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https://issues.apache.org/jira/browse/HADOOP-9337?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13592895#comment-13592895
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Aaron T. Myers commented on HADOOP-9337:
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+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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