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  1. Nutch
  2. NUTCH-1252

SegmentReader -get shows wrong data



    • Type: Bug
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 1.4, 1.5
    • Fix Version/s: 1.6
    • Component/s: None
    • Labels:
    • Patch Info:
      Patch Available


      The command/option -get of the SegmentReader may show wrong data associated with the given URL.

      To reproduce:

      % mkdir -p test_readseg/urls
      % echo -e "http://nutch.apache.org/\ttest=ApacheNutch\nhttp://abc.test/\ttest=AbcTest\tnutch.score=10.0" > test_readseg/urls/seeds
      % nutch inject test_readseg/crawldb test_readseg/urls
      Injector: starting at 2012-01-18 09:32:25
      Injector: crawlDb: test_readseg/crawldb
      Injector: urlDir: test_readseg/urls
      Injector: Converting injected urls to crawl db entries.
      Injector: Merging injected urls into crawl db.
      Injector: finished at 2012-01-18 09:32:28, elapsed: 00:00:03
      % nutch generate test_readseg/crawldb test_readseg/segments/
      Generator: starting at 2012-01-18 09:32:30
      Generator: Selecting best-scoring urls due for fetch.
      Generator: filtering: true
      Generator: normalizing: true
      Generator: jobtracker is 'local', generating exactly one partition.
      Generator: Partitioning selected urls for politeness.
      Generator: segment: test_readseg/segments/20120118093232
      Generator: finished at 2012-01-18 09:32:34, elapsed: 00:00:03
      % nutch readseg -get test_readseg/segments/* 'http://nutch.apache.org/' -nocontent -noparse -nofetch -noparsedata -noparsetext
      SegmentReader: get 'http://nutch.apache.org/'
      Crawl Generate::
      Version: 7
      Status: 1 (db_unfetched)
      Fetch time: Wed Jan 18 09:32:26 CET 2012
      Modified time: Thu Jan 01 01:00:00 CET 1970
      Retries since fetch: 0
      Retry interval: 2592000 seconds (30 days)
      Score: 10.0
      Signature: null
      Metadata: _ngt_: 1326875550401test: AbcTest

      The metadata and the score indicate that the CrawlDatum shown is the wrong one (that associated to http://abc.test/ but not to http://nutch.apache.org/).


        1. NUTCH-1252.patch
          1 kB
          Sebastian Nagel
        2. NUTCH-1252-v2.patch
          1 kB
          Sebastian Nagel



            • Assignee:
              snagel Sebastian Nagel
              snagel Sebastian Nagel
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