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From "Rajpal, Harjeet Kumar" <Harjeet.Ku...@Honeywell.com>
Subject RE: Mahout on Hadoop
Date Thu, 03 Dec 2009 15:54:55 GMT
Hi Sean,
I tried that.
But the error is same as below

09/12/03 21:21:36 INFO mapred.FileInputFormat: Total input paths to
process : 1
09/12/03 21:21:38 INFO mapred.JobClient: Running job:
job_200912031726_0037
09/12/03 21:21:39 INFO mapred.JobClient:  map 0% reduce 0%
09/12/03 21:21:59 INFO mapred.JobClient: Task Id :
attempt_200912031726_0037_m_000000_0, Status : FAILED
java.lang.RuntimeException: Error in configuring object
	at
org.apache.hadoop.util.ReflectionUtils.setJobConf(ReflectionUtils.java:9
3)
	at
org.apache.hadoop.util.ReflectionUtils.setConf(ReflectionUtils.java:64)
	at
org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:
117)
	at
org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:354)
	at org.apache.hadoop.mapred.MapTask.run(MapTask.java:307)
	at org.apache.hadoop.mapred.Child.main(Child.java:170)
Caused by: java.lang.reflect.InvocationTargetException
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.jav
a:39)
	at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessor
Impl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at
org.apache.hadoop.util.ReflectionUtils.setJobConf(ReflectionUtils.java:8
8)
	... 5 more
Caused by: java.lang.RuntimeException: java.lang.RuntimeException: class
org.apache.mahout.cf.taste.hadoop.RecommenderMapper not
org.apache.hadoop.mapred.Mapper
	at
org.apache.hadoop.conf.Configuration.getClass(Configuration.java:840)
	at
org.apache.hadoop.mapred.JobConf.getMapperClass(JobConf.java:771)
	at
org.apache.hadoop.mapred.MapRunner.configure(MapRunner.java:34)
	... 10 more
Caused by: java.lang.RuntimeException: class
org.apache.mahout.cf.taste.hadoop.RecommenderMapper not
org.apache.hadoop.mapred.Mapper
	at
org.apache.hadoop.conf.Configuration.getClass(Configuration.java:834)
	... 12 more

09/12/03 21:21:59 INFO mapred.JobClient: Task Id :
attempt_200912031726_0037_m_000001_0, Status : FAILED
java.lang.RuntimeException: Error in configuring object
	at
org.apache.hadoop.util.ReflectionUtils.setJobConf(ReflectionUtils.java:9
3)
	at
org.apache.hadoop.util.ReflectionUtils.setConf(ReflectionUtils.java:64)
	at
org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:
117)
	at
org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:354)
	at org.apache.hadoop.mapred.MapTask.run(MapTask.java:307)
	at org.apache.hadoop.mapred.Child.main(Child.java:170)
Caused by: java.lang.reflect.InvocationTargetException
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.jav
a:39)
	at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessor
Impl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at
org.apache.hadoop.util.ReflectionUtils.setJobConf(ReflectionUtils.java:8
8)
	... 5 more
Caused by: java.lang.RuntimeException: java.lang.RuntimeException: class
org.apache.mahout.cf.taste.hadoop.RecommenderMapper not
org.apache.hadoop.mapred.Mapper
	at
org.apache.hadoop.conf.Configuration.getClass(Configuration.java:840)
	at
org.apache.hadoop.mapred.JobConf.getMapperClass(JobConf.java:771)
	at
org.apache.hadoop.mapred.MapRunner.configure(MapRunner.java:34)
	... 10 more
Caused by: java.lang.RuntimeException: class
org.apache.mahout.cf.taste.hadoop.RecommenderMapper not
org.apache.hadoop.mapred.Mapper
	at
org.apache.hadoop.conf.Configuration.getClass(Configuration.java:834)
	... 12 more

09/12/03 21:22:08 INFO mapred.JobClient: Task Id :
attempt_200912031726_0037_m_000001_1, Status : FAILED
java.lang.RuntimeException: Error in configuring object
	at
org.apache.hadoop.util.ReflectionUtils.setJobConf(ReflectionUtils.java:9
3)
	at
org.apache.hadoop.util.ReflectionUtils.setConf(ReflectionUtils.java:64)
	at
org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:
117)
	at
org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:354)
	at org.apache.hadoop.mapred.MapTask.run(MapTask.java:307)
	at org.apache.hadoop.mapred.Child.main(Child.java:170)
Caused by: java.lang.reflect.InvocationTargetException
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.jav
a:39)
	at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessor
Impl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at
org.apache.hadoop.util.ReflectionUtils.setJobConf(ReflectionUtils.java:8
8)
	... 5 more
Caused by: java.lang.RuntimeException: java.lang.RuntimeException: class
org.apache.mahout.cf.taste.hadoop.RecommenderMapper not
org.apache.hadoop.mapred.Mapper
	at
org.apache.hadoop.conf.Configuration.getClass(Configuration.java:840)
	at
org.apache.hadoop.mapred.JobConf.getMapperClass(JobConf.java:771)
	at
org.apache.hadoop.mapred.MapRunner.configure(MapRunner.java:34)
	... 10 more
Caused by: java.lang.RuntimeException: class
org.apache.mahout.cf.taste.hadoop.RecommenderMapper not
org.apache.hadoop.mapred.Mapper
	at
org.apache.hadoop.conf.Configuration.getClass(Configuration.java:834)
	... 12 more

09/12/03 21:22:08 INFO mapred.JobClient: Task Id :
attempt_200912031726_0037_m_000000_1, Status : FAILED
java.lang.RuntimeException: Error in configuring object
	at
org.apache.hadoop.util.ReflectionUtils.setJobConf(ReflectionUtils.java:9
3)
	at
org.apache.hadoop.util.ReflectionUtils.setConf(ReflectionUtils.java:64)
	at
org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:
117)
	at
org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:354)
	at org.apache.hadoop.mapred.MapTask.run(MapTask.java:307)
	at org.apache.hadoop.mapred.Child.main(Child.java:170)
Caused by: java.lang.reflect.InvocationTargetException
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.jav
a:39)
	at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessor
Impl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at
org.apache.hadoop.util.ReflectionUtils.setJobConf(ReflectionUtils.java:8
8)
	... 5 more
Caused by: java.lang.RuntimeException: java.lang.RuntimeException: class
org.apache.mahout.cf.taste.hadoop.RecommenderMapper not
org.apache.hadoop.mapred.Mapper
	at
org.apache.hadoop.conf.Configuration.getClass(Configuration.java:840)
	at
org.apache.hadoop.mapred.JobConf.getMapperClass(JobConf.java:771)
	at
org.apache.hadoop.mapred.MapRunner.configure(MapRunner.java:34)
	... 10 more
Caused by: java.lang.RuntimeException: class
org.apache.mahout.cf.taste.hadoop.RecommenderMapper not
org.apache.hadoop.mapred.Mapper
	at
org.apache.hadoop.conf.Configuration.getClass(Configuration.java:834)
	... 12 more

09/12/03 21:22:17 INFO mapred.JobClient: Task Id :
attempt_200912031726_0037_m_000000_2, Status : FAILED
java.lang.RuntimeException: Error in configuring object
	at
org.apache.hadoop.util.ReflectionUtils.setJobConf(ReflectionUtils.java:9
3)
	at
org.apache.hadoop.util.ReflectionUtils.setConf(ReflectionUtils.java:64)
	at
org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:
117)
	at
org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:354)
	at org.apache.hadoop.mapred.MapTask.run(MapTask.java:307)
	at org.apache.hadoop.mapred.Child.main(Child.java:170)
Caused by: java.lang.reflect.InvocationTargetException
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.jav
a:39)
	at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessor
Impl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at
org.apache.hadoop.util.ReflectionUtils.setJobConf(ReflectionUtils.java:8
8)
	... 5 more
Caused by: java.lang.RuntimeException: java.lang.RuntimeException: class
org.apache.mahout.cf.taste.hadoop.RecommenderMapper not
org.apache.hadoop.mapred.Mapper
	at
org.apache.hadoop.conf.Configuration.getClass(Configuration.java:840)
	at
org.apache.hadoop.mapred.JobConf.getMapperClass(JobConf.java:771)
	at
org.apache.hadoop.mapred.MapRunner.configure(MapRunner.java:34)
	... 10 more
Caused by: java.lang.RuntimeException: class
org.apache.mahout.cf.taste.hadoop.RecommenderMapper not
org.apache.hadoop.mapred.Mapper
	at
org.apache.hadoop.conf.Configuration.getClass(Configuration.java:834)
	... 12 more

09/12/03 21:22:17 INFO mapred.JobClient: Task Id :
attempt_200912031726_0037_m_000001_2, Status : FAILED
java.lang.RuntimeException: Error in configuring object
	at
org.apache.hadoop.util.ReflectionUtils.setJobConf(ReflectionUtils.java:9
3)
	at
org.apache.hadoop.util.ReflectionUtils.setConf(ReflectionUtils.java:64)
	at
org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:
117)
	at
org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:354)
	at org.apache.hadoop.mapred.MapTask.run(MapTask.java:307)
	at org.apache.hadoop.mapred.Child.main(Child.java:170)
Caused by: java.lang.reflect.InvocationTargetException
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.jav
a:39)
	at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessor
Impl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at
org.apache.hadoop.util.ReflectionUtils.setJobConf(ReflectionUtils.java:8
8)
	... 5 more
Caused by: java.lang.RuntimeException: java.lang.RuntimeException: class
org.apache.mahout.cf.taste.hadoop.RecommenderMapper not
org.apache.hadoop.mapred.Mapper
	at
org.apache.hadoop.conf.Configuration.getClass(Configuration.java:840)
	at
org.apache.hadoop.mapred.JobConf.getMapperClass(JobConf.java:771)
	at
org.apache.hadoop.mapred.MapRunner.configure(MapRunner.java:34)
	... 10 more
Caused by: java.lang.RuntimeException: class
org.apache.mahout.cf.taste.hadoop.RecommenderMapper not
org.apache.hadoop.mapred.Mapper
	at
org.apache.hadoop.conf.Configuration.getClass(Configuration.java:834)
	... 12 more

09/12/03 21:22:30 INFO mapred.JobClient: Job complete:
job_200912031726_0037
09/12/03 21:22:30 INFO mapred.JobClient: Counters: 3
09/12/03 21:22:30 INFO mapred.JobClient:   Job Counters 
09/12/03 21:22:30 INFO mapred.JobClient:     Launched map tasks=8
09/12/03 21:22:30 INFO mapred.JobClient:     Data-local map tasks=8
09/12/03 21:22:30 INFO mapred.JobClient:     Failed map tasks=1
Exception in thread "main" java.io.IOException: Job failed!
	at
org.apache.hadoop.mapred.JobClient.runJob(JobClient.java:1252)
	at
org.apache.mahout.cf.taste.hadoop.RecommenderJob.main(RecommenderJob.jav
a:178)

Thanks and Regards,
Harjeet Kumar Rajpal

-----Original Message-----
From: Sean Owen [mailto:srowen@gmail.com] 
Sent: Thursday, December 03, 2009 9:02 PM
To: mahout-user@lucene.apache.org
Subject: Re: Mahout on Hadoop

Sounds like a server problem, but I am able to access it now.

In any event, I'm just saying update the code from SVN. That's all.

On Thu, Dec 3, 2009 at 3:25 PM, Rajpal, Harjeet Kumar
<Harjeet.Kumar@honeywell.com> wrote:
> Hi Sean,
> I am unable to access https://issues.apache.org/jira/browse/MAHOUT-143
> It shows could not find server.
> Could you tell me some other way to access the corrected code.
> Thanks and regards,
> Harjeet Kumar

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