Crawling - File Error 404 when fetching file with an hexadecimal character in
the file name.
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Key: NUTCH-824
URL: https://issues.apache.org/jira/browse/NUTCH-824
Project: Nutch
Issue Type: Bug
Components: fetcher
Affects Versions: 1.0.0
Environment: Linux nube 2.6.31-20-server #58-Ubuntu SMP x86_64
GNU/Linux
Reporter: Michela Becchi
Priority: Blocker
Hello,
I am performing a local file system crawling.
My problem is the following: all files that contain some hexadecimal characters
in the name do not get crawled.
For example, I will see the following error:
fetching
file:/nutch-1.0/wikidump/wiki-en/en/articles/a/2E/m/A.M._%28album%29_8a09.html
org.apache.nutch.protocol.file.FileError: File Error: 404
at org.apache.nutch.protocol.file.File.getProtocolOutput(File.java:92)
at org.apache.nutch.fetcher.Fetcher$FetcherThread.run(Fetcher.java:535)
fetch of
file:/nutch-1.0/wikidump/wiki-en/en/articles/a/2E/m/A.M._%28album%29_8a09.html
failed with: org.apache.nutch.protocol.file.FileError: File Error: 404
I am using nutch-1.0.
Among other standard settings, I configured nutch-site.conf as follows:
<property>
<name>plugin.includes</name>
<value>protocol-file|protocol-http|urlfilter-regex|parse-(text|html|js|pdf)|index-(basic|anchor)|query-(basic|site|url)|response-(json|xml)|summary-basic|scoring-opic|urlnormalizer-(pass|regex|basic)</value>
<description>Regular expression naming plugin directory names to
include. Any plugin not matching this expression is excluded.
In any case you need at least include the nutch-extensionpoints plugin. By
default Nutch includes crawling just HTML and plain text via HTTP,
and basic indexing and search plugins. In order to use HTTPS please enable
protocol-httpclient, but be aware of possible intermittent problems with the
underlying commons-httpclient library.
</description>
</property>
<property>
<name>file.content.limit</name>
<value>-1</value>
</property>
Moreover, crawl-urlfilter.txt looks like:
# skip http:, ftp:, & mailto: urls
-^(http|ftp|mailto):
# skip image and other suffixes we can't yet parse
-\.(gif|GIF|jpg|JPG|png|PNG|ico|ICO|css|sit|eps|wmf|zip|ppt|mpg|xls|gz|rpm|tgz|mov|MOV|exe|jpeg|JPEG|bmp|BMP)$
# skip URLs containing certain characters as probable queries, etc.
-[...@=]
# skip URLs with slash-delimited segment that repeats 3+ times, to break loops
-.*(/[^/]+)/[^/]+\1/[^/]+\1/
# accept hosts in MY.DOMAIN.NAME
#+^http://([a-z0-9]*\.)*MY.DOMAIN.NAME/
# accept everything else
+.*
~
---
Thanks,
Michela
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