我只是試圖讓Hadoop在運行64位Windows 7的筆記本電腦上以獨立模式運行。我已經在默認文件夾(c:\ cygwin)中安裝了Cygwin 1.7。我在文件夾c:\ jdk1.7.0_03中擁有最新的JDK,並設置了JAVA_HOME環境變量。問題在cygwin中運行簡單的map-reduce hadoop示例
,當我嘗試從一個cygwin提示符下鍵入以下命令:
$ bin/hadoop jar hadoop-examples-*.jar grep input output 'dfs[a-z.]+'
這裏的錯誤,我得到:
12/03/17 19:08:43 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
java.io.IOException: Failed to set permissions of path: \tmp\hadoop-ehtzrhf\mapred\staging\ehtzrhf837602798\.staging to 0700
at org.apache.hadoop.fs.FileUtil.checkReturnValue(FileUtil.java:682)
at org.apache.hadoop.fs.FileUtil.setPermission(FileUtil.java:655)
at org.apache.hadoop.fs.RawLocalFileSystem.setPermission(RawLocalFileSystem.java:484)
at org.apache.hadoop.fs.RawLocalFileSystem.mkdirs(RawLocalFileSystem.java:319)
at org.apache.hadoop.fs.FilterFileSystem.mkdirs(FilterFileSystem.java:189)
at org.apache.hadoop.mapreduce.JobSubmissionFiles.getStagingDir(JobSubmissionFiles.java:116)
at org.apache.hadoop.mapred.JobClient$2.run(JobClient.java:848)
at org.apache.hadoop.mapred.JobClient$2.run(JobClient.java:842)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:415)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1059)
at org.apache.hadoop.mapred.JobClient.submitJobInternal(JobClient.java:842)
at org.apache.hadoop.mapred.JobClient.submitJob(JobClient.java:816)
at org.apache.hadoop.mapred.JobClient.runJob(JobClient.java:1253)
at org.apache.hadoop.examples.Grep.run(Grep.java:69)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
at org.apache.hadoop.examples.Grep.main(Grep.java:93)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at org.apache.hadoop.util.ProgramDriver$ProgramDescription.invoke(ProgramDriver.java:68)
at org.apache.hadoop.util.ProgramDriver.driver(ProgramDriver.java:139)
at org.apache.hadoop.examples.ExampleDriver.main(ExampleDriver.java:64)
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)
我既Hadoop的1.0.1也Hadoop的嘗試-0.20.205.0並得到相同的問題。我已經更新了我的.bashrc與
export TMP=/cygdrive/c/temp
export TEMP=/cygdrive/c/temp
我還添加了Cygwin的bin文件夾的路徑:
export PATH=.:/cygdrive/c/cygwin/bin:$HADOOP_INSTALL/bin
我也覺得很奇怪它顯示的路徑\ tmp中...而不是/ tmp/...
缺乏重新編譯或運行Linux VM的想法嗎?
順便說一句,用相同的設置同上,但使用Hadoop 0.20.2,我不知道碰到這個。 – dplante 2012-03-18 04:15:47
是的,我昨天也遇到了這個。如果有人修復它,我會很高興。 +1 – 2012-03-18 08:57:32