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From "John Zhuge (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-7352) FileSystem#listStatus should throw IOE upon access error
Date Thu, 08 Sep 2016 21:43:21 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-7352?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

John Zhuge updated HADOOP-7352:
-------------------------------
    Attachment: HADOOP-7352.002.patch

Patch 002:
* For directory, {{RawLocalFileSystem#listStatus}} calls {{FileUtil#list}} that throws IOE
upon access error
* Add unit test {{FSMainOperationsBaseTest#testGlobStatusThrowsExceptionForUnreadableDir}}
* Add unit test {{TestPathData#testGlobThrowsExceptionForUnreadableDir}}
* Update {{filesystem.md}}
* Pass tests: TestFSMainOperationsLocalFileSystem, TestFSMainOperationsWebHdfs, TestFSMainOperationsWebHdfs,
and TestPathData.

> FileSystem#listStatus should throw IOE upon access error
> --------------------------------------------------------
>
>                 Key: HADOOP-7352
>                 URL: https://issues.apache.org/jira/browse/HADOOP-7352
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: fs
>    Affects Versions: 2.6.0
>            Reporter: Matt Foley
>            Assignee: John Zhuge
>         Attachments: HADOOP-7352.001.patch, HADOOP-7352.002.patch
>
>
> In HADOOP-6201 and HDFS-538 it was agreed that FileSystem::listStatus should throw FileNotFoundException
instead of returning null, when the target directory did not exist.
> However, in LocalFileSystem implementation today, FileSystem::listStatus still may return
null, when the target directory exists but does not grant read permission.  This causes NPE
in many callers, for all the reasons cited in HADOOP-6201 and HDFS-538.  See HADOOP-7327 and
its linked issues for examples.



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