is not enough because after "file:" there may be 3
slashes. Maybe we can formulate the normalization rule more restrictive. The
default rules should work out-of-the-box for any protocol!
(about 2) Somehow duplicates slip into crawldb if seeds are given with multiple
slashes: {{file:///path/test.html}} also adds during inject
{{file:/path/test.html}}.
> Can't crawl filesystem with protocol-file plugin
> ------------------------------------------------
>
> Key: NUTCH-1483
> URL: https://issues.apache.org/jira/browse/NUTCH-1483
> Project: Nutch
> Issue Type: Bug
> Components: protocol
> Affects Versions: 1.6, 2.1
> Environment: OpenSUSE 12.1, OpenJDK 1.6.0, HBase 0.90.4
> Reporter: Rogério Pereira Araújo
> Priority: Critical
> Fix For: 1.10
>
> Attachments: NUTCH-1483.patch
>
>
> I tried to follow the same steps described in this wiki page:
> http://wiki.apache.org/nutch/IntranetDocumentSearch
> I made all required changes on regex-urlfilter.txt and added the following
> entry in my seed file:
> file:///home/rogerio/Documents/
> The permissions are ok, I'm running nutch with the same user as folder owner,
> so nutch has all the required permissions, unfortunately I'm getting the
> following error:
> org.apache.nutch.protocol.file.FileError: File Error: 404
> at
> org.apache.nutch.protocol.file.File.getProtocolOutput(File.java:105)
> at
> org.apache.nutch.fetcher.FetcherReducer$FetcherThread.run(FetcherReducer.java:514)
> fetch of file://home/rogerio/Documents/ failed with:
> org.apache.nutch.protocol.file.FileError: File Error: 404
> Why the logs are showing file://home/rogerio/Documents/ instead of
> file:///home/rogerio/Documents/ ???
> Note: The regex-urlfilter entry only works as expected if I add the entry
> +^file://home/rogerio/Documents/ instead of +^file:///home/rogerio/Documents/
> as wiki says.
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