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From "Steve Loughran (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-14935) Azure: POSIX permissions are taking effect in access() method even when authorization is enabled
Date Mon, 16 Oct 2017 15:11:02 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-14935?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Steve Loughran updated HADOOP-14935:
------------------------------------
       Resolution: Fixed
    Fix Version/s: 3.1.0
                   2.9.0
           Status: Resolved  (was: Patch Available)

+1, committed the stripped down patch  005, which culls the permissions checks in getFileStatus()
entirely; applied to branch-2 and trunk.  This should be enough for Hive to be happy without
adding any extra complexity and options into the FS client. 

> Azure: POSIX permissions are taking effect in access() method even when authorization
is enabled
> ------------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-14935
>                 URL: https://issues.apache.org/jira/browse/HADOOP-14935
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: fs/azure
>    Affects Versions: 2.9.0
>            Reporter: Santhosh G Nayak
>            Assignee: Santhosh G Nayak
>             Fix For: 2.9.0, 3.1.0
>
>         Attachments: HADOOP-14935-003.patch, HADOOP-14935-004.patch, HADOOP-14935-005.patch,
HADOOP-14935.1.patch, HADOOP-14935.2.patch
>
>
> FileSystem implementation class for azure i.e. {{NativeAzureFileSystem}} does not override
{{access(path,mode)}} method and uses the default implementation from the base class. This
base implementaion uses the POSIX permissions to check if the requested user has access to
given path or not even when authorization is enabled, which is incorrect.
> {{NativeAzureFileSystem.access()}} in authorization enabled mode should use the authorization
mechanism provided instead of relying on the POSIX permission ons. So the proposal is to override
{{FileSystem.access()}} method in {{NativeAzureFileSystem}} such that it honors the authorization
mechanism configured in authorization enabled mode and falls back to POSIX permissions otherwise.



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