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Posted to common-issues@hadoop.apache.org by "Gera Shegalov (JIRA)" <ji...@apache.org> on 2013/12/27 01:59:50 UTC

[jira] [Created] (HADOOP-10191) Missing executable permission on viewfs internal dirs

Gera Shegalov created HADOOP-10191:
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             Summary: Missing executable permission on viewfs internal dirs
                 Key: HADOOP-10191
                 URL: https://issues.apache.org/jira/browse/HADOOP-10191
             Project: Hadoop Common
          Issue Type: Bug
          Components: viewfs
            Reporter: Gera Shegalov


ViewFileSystem allows 1) unconditional listing of internal directories (mount points) and 2) and changing work directories.

1) requires read permission
2) requires executable permission

However, the hardcoded PERMISSION_RRR == 444 for FileStatus representing an internal dir does not have executable bit set.

This confuses YARN localizer for public resources on viewfs because it requires executable permission for "other" on all of the ancestor directories of the resource. 

{code}
java.io.IOException: Resource viewfs:/pubcache/cache.txt is not publicly accessable and as such cannot be part of the public cache.
        at org.apache.hadoop.yarn.util.FSDownload.copy(FSDownload.java:182)
        at org.apache.hadoop.yarn.util.FSDownload.access$000(FSDownload.java:51)
        at org.apache.hadoop.yarn.util.FSDownload$1.run(FSDownload.java:279)
        at org.apache.hadoop.yarn.util.FSDownload$1.run(FSDownload.java:277)
{code}



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