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From Dmitriy Lyubimov <dlie...@gmail.com>
Subject Re: SSVD error
Date Sat, 01 Sep 2012 17:11:37 GMT
Another guess i have is that perhaps you used relative paths when
specifying temp dir? Try to use absoute paths.
On Sep 1, 2012 10:09 AM, "Pat Ferrel" <pat.ferrel@gmail.com> wrote:

> Yes, I understand why #2 failed. I guess I'm asking how to get this to
> succeed. Without a way to run SSVD single threaded it's hard to debug my
> surrounding code.
>
> I am gathering a larger crawl, maybe that will work.
>
> On Sep 1, 2012, at 8:39 AM, Ted Dunning <ted.dunning@gmail.com> wrote:
>
> Regardless of confusion between k and p (I was confused as well) you still
> can't set the sum to more than the minimum size of your data.  Here you
> have set it larger.  And it breaks.
>
> On Sat, Sep 1, 2012 at 11:09 AM, Pat Ferrel <pat.ferrel@gmail.com> wrote:
>
> > Oh, sorry, below I meant to say k (the number to reduce to) not p.
> >
> > In both cases p = 1, the first case k = 20, the second case k =100
> >
> > Also the first error does seem to be running with local hadoop. The error
> > is from looking for a temp file that does exist in the file system, but
> not
> > in the hadoop tmp based files.
> >
> >
> > On Sep 1, 2012, at 7:53 AM, Ted Dunning <ted.dunning@gmail.com> wrote:
> >
> > With 57 crawled docs, you can't reasonably set p > 57.  That is your
> second
> > error.
> >
> > On Sat, Sep 1, 2012 at 10:32 AM, Pat Ferrel <pat.ferrel@gmail.com>
> wrote:
> >
> >> I have a small data set that I am using in local mode for debugging
> >> purposes. The data is 57 crawled docs with something like 2200 terms. I
> > run
> >> this through seq2sparse, then my own cloned version of rowid to get a
> >> distributed row matrix, then into SSVD. I realize this is not a
> > production
> >> environment, but you need to debug somewhere and single threaded
> > execution
> >> is ideal for debugging. As I said this works in hadoop clustered mode.
> >>
> >> The error looks like some code is expecting hdfs to be running, no? Here
> >> is the exception stack from the ide with p = 20:
> >>
> >> 12/09/01 07:22:55 WARN mapred.LocalJobRunner: job_local_0002
> >> java.io.FileNotFoundException: File
> >>
> >
> /tmp/hadoop-pat/mapred/local/archive/6590995089539988730_1587570556_37122331/file/Users/pat/Projects/big-data/b/ssvd/Q-job/R-m-00000
> >> does not exist.
> >>       at
> >>
> >
> org.apache.hadoop.fs.RawLocalFileSystem.getFileStatus(RawLocalFileSystem.java:371)
> >>       at
> >>
> >
> org.apache.hadoop.fs.FilterFileSystem.getFileStatus(FilterFileSystem.java:245)
> >>       at
> >>
> >
> org.apache.mahout.common.iterator.sequencefile.SequenceFileDirValueIterator.<init>(SequenceFileDirValueIterator.java:92)
> >>       at
> >>
> >
> org.apache.mahout.math.hadoop.stochasticsvd.BtJob$BtMapper.setup(BtJob.java:219)
> >>       at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:142)
> >>       at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:764)
> >>       at org.apache.hadoop.mapred.MapTask.run(MapTask.java:370)
> >>       at
> >> org.apache.hadoop.mapred.LocalJobRunner$Job.run(LocalJobRunner.java:212)
> >> Exception in thread "main" java.io.IOException: Bt job unsuccessful.
> >>       at
> >> org.apache.mahout.math.hadoop.stochasticsvd.BtJob.run(BtJob.java:609)
> >>       at
> >>
> >
> org.apache.mahout.math.hadoop.stochasticsvd.SSVDSolver.run(SSVDSolver.java:397)
> >>       at
> >>
> >
> com.finderbots.analysis.AnalysisPipeline.SSVDTransformAndBack(AnalysisPipeline.java:257)
> >>       at com.finderbots.analysis.AnalysisJob.run(AnalysisJob.java:20)
> >>       at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
> >>       at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:79)
> >> Disconnected from the target VM, address: '127.0.0.1:54588', transport:
> >> 'socket'
> >>       at com.finderbots.analysis.AnalysisJob.main(AnalysisJob.java:34)
> >>
> >> Process finished with exit code 1
> >>
> >> With p=100-200 I get the following:
> >>
> >> 12/09/01 07:30:33 ERROR common.IOUtils: new m can't be less than n
> >> java.lang.IllegalArgumentException: new m can't be less than n
> >>       at
> >>
> >
> org.apache.mahout.math.hadoop.stochasticsvd.qr.GivensThinSolver.adjust(GivensThinSolver.java:109)
> >>       at
> >>
> >
> org.apache.mahout.math.hadoop.stochasticsvd.qr.QRFirstStep.cleanup(QRFirstStep.java:233)
> >>       at
> >>
> >
> org.apache.mahout.math.hadoop.stochasticsvd.qr.QRFirstStep.close(QRFirstStep.java:89)
> >>       at org.apache.mahout.common.IOUtils.close(IOUtils.java:128)
> >>       at
> >>
> >
> org.apache.mahout.math.hadoop.stochasticsvd.QJob$QMapper.cleanup(QJob.java:158)
> >>       at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:146)
> >>       at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:764)
> >>       at org.apache.hadoop.mapred.MapTask.run(MapTask.java:370)
> >>       at
> >> org.apache.hadoop.mapred.LocalJobRunner$Job.run(LocalJobRunner.java:212)
> >> 12/09/01 07:30:33 WARN mapred.LocalJobRunner: job_local_0001
> >> java.lang.IllegalArgumentException: new m can't be less than n
> >>       at
> >>
> >
> org.apache.mahout.math.hadoop.stochasticsvd.qr.GivensThinSolver.adjust(GivensThinSolver.java:109)
> >>       at
> >>
> >
> org.apache.mahout.math.hadoop.stochasticsvd.qr.QRFirstStep.cleanup(QRFirstStep.java:233)
> >>       at
> >>
> >
> org.apache.mahout.math.hadoop.stochasticsvd.qr.QRFirstStep.close(QRFirstStep.java:89)
> >>       at org.apache.mahout.common.IOUtils.close(IOUtils.java:128)
> >>       at
> >>
> >
> org.apache.mahout.math.hadoop.stochasticsvd.QJob$QMapper.cleanup(QJob.java:158)
> >>       at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:146)
> >>       at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:764)
> >>       at org.apache.hadoop.mapred.MapTask.run(MapTask.java:370)
> >>       at
> >> org.apache.hadoop.mapred.LocalJobRunner$Job.run(LocalJobRunner.java:212)
> >> Exception in thread "main" java.io.IOException: Q job unsuccessful.
> >>       at
> >> org.apache.mahout.math.hadoop.stochasticsvd.QJob.run(QJob.java:230)
> >>       at
> >>
> >
> org.apache.mahout.math.hadoop.stochasticsvd.SSVDSolver.run(SSVDSolver.java:376)
> >>       at
> >>
> >
> com.finderbots.analysis.AnalysisPipeline.SSVDTransformAndBack(AnalysisPipeline.java:257)
> >>       at com.finderbots.analysis.AnalysisJob.run(AnalysisJob.java:20)
> >>       at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
> >>       at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:79)
> >>       at com.finderbots.analysis.AnalysisJob.main(AnalysisJob.java:34)
> >> Disconnected from the target VM, address: '127.0.0.1:54614', transport:
> >> 'socket'
> >>
> >> Process finished with exit code 1
> >>
> >>
> >>
> >>
> >> On Aug 31, 2012, at 4:21 PM, Dmitriy Lyubimov <dlieu.7@gmail.com>
> wrote:
> >>
> >> Perhaps if you give more info about the stack etc. i might get a
> >> better idea though
> >>
> >> On Fri, Aug 31, 2012 at 4:19 PM, Dmitriy Lyubimov <dlieu.7@gmail.com>
> >> wrote:
> >>> I am not sure, i haven't used it that way.
> >>>
> >>> I know it works fully distributed AND when embedded with local job
> >>> tracker (e.g. its tests are basically MR jobs with "local" job
> >>> tracker) which probably is not the same as Mahout local mode.  "local"
> >>> job tracker is not good for much though: thus it doesn't use even
> >>> multicore parallelism as it doesn't support multiple reducers, so this
> >>> code is kind of for a real cluster really, pragmatically. There's also
> >>> Ted's implementation of non-distributed SSVD in Mahout which does not
> >>> require Hadoop dependencies but it is a different api with no PCA
> >>> option (not sure about power iterations).
> >>>
> >>> I am not sure why this very particular error appears in your setup.
> >>>
> >>> On Fri, Aug 31, 2012 at 3:02 PM, Pat Ferrel <pat.ferrel@gmail.com>
> >> wrote:
> >>>> Running on the local file system inside IDEA with MAHOUT_LOCAL set and
> >> performing an SSVD I get the error below. Notice that R-m-00000 exists
> in
> >> the local file system and running it outside the debugger in
> > pseudo-cluster
> >> mode with HDFS works. Does SSVD work in local mode?
> >>>>
> >>>> java.io.FileNotFoundException: File
> >>
> >
> /tmp/hadoop-pat/mapred/local/archive/5543644668644532045_1587570556_2120541978/file/Users/pat/Projects/big-data/b/ssvd/Q-job/R-m-00000
> >> does not exist.
> >>>>
> >>>> Maclaurin:big-data pat$ ls -al b/ssvd/Q-job/
> >>>> total 72
> >>>> drwxr-xr-x  10 pat  staff   340 Aug 31 13:35 .
> >>>> drwxr-xr-x   4 pat  staff   136 Aug 31 13:35 ..
> >>>> -rw-r--r--   1 pat  staff    80 Aug 31 13:35 .QHat-m-00000.crc
> >>>> -rw-r--r--   1 pat  staff    28 Aug 31 13:35 .R-m-00000.crc
> >>>> -rw-r--r--   1 pat  staff     8 Aug 31 13:35 ._SUCCESS.crc
> >>>> -rw-r--r--   1 pat  staff    12 Aug 31 13:35 .part-m-00000.deflate.crc
> >>>> -rwxrwxrwx   1 pat  staff  9154 Aug 31 13:35 QHat-m-00000
> >>>> -rwxrwxrwx   1 pat  staff  2061 Aug 31 13:35 R-m-00000
> >>>> -rwxrwxrwx   1 pat  staff     0 Aug 31 13:35 _SUCCESS
> >>>> -rwxrwxrwx   1 pat  staff     8 Aug 31 13:35 part-m-00000.deflate
> >>>>
> >>
> >>
> >
> >
>
>

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