SegmentMerger and SegmentReader should use NutchJob
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Key: NUTCH-333
URL: http://issues.apache.org/jira/browse/NUTCH-333
Project: Nutch
Issue Type: Bug
Affects Versions: 0.9-dev
Reporter: [EMAIL PROTECTED]
Priority: Minor
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'.
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