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From "Aaron T. Myers (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-9337) org.apache.hadoop.fs.DF.getMount() does not work on Mac OS
Date Tue, 05 Mar 2013 01:24:11 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-9337?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13592895#comment-13592895
] 

Aaron T. Myers commented on HADOOP-9337:
----------------------------------------

+1, the patch looks good to me. I'm going to commit this momentarily.
                
> org.apache.hadoop.fs.DF.getMount() does not work on Mac OS
> ----------------------------------------------------------
>
>                 Key: HADOOP-9337
>                 URL: https://issues.apache.org/jira/browse/HADOOP-9337
>             Project: Hadoop Common
>          Issue Type: Bug
>    Affects Versions: 3.0.0, 0.23.7, 2.0.4-beta
>         Environment: Mac OS 10.8
>            Reporter: Ivan A. Veselovsky
>            Assignee: Ivan A. Veselovsky
>         Attachments: HADOOP-9337--a.patch, HADOOP-9337--b.patch, HADOOP-9337-branch-0.23--a.patch
>
>
> test org.apache.hadoop.fs.TestLocalFileSystem.testReportChecksumFailure() (added in HADOOP-9067)
appears to fail on MacOS because 
> method org.apache.hadoop.fs.DF.getMount() does not work correctly.
> The problem is that "df -k <path>" command returns on MacOS output like the following:
> -------
> Filesystem   1024-blocks      Used Available Capacity  iused    ifree %iused  Mounted
on
> /dev/disk0s4   194879828 100327120  94552708    52% 25081778 23638177   51%   /Volumes/Data
> -------
> while the following is expected:
> -------
> Filesystem         1024-blocks      Used Available Capacity Mounted on
> /dev/mapper/vg_iveselovskyws-lv_home 420545160  15978372 383204308       5% /home
> -------
> So, we see that Mac's output has 3 additional tokens.
> I can suggest 2 ways to fix the problem.
> (a) use "-P" (POSIX) option when invoking df command. This will probably ensure unifirm
output on all Unix systems;
> (b) move Mac branch to specific "case" branch and treat it specifically (like we currently
have for AIX, DF.java, line 214)

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