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From "Daryn Sharp (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-8906) paths with multiple globs are unreliable
Date Thu, 11 Oct 2012 01:13:04 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-8906?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Daryn Sharp updated HADOOP-8906:
--------------------------------

    Attachment: HADOOP-8906.patch

A Path from Path.CUR_DIR is internally an empty string, which the Path ctors won't allow so
had to ensure to use Path.CUR_DIR when the path is empty.

Fixed issue where globbing failed unexpectedly when the starting directory doesn't exist -
ex. relative path and home dir doesn't exist.  Added exception handler.  Had to pre-compute
if globs are present before attempting lookup in order to return the correct value.

                
> paths with multiple globs are unreliable
> ----------------------------------------
>
>                 Key: HADOOP-8906
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8906
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: fs
>    Affects Versions: 0.23.0, 2.0.0-alpha, 3.0.0
>            Reporter: Daryn Sharp
>            Assignee: Daryn Sharp
>            Priority: Critical
>         Attachments: HADOOP-8906.patch, HADOOP-8906.patch, HADOOP-8906.patch, HADOOP-8906.patch
>
>
> Let's say we have have a structure of "$date/$user/stuff/file".  Multiple globs are unreliable
unless every directory in the structure exists.
> These work:
> date*/user
> date*/user/stuff
> date*/user/stuff/file
> These fail:
> date*/user/*
> date*/user/*/*
> date*/user/stu*
> date*/user/stu*/*
> date*/user/stu*/file
> date*/user/stuff/*
> date*/user/stuff/f*

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