chmod is used on linux to change the file permissions. It seems like hadoop links your on linux.
What command are you running to get this error ? Aaron On 2 Dec 2010, at 21:03, Bingbing Liu wrote: > i use the same configuration in eclispe both on windows and linux , on linux > ,it goes well, but on windows , it fails > > here is the exception information: > > > 10/12/02 10:53:40 INFO mapreduce.MRSelect: output reducer type: filesystem > 10/12/02 10:53:40 INFO jvm.JvmMetrics: Initializing JVM Metrics with > processName=JobTracker, sessionId= > Exception in thread "main" java.io.IOException: Cannot run program "chmod": > CreateProcess error=2, ϵͳÕҲ»µ½ָ¶ > at java.lang.ProcessBuilder.start(Unknown Source) > 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:261) > 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.clouddb.cassandra.mapreduce.MRSelect.run(MRSelect.java:209) > at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65) > at org.clouddb.cassandra.mapreduce.MRSelect.main(MRSelect.java:54) > Caused by: java.io.IOException: CreateProcess error=2, ϵͳÕҲ»µ½ָ¶ > at java.lang.ProcessImpl.create(Native Method) > at java.lang.ProcessImpl.<init>(Unknown Source) > at java.lang.ProcessImpl.start(Unknown Source) > ... 17 more > > 2010-12-02 > Bingbing Liu > 发件人： Jeremy Hanna > 发送时间： 2010-12-02 11:13:04 > 收件人： user > 抄送： > 主题： Re: how can i ran the word count example on windows? > There isn't currently, but perhaps you could contribute one :). If you take > a look at the sh script in the bin directory of the word count example, it > shouldn't be terribly difficult to mimic the behavior. It's mostly just > setting up the classpath and executing the Java class with some arguments. > > On Dec 1, 2010, at 8:26 PM, Bingbing Liu wrote: > >> i don't know how to set the command line >> >> is there a word_count.bat ? like the word_count in the bin on linux? >> >> 2010-12-02 >> Bingbing Liu > >
