[MAPREDUCE-1907] nutch doesnt run under 0.20.2+228-1~karmic-cdh3b1 version of hadoop

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Won't Fix
• Affects Version/s: 0.20.2
• Component/s: tasktracker

Environment

Linux 2.6.31-14-server #48-Ubuntu SMP Fri Oct 16 15:07:34 UTC 2009 x86_64 GNU/Linux

• Assignee: Unassigned
• Reporter: Robert Gonzalez
• Created: 01/Jul/10 19:32
• Updated: 30/Jul/14 21:35
• Resolved: 30/Jul/14 21:35

Description

new versions of hadoop appear to put jars in a different format now, instead of file:/a/b/c/d/job.jar, its now jar:file:/a/b/c/d/job.jar!, which breaks nutch when its trying to load its plugins. Specifically, the stack trace looks like:

Caused by: java.lang.RuntimeException: x point org.apache.nutch.net.URLNormalizer not found.
at org.apache.nutch.net.URLNormalizers.<init>(URLNormalizers.java:124)
at org.apache.nutch.crawl.Injector$InjectMapper.configure(Injector.java:57)

A simple test class was written the used the URLFilters class, and the following stack trace resulted:

10/07/01 14:25:25 INFO mapred.JobClient: Task Id : attempt_201006171624_46525_m_000000_1, Status : FAILED
java.lang.RuntimeException: org.apache.nutch.net.URLFilter not found.
at org.apache.nutch.net.URLFilters.<init>(URLFilters.java:52)
at com.maxpoint.crawl.BidSampler$BIdSMapper.setup(BidSampler.java:42)
at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:142)
at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:621)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:305)
at org.apache.hadoop.mapred.Child.main(Child.java:170)

Running this on an older version of hadoop works.