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From "Daryn Sharp (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HADOOP-10942) Globbing optimizations and regression fix
Date Wed, 06 Aug 2014 22:05:13 GMT
Daryn Sharp created HADOOP-10942:
------------------------------------

             Summary: Globbing optimizations and regression fix
                 Key: HADOOP-10942
                 URL: https://issues.apache.org/jira/browse/HADOOP-10942
             Project: Hadoop Common
          Issue Type: Bug
          Components: fs
    Affects Versions: 2.1.0-beta, 3.0.0
            Reporter: Daryn Sharp
            Assignee: Daryn Sharp
            Priority: Critical


When globbing was commonized to support both filesystem and filecontext, it regressed a fix
that prevents an intermediate glob that matches a file from throwing a confusing permissions
exception.  The hdfs traverse check requires the exec bit which a file does not have.

Additional optimizations to reduce rpcs actually increases them if directories contain 1 item.



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