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From Jake Mannix <jake.man...@gmail.com>
Subject Re: Interpretating doc-topic output of cvb
Date Mon, 24 Jun 2013 19:37:49 GMT
Ok, I'll have to look into this, because the last time I modified
CVB0Driver etc, I specifically tested it against cluster_reuters.sh, and it
did exactly what was expected (after having been broken for a while, at
least the doc-topic output part).


On Mon, Jun 24, 2013 at 10:05 AM, Suneel Marthi <suneel_marthi@yahoo.com>wrote:

> I have been seeing a similar error (running against trunk) when running
> cluster_reuters.sh  (with CVB clustering).  It complains that "Output
> directory: /reuters-lda already exists".
>
> This was working fine a few weeks ago, not sure which of the intermediate
> code changes against CVB0Driver, or CVB0DocInferenceMapper could be causing
> this to happen now.
>
>
>
>
>
> ________________________________
>  From: Mark Wicks <mawicks@gmail.com>
> To: user@mahout.apache.org
> Sent: Monday, June 24, 2013 12:57 PM
> Subject: Re: Interpretating doc-topic output of cvb
>
>
> Thanks for the response.
>
> The command line I used is
>
> mahout cvb -ow -dict sparse/dictionary.file-0 -i matrix/matrix -o
> cvb/topics -dt cvb/classifications  -block 2 -x 2 -cd 1e-10  -k2
> -seed 6956 -tf 0.25
>
> This completes with no errors in Mahout 0.7.  With Mahout/cvb from trunk I
> get:
>
> 13/06/24 12:48:32 INFO cvb.CVB0Driver: About to run: Writing final
> topic/term distributions from temp/topicModelState/model-2 to
> cvb/topics
> 13/06/24 12:48:32 INFO input.FileInputFormat: Total input paths to process
> : 10
> 13/06/24 12:48:33 INFO cvb.CVB0Driver: About to run: Writing final
> document/topic inference from matrix/matrix to cvb/classifications
> 13/06/24 12:48:33 INFO mapred.JobClient: Cleaning up the staging area
> hdfs://
> 192.168.84.8:9000/tmp/hadoop-hadoop/mapred/staging/mwicks/.staging/job_201304292057_0252
> 13/06/24 12:48:33 ERROR security.UserGroupInformation:
> PriviledgedActionException as:mwicks
> cause:org.apache.hadoop.mapred.FileAlreadyExistsException: Output
> directory cvb/topics already exists
> Exception in thread "main"
> org.apache.hadoop.mapred.FileAlreadyExistsException: Output directory
> cvb/topics already exists
>         at
> org.apache.hadoop.mapreduce.lib.output.FileOutputFormat.checkOutputSpecs(FileOutputFormat.java:137)
>         at org.apache.hadoop.mapred.JobClient$2.run(JobClient.java:949)
>         at org.apache.hadoop.mapred.JobClient$2.run(JobClient.java:912)
>         at java.security.AccessController.doPrivileged(Native Method)
>         at javax.security.auth.Subject.doAs(Subject.java:415)
>         at
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1149)
>         at
> org.apache.hadoop.mapred.JobClient.submitJobInternal(JobClient.java:912)
>         at org.apache.hadoop.mapreduce.Job.submit(Job.java:500)
>         at
> org.apache.mahout.clustering.lda.cvb.CVB0Driver.writeDocTopicInference(CVB0Driver.java:463)
>         at
> org.apache.mahout.clustering.lda.cvb.CVB0Driver.run(CVB0Driver.java:339)
>         at
> org.apache.mahout.clustering.lda.cvb.CVB0Driver.run(CVB0Driver.java:198)
>         at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
>         at
> org.apache.mahout.clustering.lda.cvb.CVB0Driver.main(CVB0Driver.java:534)
>         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>         at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
>         at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>         at java.lang.reflect.Method.invoke(Method.java:601)
>         at
> org.apache.hadoop.util.ProgramDriver$ProgramDescription.invoke(ProgramDriver.java:68)
>         at
> org.apache.hadoop.util.ProgramDriver.driver(ProgramDriver.java:139)
>         at
> org.apache.mahout.driver.MahoutDriver.main(MahoutDriver.java:195)
>         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>         at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
>         at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>         at java.lang.reflect.Method.invoke(Method.java:601)
>         at org.apache.hadoop.util.RunJar.main(RunJar.java:156)
>
>
> I am certain that "cvb/topics" did not exist before running "mahout
> cvb".  After the error, cvb/topics exists and contains data, but
> cvb/classifications does not exist.
>
> Mark
>



-- 

  -jake

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