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From "Vijaya Phanindra (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-7682) taskTracker could not start because "Failed to set permissions" to "ttprivate to 0700"
Date Thu, 29 Dec 2011 02:07:30 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-7682?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13176945#comment-13176945
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Vijaya Phanindra commented on HADOOP-7682:
------------------------------------------

The problem seems to exists for release 1.0.0 also. Works fine if downgraded to 0.20.2

java.io.IOException: Failed to set permissions of path: \tmp\hadoop-UserName\mapred\staging\UserName-1687815415\.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:509)
        at org.apache.hadoop.fs.RawLocalFileSystem.mkdirs(RawLocalFileSystem.java:344)
        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:856)
        at org.apache.hadoop.mapred.JobClient$2.run(JobClient.java:850)
        at java.security.AccessController.doPrivileged(Native Method)
        at javax.security.auth.Subject.doAs(Subject.java:396)
        at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1083)
        at org.apache.hadoop.mapred.JobClient.submitJobInternal(JobClient.java:850)
        at org.apache.hadoop.mapred.JobClient.submitJob(JobClient.java:824)
        at org.apache.hadoop.mapred.JobClient.runJob(JobClient.java:1261)
        at org.apache.hadoop.examples.Grep.run(Grep.java:69)
        at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
        at org.apache.hadoop.examples.Grep.main(Grep.java:93)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at org.apache.hadoop.util.ProgramDriver$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:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at org.apache.hadoop.util.RunJar.main(RunJar.java:156)
                
> taskTracker could not start because "Failed to set permissions" to "ttprivate to 0700"
> --------------------------------------------------------------------------------------
>
>                 Key: HADOOP-7682
>                 URL: https://issues.apache.org/jira/browse/HADOOP-7682
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: fs
>    Affects Versions: 0.20.203.0
>         Environment: OS:WindowsXP SP3 , Filesystem :NTFS, cygwin 1.7.9-1, jdk1.6.0_05
>            Reporter: Magic Xie
>
> ERROR org.apache.hadoop.mapred.TaskTracker:Can not start task tracker because java.io.IOException:Failed
to set permissions of path:/tmp/hadoop-cyg_server/mapred/local/ttprivate to 0700
>     at org.apache.hadoop.fs.RawLocalFileSystem.checkReturnValue(RawLocalFileSystem.java:525)
>     at org.apache.hadoop.fs.RawLocalFileSystem.setPermission(RawLocalFileSystem.java:499)
>     at org.apache.hadoop.fs.RawLocalFileSystem.mkdirs(RawLocalFileSystem.java:318)
>     at org.apache.hadoop.fs.FilterFileSystem.mkdirs(FilterFileSystem.java:183)
>     at org.apache.hadoop.mapred.TaskTracker.initialize(TaskTracker.java:635)
>     at org.apache.hadoop.mapred.TaskTracker.(TaskTracker.java:1328)
>     at org.apache.hadoop.mapred.TaskTracker.main(TaskTracker.java:3430)
> Since hadoop0.20.203 when the TaskTracker initialize, it checks the permission(TaskTracker
Line 624) of (org.apache.hadoop.mapred.TaskTracker.TT_LOG_TMP_DIR,org.apache.hadoop.mapred.TaskTracker.TT_PRIVATE_DIR,
org.apache.hadoop.mapred.TaskTracker.TT_PRIVATE_DIR).RawLocalFileSystem(http://svn.apache.org/viewvc/hadoop/common/tags/release-0.20.203.0/src/core/org/apache/hadoop/fs/RawLocalFileSystem.java?view=markup)
call setPermission(Line 481) to deal with it, setPermission works fine on *nx, however,it
dose not alway works on windows.
> setPermission call setReadable of Java.io.File in the line 498, but according to the
Table1 below provided by oracle,setReadable(false) will always return false on windows, the
same as setExecutable(false).
> http://java.sun.com/developer/technicalArticles/J2SE/Desktop/javase6/enhancements/
> is it cause the task tracker "Failed to set permissions" to "ttprivate to 0700"?
> Hadoop 0.20.202 works fine in the same environment. 

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