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From "Tsz Wo (Nicholas), SZE (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-3182) JobClient creates submitJobDir with SYSTEM_DIR_PERMISSION ( rwx-wx-wx)
Date Sat, 05 Apr 2008 02:49:24 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-3182?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12585877#action_12585877
] 

Tsz Wo (Nicholas), SZE commented on HADOOP-3182:
------------------------------------------------

Below are some codes found in TaskTracker:
{code}
  private void localizeJob(TaskInProgress tip) throws IOException {
    ...
    FileStatus status[] = fileSystem.listStatus(new Path(jobFile).getParent());
    ...
    for(FileStatus stat : status) {
      if (stat.getPath().toString().contains("job.xml")) {
        ...
      }
      if (stat.getPath().toString().contains("job.jar")) {
        ...
      }
    }
    ...
  }
{code}
Why it first gets all FileStatus and then does a linear search for the path containing "job.xml"
and "job.jar"? It seems to me that the paths can be constructed directly from <job-dir>/job.xml
and <job-dir>/job.jar

> JobClient creates submitJobDir with SYSTEM_DIR_PERMISSION ( rwx-wx-wx)
> ----------------------------------------------------------------------
>
>                 Key: HADOOP-3182
>                 URL: https://issues.apache.org/jira/browse/HADOOP-3182
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: mapred
>    Affects Versions: 0.16.2
>            Reporter: lohit vijayarenu
>            Assignee: Tsz Wo (Nicholas), SZE
>            Priority: Blocker
>             Fix For: 0.16.3, 0.17.0
>
>
> JobClient creates submitJobDir with SYSTEM_DIR_PERMISSION ( rwx-wx-wx ) which causes
problem while sharing a cluster.
> Consider the case where userA starts jobtracker/tasktrackers and userB submits a job
to this cluster. When userB creates submitJobDir it is created with rwx-wx-wx which cannot
be read by tasktracker started by userA

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