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  1. Nutch
  2. NUTCH-333

SegmentMerger and SegmentReader should use NutchJob

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: Minor
    • Resolution: Fixed
    • Affects Version/s: 0.9.0
    • Fix Version/s: None
    • Component/s: None
    • Labels:
      None

      Description

      I have a job jar that is nutch with additions. I can launch this job jar on a pure hadoop platform usually without issue. I can run nutch jobs – update db, invert links, etc. – without issue. Recently I tried to do the same with SegmentMerg'ing only it would fail complaining about ClassNotFound:

      2006-07-28 20:43:54,371 WARN org.apache.hadoop.mapred.JobTracker: job init failed
      java.io.IOException: java.lang.ClassNotFoundException: org.apache.nutch.segment.SegmentMerger$ObjectInputFormat
      at org.apache.hadoop.mapred.JobInProgress.initTasks(JobInProgress.java:130)
      at org.apache.hadoop.mapred.JobTracker$JobInitThread.run(JobTracker.java:310)
      at java.lang.Thread.run(Thread.java:595)
      java.io.IOException: Job failed!

      After digging and chatting today with Stefan, the SegmentMerger and SegmentReader classes are not like the others. Others make a new JobConf inside in their job setup by doing a 'new NutchJob' whereas Segment* does 'new JobConf'. Sure enough, if I make the change, all works.

      NutchJob triggers the setting of the job jar into the configuration (JobConf.findContainingJar is run). This doesn't happen for 'new JobConf'.

        Attachments

        1. use-nutch-job_patch.txt
          2 kB
          Dennis Kubes
        2. nutch333.patch
          2 kB
          Michael Stack

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            • Assignee:
              Unassigned
              Reporter:
              stack Michael Stack
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                Updated:
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