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From Gustavo Enrique Salazar Torres <gsala...@ime.usp.br>
Subject Re: Mahout Kmeans
Date Sat, 08 Sep 2012 04:10:34 GMT
Nevermind, got it to work, had to fix the script though.

Thanks.
Gustavo

On Fri, Sep 7, 2012 at 5:54 PM, Gustavo Enrique Salazar Torres <
gsalazar@ime.usp.br> wrote:

> Hi there:
>
> I'm trying to finish an improvement to the Kmeans algorithm but I first
> need to get it run in order to compare results.
> But running the cluster-reuters.sh script I get this error:
>
> MAHOUT_LOCAL is not set; adding HADOOP_CONF_DIR to classpath.
> Running on hadoop, using /home/gustavo/Desktop/yandex_data/hadoop-
> 0.20.203.0/bin/hadoop and
> HADOOP_CONF_DIR=/home/gustavo/Desktop/yandex_data/hadoop-0.20.203.0/conf
> MAHOUT-JOB:
> /home/gustavo/Desktop/yandex_data/mahout-distribution-0.7/mahout-examples-0.7-job.jar
> 12/09/07 17:47:43 INFO common.AbstractJob: Command line arguments:
> {--clustering=null, --clusters=[./reuters-kmeans-clusters],
> --convergenceDelta=[0.5],
> --distanceMeasure=[org.apache.mahout.common.distance.CosineDistanceMeasure],
> --endPhase=[2147483647],
> --input=[./reuters_out_seqdir_kmeans/tfidf-vectors], --maxIter=[10],
> --method=[mapreduce], --numClusters=[20], --output=[./reuters-kmeans],
> --overwrite=null, --startPhase=[0], --tempDir=[temp]}
> 12/09/07 17:47:44 INFO common.HadoopUtil: Deleting reuters-kmeans-clusters
> 12/09/07 17:47:44 INFO util.NativeCodeLoader: Loaded the native-hadoop
> library
> 12/09/07 17:47:44 INFO zlib.ZlibFactory: Successfully loaded & initialized
> native-zlib library
> 12/09/07 17:47:44 INFO compress.CodecPool: Got brand-new compressor
> 12/09/07 17:47:44 INFO kmeans.RandomSeedGenerator: Wrote 20 Klusters to
> reuters-kmeans-clusters/part-randomSeed
> 12/09/07 17:47:44 INFO kmeans.KMeansDriver: Input:
> reuters_out_seqdir_kmeans/tfidf-vectors Clusters In:
> reuters-kmeans-clusters/part-randomSeed Out: reuters-kmeans Distance:
> org.apache.mahout.common.distance.CosineDistanceMeasure
> 12/09/07 17:47:44 INFO kmeans.KMeansDriver: convergence: 0.5 max
> Iterations: 10 num Reduce Tasks: org.apache.mahout.math.VectorWritable
> Input Vectors: {}
> 12/09/07 17:47:44 INFO compress.CodecPool: Got brand-new decompressor
> Exception in thread "main" java.lang.IllegalStateException: No input
> clusters found in reuters-kmeans-clusters/part-randomSeed. Check your -c
> argument.
> at
> org.apache.mahout.clustering.kmeans.KMeansDriver.buildClusters(KMeansDriver.java:218)
>
> As you can see the initial clusters are being created but for a reason I
> don't understand why they are being found.
> Below is the 'cat' command on the part file containing clusters:
>
> $ dfs -cat reuters-kmeans-clusters/part-randomSeed
> SEQ
> org.apache.hadoop.io.Text5org.apache.mahout.clustering.iterator.ClusterWritable
> *org.apache.hadoop.io.compress.DefaultCodec b�W3 K�E�߇H��Vgustavo
>
> Can anyone help me please?
>
> Thanks
> Gustavo Salazar
>

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