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Posted to user@mahout.apache.org by Sanjib Kumar Das <sa...@gmail.com> on 2010/11/05 21:57:05 UTC
Problem encountered while running RecommenderJob
Hi all,
I am trying to run the GroupLensRecommender on hadoop.
I am using the pseudo.RecommenderJob for that purpose.
Before running the command below i copied mahout-core-0.4-SNAPSHOT-job.jar
and renamed it to recommender.jar. I updated recommender.jar by adding
grouplens.jar to it.
Still I am getting the ClassNotFoundException for GroupLensRecommender. Am I
missing something?
Any help in this regard is highly appreciated.
hadoop jar recommender.jar
org.apache.mahout.cf.taste.hadoop.pseudo.RecommenderJob
-Dmapred.input.dir=testdata/ratings.csv -Dmapred.output.dir=output
--recommenderClassName
org.apache.mahout.cf.taste.example.grouplens.GroupLensRecommender
--numRecommendations 10
10/11/05 15:44:34 INFO common.AbstractJob: Command line arguments:
{--endPhase=2147483647, --numRecommendations=10,
--recommenderClassName=org.apache.mahout.cf.taste.example.grouplens.GroupLensRecommender,
--startPhase=0, --tempDir=temp}
10/11/05 15:44:34 INFO jvm.JvmMetrics: Initializing JVM Metrics with
processName=JobTracker, sessionId=
10/11/05 15:44:35 INFO input.FileInputFormat: Total input paths to process :
1
10/11/05 15:44:36 INFO mapred.JobClient: Running job: job_local_0001
10/11/05 15:44:36 INFO input.FileInputFormat: Total input paths to process :
1
10/11/05 15:44:36 INFO mapred.MapTask: io.sort.mb = 100
10/11/05 15:44:36 INFO mapred.MapTask: data buffer = 79691776/99614720
10/11/05 15:44:36 INFO mapred.MapTask: record buffer = 262144/327680
10/11/05 15:44:36 INFO mapred.MapTask: Spilling map output: record full =
true
10/11/05 15:44:36 INFO mapred.MapTask: bufstart = 0; bufend = 514677;
bufvoid = 99614720
10/11/05 15:44:36 INFO mapred.MapTask: kvstart = 0; kvend = 262144; length =
327680
10/11/05 15:44:37 INFO mapred.JobClient: map 0% reduce 0%
10/11/05 15:44:38 INFO util.NativeCodeLoader: Loaded the native-hadoop
library
10/11/05 15:44:38 INFO zlib.ZlibFactory: Successfully loaded & initialized
native-zlib library
10/11/05 15:44:38 INFO compress.CodecPool: Got brand-new compressor
10/11/05 15:44:39 INFO mapred.MapTask: Finished spill 0
10/11/05 15:44:39 INFO mapred.MapTask: Spilling map output: record full =
true
10/11/05 15:44:39 INFO mapred.MapTask: bufstart = 514677; bufend = 1038963;
bufvoid = 99614720
10/11/05 15:44:39 INFO mapred.MapTask: kvstart = 262144; kvend = 196607;
length = 327680
10/11/05 15:44:42 INFO mapred.LocalJobRunner:
10/11/05 15:44:42 INFO mapred.MapTask: Finished spill 1
10/11/05 15:44:42 INFO mapred.MapTask: Spilling map output: record full =
true
10/11/05 15:44:42 INFO mapred.MapTask: bufstart = 1038963; bufend = 1563249;
bufvoid = 99614720
10/11/05 15:44:42 INFO mapred.MapTask: kvstart = 196607; kvend = 131070;
length = 327680
10/11/05 15:44:43 INFO mapred.JobClient: map 58% reduce 0%
10/11/05 15:44:44 INFO mapred.MapTask: Finished spill 2
10/11/05 15:44:45 INFO mapred.LocalJobRunner:
10/11/05 15:44:45 INFO mapred.MapTask: Starting flush of map output
10/11/05 15:44:46 INFO mapred.JobClient: map 90% reduce 0%
10/11/05 15:44:47 INFO mapred.MapTask: Finished spill 3
10/11/05 15:44:47 INFO mapred.Merger: Merging 4 sorted segments
10/11/05 15:44:47 INFO compress.CodecPool: Got brand-new decompressor
10/11/05 15:44:47 INFO compress.CodecPool: Got brand-new decompressor
10/11/05 15:44:47 INFO compress.CodecPool: Got brand-new decompressor
10/11/05 15:44:47 INFO compress.CodecPool: Got brand-new decompressor
10/11/05 15:44:47 INFO mapred.Merger: Down to the last merge-pass, with 4
segments left of total size: 17968 bytes
10/11/05 15:44:48 INFO mapred.LocalJobRunner:
10/11/05 15:44:49 INFO mapred.JobClient: map 100% reduce 0%
10/11/05 15:44:51 INFO mapred.LocalJobRunner:
10/11/05 15:44:52 INFO mapred.TaskRunner: Task:attempt_local_0001_m_000000_0
is done. And is in the process of commiting
10/11/05 15:44:52 INFO mapred.LocalJobRunner:
10/11/05 15:44:52 INFO mapred.TaskRunner: Task
'attempt_local_0001_m_000000_0' done.
10/11/05 15:44:52 INFO mapred.LocalJobRunner:
10/11/05 15:44:52 INFO mapred.Merger: Merging 1 sorted segments
10/11/05 15:44:52 INFO mapred.Merger: Down to the last merge-pass, with 1
segments left of total size: 17813 bytes
10/11/05 15:44:52 INFO mapred.LocalJobRunner:
10/11/05 15:44:53 INFO file.FileDataModel: Creating FileDataModel for file
/tmp/mahout-taste-hadoop3533164687715963034txt
10/11/05 15:44:53 INFO file.FileDataModel: Reading file info...
10/11/05 15:44:58 INFO mapred.LocalJobRunner: reduce > reduce
10/11/05 15:44:59 INFO mapred.JobClient: map 100% reduce 74%
10/11/05 15:45:08 INFO file.FileDataModel: Processed 1000000 lines
10/11/05 15:45:08 INFO file.FileDataModel: Read lines: 1000209
10/11/05 15:45:11 INFO model.GenericDataModel: Processed 6040 users
10/11/05 15:45:11 WARN mapred.LocalJobRunner: job_local_0001
java.lang.IllegalStateException: java.lang.ClassNotFoundException:
org.apache.mahout.cf.taste.example.grouplens.GroupLensRecommender
Re: Problem encountered while running RecommenderJob
Posted by Sean Owen <sr...@gmail.com>.
I see. What do you mean about adding grouplens.jar? You would have to merge
its classes into it, rather than just add the .jar inside the .jar file.
On Sat, Nov 6, 2010 at 1:57 PM, Sanjib Kumar Das <sa...@gmail.com>wrote:
> I am trying to run GroupLensRecommender using the pseudo-distributed
> RecomenderJob. Isn't that allowed?
>
> hadoop jar recommender.jar
> org.apache.mahout.cf.taste.hadoop.pseudo.RecommenderJob
> -Dmapred.input.dir=testdata/ratings.csv
> -Dmapred.output.dir=output
> --recommenderClassName
> org.apache.mahout.cf.taste.example.grouplens.GroupLensRecommender
> --numRecommendations 10
>
>
> On Sat, Nov 6, 2010 at 4:55 AM, Sean Owen <sr...@gmail.com> wrote:
>
> > I'm not sure what the context is -- GroupLensRecommender has nothing to
> do
> > with Hadoop. So I'm not surprised this doesn't work.
> >
> > On Fri, Nov 5, 2010 at 8:57 PM, Sanjib Kumar Das <sanjib.kgp@gmail.com
> > >wrote:
> >
> > > Hi all,
> > >
> > > I am trying to run the GroupLensRecommender on hadoop.
> > > I am using the pseudo.RecommenderJob for that purpose.
> > > Before running the command below i copied
> > mahout-core-0.4-SNAPSHOT-job.jar
> > > and renamed it to recommender.jar. I updated recommender.jar by adding
> > > grouplens.jar to it.
> > > Still I am getting the ClassNotFoundException for GroupLensRecommender.
> > Am
> > > I
> > > missing something?
> > > Any help in this regard is highly appreciated.
> > >
> > >
> > > hadoop jar recommender.jar
> > > org.apache.mahout.cf.taste.hadoop.pseudo.RecommenderJob
> > > -Dmapred.input.dir=testdata/ratings.csv -Dmapred.output.dir=output
> > > --recommenderClassName
> > > org.apache.mahout.cf.taste.example.grouplens.GroupLensRecommender
> > > --numRecommendations 10
> > >
> > > 10/11/05 15:44:34 INFO common.AbstractJob: Command line arguments:
> > > {--endPhase=2147483647, --numRecommendations=10,
> > >
> > >
> >
> --recommenderClassName=org.apache.mahout.cf.taste.example.grouplens.GroupLensRecommender,
> > > --startPhase=0, --tempDir=temp}
> > > 10/11/05 15:44:34 INFO jvm.JvmMetrics: Initializing JVM Metrics with
> > > processName=JobTracker, sessionId=
> > > 10/11/05 15:44:35 INFO input.FileInputFormat: Total input paths to
> > process
> > > :
> > > 1
> > > 10/11/05 15:44:36 INFO mapred.JobClient: Running job: job_local_0001
> > > 10/11/05 15:44:36 INFO input.FileInputFormat: Total input paths to
> > process
> > > :
> > > 1
> > > 10/11/05 15:44:36 INFO mapred.MapTask: io.sort.mb = 100
> > > 10/11/05 15:44:36 INFO mapred.MapTask: data buffer = 79691776/99614720
> > > 10/11/05 15:44:36 INFO mapred.MapTask: record buffer = 262144/327680
> > > 10/11/05 15:44:36 INFO mapred.MapTask: Spilling map output: record full
> =
> > > true
> > > 10/11/05 15:44:36 INFO mapred.MapTask: bufstart = 0; bufend = 514677;
> > > bufvoid = 99614720
> > > 10/11/05 15:44:36 INFO mapred.MapTask: kvstart = 0; kvend = 262144;
> > length
> > > =
> > > 327680
> > > 10/11/05 15:44:37 INFO mapred.JobClient: map 0% reduce 0%
> > > 10/11/05 15:44:38 INFO util.NativeCodeLoader: Loaded the native-hadoop
> > > library
> > > 10/11/05 15:44:38 INFO zlib.ZlibFactory: Successfully loaded &
> > initialized
> > > native-zlib library
> > > 10/11/05 15:44:38 INFO compress.CodecPool: Got brand-new compressor
> > > 10/11/05 15:44:39 INFO mapred.MapTask: Finished spill 0
> > > 10/11/05 15:44:39 INFO mapred.MapTask: Spilling map output: record full
> =
> > > true
> > > 10/11/05 15:44:39 INFO mapred.MapTask: bufstart = 514677; bufend =
> > 1038963;
> > > bufvoid = 99614720
> > > 10/11/05 15:44:39 INFO mapred.MapTask: kvstart = 262144; kvend =
> 196607;
> > > length = 327680
> > > 10/11/05 15:44:42 INFO mapred.LocalJobRunner:
> > > 10/11/05 15:44:42 INFO mapred.MapTask: Finished spill 1
> > > 10/11/05 15:44:42 INFO mapred.MapTask: Spilling map output: record full
> =
> > > true
> > > 10/11/05 15:44:42 INFO mapred.MapTask: bufstart = 1038963; bufend =
> > > 1563249;
> > > bufvoid = 99614720
> > > 10/11/05 15:44:42 INFO mapred.MapTask: kvstart = 196607; kvend =
> 131070;
> > > length = 327680
> > > 10/11/05 15:44:43 INFO mapred.JobClient: map 58% reduce 0%
> > > 10/11/05 15:44:44 INFO mapred.MapTask: Finished spill 2
> > > 10/11/05 15:44:45 INFO mapred.LocalJobRunner:
> > > 10/11/05 15:44:45 INFO mapred.MapTask: Starting flush of map output
> > > 10/11/05 15:44:46 INFO mapred.JobClient: map 90% reduce 0%
> > > 10/11/05 15:44:47 INFO mapred.MapTask: Finished spill 3
> > > 10/11/05 15:44:47 INFO mapred.Merger: Merging 4 sorted segments
> > > 10/11/05 15:44:47 INFO compress.CodecPool: Got brand-new decompressor
> > > 10/11/05 15:44:47 INFO compress.CodecPool: Got brand-new decompressor
> > > 10/11/05 15:44:47 INFO compress.CodecPool: Got brand-new decompressor
> > > 10/11/05 15:44:47 INFO compress.CodecPool: Got brand-new decompressor
> > > 10/11/05 15:44:47 INFO mapred.Merger: Down to the last merge-pass, with
> 4
> > > segments left of total size: 17968 bytes
> > > 10/11/05 15:44:48 INFO mapred.LocalJobRunner:
> > > 10/11/05 15:44:49 INFO mapred.JobClient: map 100% reduce 0%
> > > 10/11/05 15:44:51 INFO mapred.LocalJobRunner:
> > > 10/11/05 15:44:52 INFO mapred.TaskRunner:
> > > Task:attempt_local_0001_m_000000_0
> > > is done. And is in the process of commiting
> > > 10/11/05 15:44:52 INFO mapred.LocalJobRunner:
> > > 10/11/05 15:44:52 INFO mapred.TaskRunner: Task
> > > 'attempt_local_0001_m_000000_0' done.
> > > 10/11/05 15:44:52 INFO mapred.LocalJobRunner:
> > > 10/11/05 15:44:52 INFO mapred.Merger: Merging 1 sorted segments
> > > 10/11/05 15:44:52 INFO mapred.Merger: Down to the last merge-pass, with
> 1
> > > segments left of total size: 17813 bytes
> > > 10/11/05 15:44:52 INFO mapred.LocalJobRunner:
> > > 10/11/05 15:44:53 INFO file.FileDataModel: Creating FileDataModel for
> > file
> > > /tmp/mahout-taste-hadoop3533164687715963034txt
> > > 10/11/05 15:44:53 INFO file.FileDataModel: Reading file info...
> > > 10/11/05 15:44:58 INFO mapred.LocalJobRunner: reduce > reduce
> > > 10/11/05 15:44:59 INFO mapred.JobClient: map 100% reduce 74%
> > > 10/11/05 15:45:08 INFO file.FileDataModel: Processed 1000000 lines
> > > 10/11/05 15:45:08 INFO file.FileDataModel: Read lines: 1000209
> > > 10/11/05 15:45:11 INFO model.GenericDataModel: Processed 6040 users
> > > 10/11/05 15:45:11 WARN mapred.LocalJobRunner: job_local_0001
> > > java.lang.IllegalStateException: java.lang.ClassNotFoundException:
> > > org.apache.mahout.cf.taste.example.grouplens.GroupLensRecommender
> > >
> >
>
Re: Problem encountered while running RecommenderJob
Posted by Sanjib Kumar Das <sa...@gmail.com>.
I am trying to run GroupLensRecommender using the pseudo-distributed
RecomenderJob. Isn't that allowed?
hadoop jar recommender.jar
org.apache.mahout.cf.taste.hadoop.pseudo.RecommenderJob
-Dmapred.input.dir=testdata/ratings.csv
-Dmapred.output.dir=output
--recommenderClassName
org.apache.mahout.cf.taste.example.grouplens.GroupLensRecommender
--numRecommendations 10
On Sat, Nov 6, 2010 at 4:55 AM, Sean Owen <sr...@gmail.com> wrote:
> I'm not sure what the context is -- GroupLensRecommender has nothing to do
> with Hadoop. So I'm not surprised this doesn't work.
>
> On Fri, Nov 5, 2010 at 8:57 PM, Sanjib Kumar Das <sanjib.kgp@gmail.com
> >wrote:
>
> > Hi all,
> >
> > I am trying to run the GroupLensRecommender on hadoop.
> > I am using the pseudo.RecommenderJob for that purpose.
> > Before running the command below i copied
> mahout-core-0.4-SNAPSHOT-job.jar
> > and renamed it to recommender.jar. I updated recommender.jar by adding
> > grouplens.jar to it.
> > Still I am getting the ClassNotFoundException for GroupLensRecommender.
> Am
> > I
> > missing something?
> > Any help in this regard is highly appreciated.
> >
> >
> > hadoop jar recommender.jar
> > org.apache.mahout.cf.taste.hadoop.pseudo.RecommenderJob
> > -Dmapred.input.dir=testdata/ratings.csv -Dmapred.output.dir=output
> > --recommenderClassName
> > org.apache.mahout.cf.taste.example.grouplens.GroupLensRecommender
> > --numRecommendations 10
> >
> > 10/11/05 15:44:34 INFO common.AbstractJob: Command line arguments:
> > {--endPhase=2147483647, --numRecommendations=10,
> >
> >
> --recommenderClassName=org.apache.mahout.cf.taste.example.grouplens.GroupLensRecommender,
> > --startPhase=0, --tempDir=temp}
> > 10/11/05 15:44:34 INFO jvm.JvmMetrics: Initializing JVM Metrics with
> > processName=JobTracker, sessionId=
> > 10/11/05 15:44:35 INFO input.FileInputFormat: Total input paths to
> process
> > :
> > 1
> > 10/11/05 15:44:36 INFO mapred.JobClient: Running job: job_local_0001
> > 10/11/05 15:44:36 INFO input.FileInputFormat: Total input paths to
> process
> > :
> > 1
> > 10/11/05 15:44:36 INFO mapred.MapTask: io.sort.mb = 100
> > 10/11/05 15:44:36 INFO mapred.MapTask: data buffer = 79691776/99614720
> > 10/11/05 15:44:36 INFO mapred.MapTask: record buffer = 262144/327680
> > 10/11/05 15:44:36 INFO mapred.MapTask: Spilling map output: record full =
> > true
> > 10/11/05 15:44:36 INFO mapred.MapTask: bufstart = 0; bufend = 514677;
> > bufvoid = 99614720
> > 10/11/05 15:44:36 INFO mapred.MapTask: kvstart = 0; kvend = 262144;
> length
> > =
> > 327680
> > 10/11/05 15:44:37 INFO mapred.JobClient: map 0% reduce 0%
> > 10/11/05 15:44:38 INFO util.NativeCodeLoader: Loaded the native-hadoop
> > library
> > 10/11/05 15:44:38 INFO zlib.ZlibFactory: Successfully loaded &
> initialized
> > native-zlib library
> > 10/11/05 15:44:38 INFO compress.CodecPool: Got brand-new compressor
> > 10/11/05 15:44:39 INFO mapred.MapTask: Finished spill 0
> > 10/11/05 15:44:39 INFO mapred.MapTask: Spilling map output: record full =
> > true
> > 10/11/05 15:44:39 INFO mapred.MapTask: bufstart = 514677; bufend =
> 1038963;
> > bufvoid = 99614720
> > 10/11/05 15:44:39 INFO mapred.MapTask: kvstart = 262144; kvend = 196607;
> > length = 327680
> > 10/11/05 15:44:42 INFO mapred.LocalJobRunner:
> > 10/11/05 15:44:42 INFO mapred.MapTask: Finished spill 1
> > 10/11/05 15:44:42 INFO mapred.MapTask: Spilling map output: record full =
> > true
> > 10/11/05 15:44:42 INFO mapred.MapTask: bufstart = 1038963; bufend =
> > 1563249;
> > bufvoid = 99614720
> > 10/11/05 15:44:42 INFO mapred.MapTask: kvstart = 196607; kvend = 131070;
> > length = 327680
> > 10/11/05 15:44:43 INFO mapred.JobClient: map 58% reduce 0%
> > 10/11/05 15:44:44 INFO mapred.MapTask: Finished spill 2
> > 10/11/05 15:44:45 INFO mapred.LocalJobRunner:
> > 10/11/05 15:44:45 INFO mapred.MapTask: Starting flush of map output
> > 10/11/05 15:44:46 INFO mapred.JobClient: map 90% reduce 0%
> > 10/11/05 15:44:47 INFO mapred.MapTask: Finished spill 3
> > 10/11/05 15:44:47 INFO mapred.Merger: Merging 4 sorted segments
> > 10/11/05 15:44:47 INFO compress.CodecPool: Got brand-new decompressor
> > 10/11/05 15:44:47 INFO compress.CodecPool: Got brand-new decompressor
> > 10/11/05 15:44:47 INFO compress.CodecPool: Got brand-new decompressor
> > 10/11/05 15:44:47 INFO compress.CodecPool: Got brand-new decompressor
> > 10/11/05 15:44:47 INFO mapred.Merger: Down to the last merge-pass, with 4
> > segments left of total size: 17968 bytes
> > 10/11/05 15:44:48 INFO mapred.LocalJobRunner:
> > 10/11/05 15:44:49 INFO mapred.JobClient: map 100% reduce 0%
> > 10/11/05 15:44:51 INFO mapred.LocalJobRunner:
> > 10/11/05 15:44:52 INFO mapred.TaskRunner:
> > Task:attempt_local_0001_m_000000_0
> > is done. And is in the process of commiting
> > 10/11/05 15:44:52 INFO mapred.LocalJobRunner:
> > 10/11/05 15:44:52 INFO mapred.TaskRunner: Task
> > 'attempt_local_0001_m_000000_0' done.
> > 10/11/05 15:44:52 INFO mapred.LocalJobRunner:
> > 10/11/05 15:44:52 INFO mapred.Merger: Merging 1 sorted segments
> > 10/11/05 15:44:52 INFO mapred.Merger: Down to the last merge-pass, with 1
> > segments left of total size: 17813 bytes
> > 10/11/05 15:44:52 INFO mapred.LocalJobRunner:
> > 10/11/05 15:44:53 INFO file.FileDataModel: Creating FileDataModel for
> file
> > /tmp/mahout-taste-hadoop3533164687715963034txt
> > 10/11/05 15:44:53 INFO file.FileDataModel: Reading file info...
> > 10/11/05 15:44:58 INFO mapred.LocalJobRunner: reduce > reduce
> > 10/11/05 15:44:59 INFO mapred.JobClient: map 100% reduce 74%
> > 10/11/05 15:45:08 INFO file.FileDataModel: Processed 1000000 lines
> > 10/11/05 15:45:08 INFO file.FileDataModel: Read lines: 1000209
> > 10/11/05 15:45:11 INFO model.GenericDataModel: Processed 6040 users
> > 10/11/05 15:45:11 WARN mapred.LocalJobRunner: job_local_0001
> > java.lang.IllegalStateException: java.lang.ClassNotFoundException:
> > org.apache.mahout.cf.taste.example.grouplens.GroupLensRecommender
> >
>
Re: Problem encountered while running RecommenderJob
Posted by Sean Owen <sr...@gmail.com>.
I'm not sure what the context is -- GroupLensRecommender has nothing to do
with Hadoop. So I'm not surprised this doesn't work.
On Fri, Nov 5, 2010 at 8:57 PM, Sanjib Kumar Das <sa...@gmail.com>wrote:
> Hi all,
>
> I am trying to run the GroupLensRecommender on hadoop.
> I am using the pseudo.RecommenderJob for that purpose.
> Before running the command below i copied mahout-core-0.4-SNAPSHOT-job.jar
> and renamed it to recommender.jar. I updated recommender.jar by adding
> grouplens.jar to it.
> Still I am getting the ClassNotFoundException for GroupLensRecommender. Am
> I
> missing something?
> Any help in this regard is highly appreciated.
>
>
> hadoop jar recommender.jar
> org.apache.mahout.cf.taste.hadoop.pseudo.RecommenderJob
> -Dmapred.input.dir=testdata/ratings.csv -Dmapred.output.dir=output
> --recommenderClassName
> org.apache.mahout.cf.taste.example.grouplens.GroupLensRecommender
> --numRecommendations 10
>
> 10/11/05 15:44:34 INFO common.AbstractJob: Command line arguments:
> {--endPhase=2147483647, --numRecommendations=10,
>
> --recommenderClassName=org.apache.mahout.cf.taste.example.grouplens.GroupLensRecommender,
> --startPhase=0, --tempDir=temp}
> 10/11/05 15:44:34 INFO jvm.JvmMetrics: Initializing JVM Metrics with
> processName=JobTracker, sessionId=
> 10/11/05 15:44:35 INFO input.FileInputFormat: Total input paths to process
> :
> 1
> 10/11/05 15:44:36 INFO mapred.JobClient: Running job: job_local_0001
> 10/11/05 15:44:36 INFO input.FileInputFormat: Total input paths to process
> :
> 1
> 10/11/05 15:44:36 INFO mapred.MapTask: io.sort.mb = 100
> 10/11/05 15:44:36 INFO mapred.MapTask: data buffer = 79691776/99614720
> 10/11/05 15:44:36 INFO mapred.MapTask: record buffer = 262144/327680
> 10/11/05 15:44:36 INFO mapred.MapTask: Spilling map output: record full =
> true
> 10/11/05 15:44:36 INFO mapred.MapTask: bufstart = 0; bufend = 514677;
> bufvoid = 99614720
> 10/11/05 15:44:36 INFO mapred.MapTask: kvstart = 0; kvend = 262144; length
> =
> 327680
> 10/11/05 15:44:37 INFO mapred.JobClient: map 0% reduce 0%
> 10/11/05 15:44:38 INFO util.NativeCodeLoader: Loaded the native-hadoop
> library
> 10/11/05 15:44:38 INFO zlib.ZlibFactory: Successfully loaded & initialized
> native-zlib library
> 10/11/05 15:44:38 INFO compress.CodecPool: Got brand-new compressor
> 10/11/05 15:44:39 INFO mapred.MapTask: Finished spill 0
> 10/11/05 15:44:39 INFO mapred.MapTask: Spilling map output: record full =
> true
> 10/11/05 15:44:39 INFO mapred.MapTask: bufstart = 514677; bufend = 1038963;
> bufvoid = 99614720
> 10/11/05 15:44:39 INFO mapred.MapTask: kvstart = 262144; kvend = 196607;
> length = 327680
> 10/11/05 15:44:42 INFO mapred.LocalJobRunner:
> 10/11/05 15:44:42 INFO mapred.MapTask: Finished spill 1
> 10/11/05 15:44:42 INFO mapred.MapTask: Spilling map output: record full =
> true
> 10/11/05 15:44:42 INFO mapred.MapTask: bufstart = 1038963; bufend =
> 1563249;
> bufvoid = 99614720
> 10/11/05 15:44:42 INFO mapred.MapTask: kvstart = 196607; kvend = 131070;
> length = 327680
> 10/11/05 15:44:43 INFO mapred.JobClient: map 58% reduce 0%
> 10/11/05 15:44:44 INFO mapred.MapTask: Finished spill 2
> 10/11/05 15:44:45 INFO mapred.LocalJobRunner:
> 10/11/05 15:44:45 INFO mapred.MapTask: Starting flush of map output
> 10/11/05 15:44:46 INFO mapred.JobClient: map 90% reduce 0%
> 10/11/05 15:44:47 INFO mapred.MapTask: Finished spill 3
> 10/11/05 15:44:47 INFO mapred.Merger: Merging 4 sorted segments
> 10/11/05 15:44:47 INFO compress.CodecPool: Got brand-new decompressor
> 10/11/05 15:44:47 INFO compress.CodecPool: Got brand-new decompressor
> 10/11/05 15:44:47 INFO compress.CodecPool: Got brand-new decompressor
> 10/11/05 15:44:47 INFO compress.CodecPool: Got brand-new decompressor
> 10/11/05 15:44:47 INFO mapred.Merger: Down to the last merge-pass, with 4
> segments left of total size: 17968 bytes
> 10/11/05 15:44:48 INFO mapred.LocalJobRunner:
> 10/11/05 15:44:49 INFO mapred.JobClient: map 100% reduce 0%
> 10/11/05 15:44:51 INFO mapred.LocalJobRunner:
> 10/11/05 15:44:52 INFO mapred.TaskRunner:
> Task:attempt_local_0001_m_000000_0
> is done. And is in the process of commiting
> 10/11/05 15:44:52 INFO mapred.LocalJobRunner:
> 10/11/05 15:44:52 INFO mapred.TaskRunner: Task
> 'attempt_local_0001_m_000000_0' done.
> 10/11/05 15:44:52 INFO mapred.LocalJobRunner:
> 10/11/05 15:44:52 INFO mapred.Merger: Merging 1 sorted segments
> 10/11/05 15:44:52 INFO mapred.Merger: Down to the last merge-pass, with 1
> segments left of total size: 17813 bytes
> 10/11/05 15:44:52 INFO mapred.LocalJobRunner:
> 10/11/05 15:44:53 INFO file.FileDataModel: Creating FileDataModel for file
> /tmp/mahout-taste-hadoop3533164687715963034txt
> 10/11/05 15:44:53 INFO file.FileDataModel: Reading file info...
> 10/11/05 15:44:58 INFO mapred.LocalJobRunner: reduce > reduce
> 10/11/05 15:44:59 INFO mapred.JobClient: map 100% reduce 74%
> 10/11/05 15:45:08 INFO file.FileDataModel: Processed 1000000 lines
> 10/11/05 15:45:08 INFO file.FileDataModel: Read lines: 1000209
> 10/11/05 15:45:11 INFO model.GenericDataModel: Processed 6040 users
> 10/11/05 15:45:11 WARN mapred.LocalJobRunner: job_local_0001
> java.lang.IllegalStateException: java.lang.ClassNotFoundException:
> org.apache.mahout.cf.taste.example.grouplens.GroupLensRecommender
>