Hi, Nutch 1.3 currently has Tika 0.9 which is the latest official version. I was trying to replace the Tika in Nutch 1.3 with a Tika project which I had modifed (Tika 0.9 with a new parser I had created). Is it still recommended that I create a JIRA issue if it currently has the latest official version?
Thanks, Fernando On Tue, Jul 19, 2011 at 9:41 PM, Mattmann, Chris A (388J) < [email protected]> wrote: > Hey Fernando, > > Would be great to get a JIRA issue and patch to bring > Nutch 1.4-branch up to date with the latest Tika > based on your experience. > > Thanks for your help! > > Cheers, > Chris > > On Jul 19, 2011, at 4:48 PM, Fernando Arreola wrote: > > > Hi, > > > > You were right, it is enough to provide the right clues in the > > tika-mimetypes.xml file. Once the correct clues got in there, thanks to a > > Tika developer, all I had to do was replace the jar files with mine. It > is > > working just as I want it now. > > > > Thanks everyone for the help. > > > > Fernando > > > > On Wed, Jul 13, 2011 at 1:48 AM, Julien Nioche < > > [email protected]> wrote: > > > >> You probably need to make sure that conf/tika-mimetypes.xml is the > version > >> you've modified and contains the clues for detecting afm files. > >> BTW out of curiosity why did you have to modify tika-core.jar? Isn't it > >> enough to provide the clues in tika-mimetypes.xml? > >> > >> Jul > >> > >> On 13 July 2011 01:16, Fernando Arreola <[email protected]> wrote: > >> > >>> Thanks, I really appreciate all the help. I used the ParserChecker and > I > >>> could see the metadata my parser extracted! > >>> > >>> I have one more question though, I could only see the metadata my > parser > >>> extracted if I used the -forceAs mimetype option. Otherwise it is > >> detected > >>> as a text/plain file and my parser is then not called. I ran into a > >> similar > >>> problem in tika and added some functionality there so that Tika's > >> detection > >>> mechanism would not think afm files are text/plain. Does this mean not > >> all > >>> of my tika changes made it in (I updated both the tika-core.jar and > >>> tika-parsers.jar files) or does Nutch have its own file type detection > >>> mechanism? > >>> > >>> Thanks, > >>> Fernando > >>> > >>> On Tue, Jul 12, 2011 at 4:54 PM, Markus Jelsma > >>> <[email protected]>wrote: > >>> > >>>> > >>>>> Thanks for the help. I seem to be getting close to what I need to do, > >>> but > >>>>> not quite there. > >>>>> > >>>>> I downloaded Nutch 1.3 and built it on a unix machine. It built and > >> ran > >>>>> fine (before changing any jar files) when I tested it on the site > >> with > >>>> the > >>>>> .afm files that I want to get parsed. > >>>>> > >>>>> I then changed the tika-core.jar, tika-parsers.jar, nutch-site.xml > >> (to > >>>>> enable the parse-tika plugin) and tika-mimetypes.xml files with my > >>>> updated > >>>>> versions. I rebuilt (no errors) and then ran the crawl command on the > >>>> same > >>>>> site. The fetch seemed to work, I did not see any errors when running > >>> or > >>>> in > >>>>> the log file. There is a parse error but it is related to a pdf I > >> have > >>>>> linked in the site I crawled and since I am not interested in the pdf > >> I > >>>>> don't think it matters. > >>>>> > >>>>> Now here is my completely newb question: how can I tell if the afm > >>> files > >>>>> were parsed correctly in the absence of errors? > >>>> > >>>> The ParserChecker is what you're looking for. It's a handy tool you > can > >>>> locally use to find out if all goes well. > >>>> > >>>> bin/nutch org.apache.nutch.parse.ParserChecker > >>>> > >>>>> > >>>>> I looked at the files in the segments/*/parse_data directory (since > >>> that > >>>> is > >>>>> where the tutorial says the metadata goes and the parser I created > >>> mostly > >>>>> extracts metadata) but the files aren't really readable. I also > >> figured > >>>>> maybe I could search for some terms I expect parser to extract but > >>>> couldn't > >>>>> perform a search. When I typed the following command in the > >>> runtime/local > >>>>> directory: > >>>>> > >>>>> bin/nutch org.apache.nutch.searcher.NutchBean *search_term* > >>>>> > >>>>> I get the following error: > >>>>> > >>>>> Exception in thread "main" java.lang.NoClassDefFoundError: > >>>>> org/apache/nutch/searcher/NutchBean > >>>>> > >>>>> I looked in the src directory and did not find the searcher (it was > >> in > >>>>> there in the 1.2 version). I tried downloading both the binary and > >> the > >>>> src > >>>>> distributions for 1.3 and it was in neither. Is there a different way > >>> to > >>>>> perform a search in 1.3 or is there a different way I can see > >> readable > >>>>> results of the parsed information? > >>>> > >>>> There is no searcher in 1.3. It is deprecated and removed. Use Solr > for > >>>> indexing to confirm or use ParserChecker or the new 1.4-dev > >>>> o.a.n.indexer.IndexingFiltersChecker. > >>>> > >>>>> > >>>>> Thanks, > >>>>> Fernando > >>>>> > >>>>> On Tue, Jul 12, 2011 at 11:00 AM, lewis john mcgibbney < > >>>>> > >>>>> [email protected]> wrote: > >>>>>> OK so at least we seem to have sorted out the first of you're > >>>> problems... > >>>>>> but now face the dreaded Windows Cygwin partnership. > >>>>>> > >>>>>> We do not currently have an up-to-date tutorial for this. We do > >>> however > >>>>>> have > >>>>>> a tutorial for older versions of Nutch which you can find here [1] > >>> [2] > >>>>>> > >>>>>> I'm going to be brutally honest with you here, working with Cygwin > >>> was > >>>>>> horrible from my own experience. There seems to be so much overhead > >>> and > >>>>>> working with almost any other OS was a significantly easier option. > >> I > >>>>>> understand that this may mean a fundamental shift in you're > >> computing > >>>>>> style but the benefit is well worth it. > >>>>>> > >>>>>> [1] http://wiki.apache.org/nutch/GettingNutchRunningOnCygwin > >>>>>> [2] > >>>>>> > >>>>>> > >>>> > >>> > >> > http://wiki.apache.org/nutch/GettingNutchRunningWithWindows?highlight=%28 > >>>>>> cygwin%29 > >>>>>> > >>>>>> On Tue, Jul 12, 2011 at 6:23 PM, Fernando Arreola < > >>> [email protected] > >>>>>> > >>>>>>> wrote: > >>>>>>> Hello, > >>>>>>> > >>>>>>> Thanks for the replies. > >>>>>>> > >>>>>>> I have started trying to use Nutch 1.3 after your suggestions, > >>>>>>> especially since I am using Tika 0.9, but I am not getting > >> anywhere > >>>>>>> with it. I am > >>>>>> > >>>>>> able > >>>>>> > >>>>>>> to build fine but whenever I try to run any command it gives the > >>>> error > >>>>>>> stating that it cannot find C:\Program. For example, if I try to > >>> run > >>>>>>> the following command to crawl: > >>>>>>> > >>>>>>> runtime/local/bin/nutch crawl urls -dir crawl -depth 3 -topN 50 > >>>>>>> > >>>>>>> It then gives me the following error right away before any other > >>>>>>> output: > >>>>>>> > >>>>>>> runtime/local/bin/nutch: line 251: exec: C:\Program: not found > >>>>>>> > >>>>>>> I am running on Cygwin on Windows 7, if that helps. > >>>>>>> > >>>>>>> As for Tika, I did modify the CompositeDetector.java file in > >>>> tika-core > >>>>>>> since > >>>>>>> I added a Detector to detect the AFM files and had to make a > >> slight > >>>>>> > >>>>>> change > >>>>>> > >>>>>>> to the CompositeDetector. I did rebuild Nutch after I changed the > >>>> jars > >>>>>> > >>>>>> and > >>>>>> > >>>>>>> it built fine but that is when I started getting the fetch failed > >>>>>>> error. > >>>>>>> > >>>>>>> Thanks, > >>>>>>> Fernando > >>>>>>> > >>>>>>> On Tue, Jul 12, 2011 at 2:13 AM, Julien Nioche < > >>>>>>> > >>>>>>> [email protected]> wrote: > >>>>>>>> Hi Fernando > >>>>>>>> > >>>>>>>>> I have made some additions (a new parser) to the Apache Tika > >>>>>>> > >>>>>>> application > >>>>>>> > >>>>>>>>> and > >>>>>>>>> I am trying to see if I can run my new changes using the > >> crawl > >>>>>>> > >>>>>>> mechanism > >>>>>>> > >>>>>>>> in > >>>>>>>> > >>>>>>>>> Nutch, but I am having some trouble updating Nutch with my > >>>> modified > >>>>>>> > >>>>>>> Tika > >>>>>>> > >>>>>>>>> application. > >>>>>>>>> > >>>>>>>>> The Tika updates I made run fine if I run Tika as a > >> standalone > >>>>>>>>> using > >>>>>>>> > >>>>>>>> either > >>>>>>>> > >>>>>>>>> the command line or the Tika GUI. > >>>>>>>> > >>>>>>>> OK > >>>>>>>> > >>>>>>>>> I am using Nutch 1.2, 1.3 seems to not be able to run for me > >> (I > >>>> get > >>>>>> > >>>>>> an > >>>>>> > >>>>>>>>> error > >>>>>>>>> saying C:/Program not found whenever I try to do anything but > >>> 1.2 > >>>>>>> > >>>>>>> should > >>>>>>> > >>>>>>>> be > >>>>>>>> > >>>>>>>>> fine for what I am trying to do which is just to see the > >> parse > >>>>>> > >>>>>> results > >>>>>> > >>>>>>>> from > >>>>>>>> > >>>>>>>>> the new parser I added to Tika). > >>>>>>>>> > >>>>>>>>> I have replaced the tika-core.jar, tika-parsers.jar and > >>>>>>>> > >>>>>>>> tika-mimetypes.xml > >>>>>>>> > >>>>>>>>> files with my versions of those files as described in the > >>>> following > >>>>>>> > >>>>>>> link: > >>>>>>>>> http://issues.apache.org/jira/browse/NUTCH-766. I also > >> updated > >>>> the > >>>>>>>>> nutch-site.xml to enable the parse-tika plugin. I also > >> updated > >>>> the > >>>>>>>>> parse-plugins.xml file with the following (afm files are what > >> I > >>>> am > >>>>>>> > >>>>>>> trying > >>>>>>> > >>>>>>>>> to > >>>>>>>>> > >>>>>>>>> parse): > >>>>>>>>> <mimeType name="application/x-font-afm"> > >>>>>>>>> > >>>>>>>>> <plugin id="parse-tika" /> > >>>>>>>>> > >>>>>>>>> </mimeType> > >>>>>>>> > >>>>>>>> This is not necessary as by default parse-tika is used for any > >>>>>> > >>>>>> mime-type > >>>>>> > >>>>>>>> unless the mapping mime-type / parser is specified in > >>>>>> > >>>>>> parse-plugins.xml. > >>>>>> > >>>>>>>> This should not have an impact though > >>>>>>>> > >>>>>>>>> I am crawling a personal site in which I have links to .afm > >>>> files. > >>>>>>>>> If > >>>>>> > >>>>>> I > >>>>>> > >>>>>>>>> crawl before making any updates to Nutch, it fetches the > >> files > >>>>>>>>> fine. > >>>>>>>> > >>>>>>>> After > >>>>>>>> > >>>>>>>>> making the updates detailed above, I get the following error: > >>>>>>>>> "fetch > >>>>>> > >>>>>> of > >>>>>> > >>>>>>>>> http://scf.usc.edu/~jfarreol/woor2___.AFM failed with: > >>>>>> > >>>>>>>>> java.lang.NoClassDefFoundError: > >>>>>> org/apache/james/mime4j/MimeException". > >>>>>> > >>>>>>>>> Not really sure, what the issue is but my guess is that I > >> have > >>>> not > >>>>>>>> > >>>>>>>> updated > >>>>>>>> > >>>>>>>>> all the necessary files. Any help would be greatly > >> appreciated. > >>>>>>>> > >>>>>>>> yep, sounds like you have a few jars missing. Nutch-1.2 came > >> with > >>>>>>> > >>>>>>> tika-0.7, > >>>>>>> > >>>>>>>> which version of tika are you trying to use? > >>>>>>>> if you just added a new parser then it would be easier to ship > >> it > >>>> as > >>>>>>>> a separate jar file. I assume that you did not have to modify > >>>>>>>> anything in tika-core, so you could use the standard tika libs > >>> and > >>>>>>>> simply add yours using Ivy. > >>>>>>>> > >>>>>>>> Nutch-1.3 (and 1.4 in SVN) contain a lot of improvements over > >> 1.2 > >>>> so > >>>>>>>> it would be worth getting to the bottom of the issue you're > >>>>>>>> encountering > >>>>>> > >>>>>> and > >>>>>> > >>>>>>>> get 1.3 to work. Moreover I am not sure that you can use a > >>> version > >>>> of > >>>>>>> > >>>>>>> Tika > >>>>>>> > >>>>>>>> 0.7 on Nutch 1.2 without changing parts of the code (to be > >>> checked > >>>>>>> > >>>>>>> though) > >>>>>>> > >>>>>>>> Julien > >>>>>>>> > >>>>>>>> > >>>>>>>> > >>>>>>>> > >>>>>>>> -- > >>>>>>>> * > >>>>>>>> *Open Source Solutions for Text Engineering > >>>>>>>> > >>>>>>>> http://digitalpebble.blogspot.com/ > >>>>>>>> http://www.digitalpebble.com > >>>>>> > >>>>>> -- > >>>>>> *Lewis* > >>>> > >>> > >> > >> > >> > >> -- > >> * > >> *Open Source Solutions for Text Engineering > >> > >> http://digitalpebble.blogspot.com/ > >> http://www.digitalpebble.com > >> > > > ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ > Chris Mattmann, Ph.D. > Senior Computer Scientist > NASA Jet Propulsion Laboratory Pasadena, CA 91109 USA > Office: 171-266B, Mailstop: 171-246 > Email: [email protected] > WWW: http://sunset.usc.edu/~mattmann/ > ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ > Adjunct Assistant Professor, Computer Science Department > University of Southern California, Los Angeles, CA 90089 USA > ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ > >
