Brian, I created a wiki page with your guidance below: https://cwiki.apache.org/confluence/display/OODT/OODT+Crawler+Help
Others can feel free to jump on and contribute. Cheers, Chris On Jun 1, 2011, at 2:20 PM, holenoter wrote: > hey thomas, > > you are using StdProductCrawler which assumes a *.met file already exist for > each file (it has only one precondition which is the existing of the *.met > file) . . . if you want a *.met file generated you will have to use one of > the other 2 crawlers. running: ./crawler_launcher -psc will give you a list > of supported crawlers. you can then run: ./crawler_launcher -h -cid > <crawler_id> where crawler id is one of the ids from the previous command . . > . unfortunately i don't think the other crawlers are documented all that > extensively . . . MetExtractorProductCrawler will use a single extractor for > all files . . . AutoDetectProductCrawler requires a mapping file to be filled > out an mime-types defined > > * MetExtractorProductCrawler example configuration can be found in the source: > - allows you to specify how the crawler will run your extractor > https://svn.apache.org/repos/asf/oodt/trunk/metadata/src/main/resources/examples/extern-config.xml > > * AutoDetectProductCrawler example configuration can be found in the source: > - uses the same metadata extractor specification file (you will have one of > these for each mime-type) > - allows you to define your mime-types -- that is, give a mime-type for a > given filename regular expression > https://svn.apache.org/repos/asf/oodt/trunk/crawler/src/main/resources/examples/mimetypes.xml > > - your file might look something like: > > <mime-info> > > > > <mime-type type="product/hdf5"> > > > <glob pattern="*.h5"/> > > > </mime-type> > > > </mime-info> > - maps your mime-types to extractors > https://svn.apache.org/repos/asf/oodt/trunk/crawler/src/main/resources/examples/mime-extractor-map.xml > > Hope this helps . . . > -brian > > On Jun 01, 2011, at 12:54 PM, Thomas Bennett <[email protected]> wrote: > >> Hi, >> >> I've successfully got the CmdLineIngester working with an ExternMetExtractor >> (written in python): >> >> However, when I try launch the crawler I get a warning telling me the the >> preconditions for ingest have not been met. No .met file has been created. >> >> Two questions: >> 1) I'm just wondering if there is any configuration that I'm missing. >> 2) Where should I start hunting in the code or logs to find out why my met >> extractor was not run? >> >> Kind regards, >> Thomas >> >> For your reference, here is the command and output. >> >> bin$ ./crawler_launcher --crawlerId StdProductCrawler --productPath >> /usr/local/meerkat/data/staging/products/hdf5 --filemgrUrl >> http://localhost:9000 --failureDir /tmp --actionIds DeleteDataFile >> MoveDataFileToFailureDir Unique --metFileExtension met --clientTransferer >> org.apache.oodt.cas.filemgr.datatransfer.LocalDataTransferFactory >> --metExtractor org.apache.oodt.cas.metadata.extractors.ExternMetExtractor >> --metExtractorConfig >> /usr/local/meerkat/extractors/katextractor/katextractor.config >> http://localhost:9000 >> StdProductCrawler >> Jun 1, 2011 9:48:07 PM org.apache.oodt.cas.crawlProductCrawler crawl >> INFO: Crawling /usr/local/meerkat/data/staging/products/hdf5 >> Jun 1, 2011 9:48:07 PM org.apache.oodt.cascrawl.ProductCrawler handleFile >> INFO: Handling file >> /usr/local/meerkat/data/staging/products/hdf5/1263940095.h5 >> Jun 1, 2011 9:48:07 PM org.apache.oodt.cas.crawl.ProductCrawler handleFile >> WARNING: Failed to pass preconditions for ingest of product: >> [/usr/local/meerkat/data/staging/products/hdf5/1263940095.h5] >> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 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 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
