A-ha. It's trying to execute a command called chmod that is a standard Unix/Linux/OS X command but not present on Windows.
I am not sure why Hadoop tries this on Windows though... surely it supports Windows? I somehow think we've seen this before and I forget what the story was. It's not something to do with Mahout unfortunately. One possible solution is to install Cygwin, which gives you a little Unix-like environment on Windows. It has a chmod binary. Running via Cygwin might work. On Thu, Apr 1, 2010 at 6:46 PM, Eleftherios Spyromitros <espyr...@csd.auth.gr> wrote: > OK guys you are being very helpful. Here is an error file > (I think that most if not all error files complain about chmod.. > does this have to do with admin privilages??): > > ------------------------------------------------------------------------------- > Test set: org.apache.mahout.fpm.pfpgrowth.PFPGrowthTest > ------------------------------------------------------------------------------- > Tests run: 3, Failures: 1, Errors: 2, Skipped: 0, Time elapsed: 0.14 sec <<< > FAILURE! > testStartParallelCounting(org.apache.mahout.fpm.pfpgrowth.PFPGrowthTest) > Time elapsed: 0.063 sec <<< ERROR! > java.io.IOException: Cannot run program "chmod": CreateProcess error=2, The > system cannot find the file specified > at java.lang.ProcessBuilder.start(ProcessBuilder.java:460) > at org.apache.hadoop.util.Shell.runCommand(Shell.java:149) > at org.apache.hadoop.util.Shell.run(Shell.java:134) > at > org.apache.hadoop.util.Shell$ShellCommandExecutor.execute(Shell.java:286) > at org.apache.hadoop.util.Shell.execCommand(Shell.java:354) > at org.apache.hadoop.util.Shell.execCommand(Shell.java:337) > at > org.apache.hadoop.fs.RawLocalFileSystem.execCommand(RawLocalFileSystem.java:481) > at > org.apache.hadoop.fs.RawLocalFileSystem.setPermission(RawLocalFileSystem.java:473) > at > org.apache.hadoop.fs.FilterFileSystem.setPermission(FilterFileSystem.java:280) > at org.apache.hadoop.fs.FileSystem.mkdirs(FileSystem.java:266) > at > org.apache.hadoop.mapred.JobClient.configureCommandLineOptions(JobClient.java:573) > at > org.apache.hadoop.mapred.JobClient.submitJobInternal(JobClient.java:761) > at org.apache.hadoop.mapreduce.Job.submit(Job.java:432) > at org.apache.hadoop.mapreduce.Job.waitForCompletion(Job.java:447) > at > org.apache.mahout.fpm.pfpgrowth.PFPGrowth.startParallelCounting(PFPGrowth.java:318) > at > org.apache.mahout.fpm.pfpgrowth.PFPGrowthTest.testStartParallelCounting(PFPGrowthTest.java:89) > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) > at java.lang.reflect.Method.invoke(Method.java:597) > at junit.framework.TestCase.runTest(TestCase.java:168) > at junit.framework.TestCase.runBare(TestCase.java:134) > at junit.framework.TestResult$1.protect(TestResult.java:110) > at junit.framework.TestResult.runProtected(TestResult.java:128) > at junit.framework.TestResult.run(TestResult.java:113) > at junit.framework.TestCase.run(TestCase.java:124) > at junit.framework.TestSuite.runTest(TestSuite.java:232) > at junit.framework.TestSuite.run(TestSuite.java:227) > at > org.junit.internal.runners.JUnit38ClassRunner.run(JUnit38ClassRunner.java:83) > at > org.apache.maven.surefire.junit4.JUnit4TestSet.execute(JUnit4TestSet.java:59) > at > org.apache.maven.surefire.suite.AbstractDirectoryTestSuite.executeTestSet(AbstractDirectoryTestSuite.java:115) > at > org.apache.maven.surefire.suite.AbstractDirectoryTestSuite.execute(AbstractDirectoryTestSuite.java:102) > at org.apache.maven.surefire.Surefire.run(Surefire.java:180) > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) > at java.lang.reflect.Method.invoke(Method.java:597) > at > org.apache.maven.surefire.booter.SurefireBooter.runSuitesInProcess(SurefireBooter.java:350) > at > org.apache.maven.surefire.booter.SurefireBooter.main(SurefireBooter.java:1021) > Caused by: java.io.IOException: CreateProcess error=2, The system cannot find > the file specified > at java.lang.ProcessImpl.create(Native Method) > at java.lang.ProcessImpl.<init>(ProcessImpl.java:81) > at java.lang.ProcessImpl.start(ProcessImpl.java:30) > at java.lang.ProcessBuilder.start(ProcessBuilder.java:453) > ... 38 more
