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From "Gera Shegalov (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HADOOP-10191) Missing executable permission on viewfs internal dirs
Date Fri, 27 Dec 2013 00:59:50 GMT
Gera Shegalov created HADOOP-10191:

             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. 

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)

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