|
在window eclipse上测试hadoop 程序时，出现不能执行chmod问题。
需要安装cygwin程序：点击下载x64 cygwin
具体安装步骤，网上很多文章有介绍了。
错误如下：
15/04/19 14:41:29 INFO jvm.JvmMetrics: Initializing JVM Metrics with processName=JobTracker, sessionId=
15/04/19 14:41:29 WARN mapred.JobClient: Use GenericOptionsParser for parsing the arguments. Applications should implement Tool for the same.
Exception in thread "main" java.io.IOException: <strong><span style="color:#ff0000;background-color: rgb(255, 255, 255);">Cannot run program "chmod": CreateProcess error=2, ?????????</span></strong>
at java.lang.ProcessBuilder.start(ProcessBuilder.java:1041)
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 com.billstudy.hdfs.WordCount.main(WordCount.java:51)
Caused by: java.io.IOException: CreateProcess error=2, ?????????
at java.lang.ProcessImpl.create(Native Method)
at java.lang.ProcessImpl.<init>(ProcessImpl.java:376)
at java.lang.ProcessImpl.start(ProcessImpl.java:136)
at java.lang.ProcessBuilder.start(ProcessBuilder.java:1022)
... 14 more
解决问题步骤如下：
1.安装cygwin
2.将按照目录 cygwin安装目录/bin 设置到机器环境变量里面 ， 和Java的环境配置类似。
| 
转播
