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From "Eli Collins (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HADOOP-7855) Improve DiskChecker javadocs
Date Thu, 24 Nov 2011 00:01:07 GMT
Improve DiskChecker javadocs
----------------------------

                 Key: HADOOP-7855
                 URL: https://issues.apache.org/jira/browse/HADOOP-7855
             Project: Hadoop Common
          Issue Type: Bug
          Components: util
            Reporter: Eli Collins
             Fix For: 0.24.0


The javadocs for DiskChecker#checkDir(File dir) trail off, look like they weren't completed,
should be. 

While checkDir(File) uses java File to check if a dir actually is writable, the version of
checkDir that takes an FsPermission uses FsAction#implies which doesn't actually check if
a dir is writable (eg it passes on a read-only file system). So switching from one version
to the other can cause unexpected bugs. Let's call this out explicitly in the javadocs.

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