hadoop-common-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-9758) Provide configuration option for FileSystem/FileContext symlink resolution
Date Wed, 31 Jul 2013 22:07:49 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-9758?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13725766#comment-13725766
] 

Hadoop QA commented on HADOOP-9758:
-----------------------------------

{color:green}+1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12595256/hadoop-9758-5.patch
  against trunk revision .

    {color:green}+1 @author{color}.  The patch does not contain any @author tags.

    {color:green}+1 tests included{color}.  The patch appears to include 1 new or modified
test files.

    {color:green}+1 javac{color}.  The applied patch does not increase the total number of
javac compiler warnings.

    {color:green}+1 javadoc{color}.  The javadoc tool did not generate any warning messages.

    {color:green}+1 eclipse:eclipse{color}.  The patch built with eclipse:eclipse.

    {color:green}+1 findbugs{color}.  The patch does not introduce any new Findbugs (version
1.3.9) warnings.

    {color:green}+1 release audit{color}.  The applied patch does not increase the total number
of release audit warnings.

    {color:green}+1 core tests{color}.  The patch passed unit tests in hadoop-common-project/hadoop-common
hadoop-hdfs-project/hadoop-hdfs.

    {color:green}+1 contrib tests{color}.  The patch passed contrib unit tests.

Test results: https://builds.apache.org/job/PreCommit-HADOOP-Build/2896//testReport/
Console output: https://builds.apache.org/job/PreCommit-HADOOP-Build/2896//console

This message is automatically generated.
                
> Provide configuration option for FileSystem/FileContext symlink resolution
> --------------------------------------------------------------------------
>
>                 Key: HADOOP-9758
>                 URL: https://issues.apache.org/jira/browse/HADOOP-9758
>             Project: Hadoop Common
>          Issue Type: Improvement
>    Affects Versions: 3.0.0, 2.3.0
>            Reporter: Andrew Wang
>            Assignee: Andrew Wang
>         Attachments: hadoop-9758-4.patch, hadoop-9758-5.patch, hdfs-4968-1.patch, hdfs-4968-2.patch,
hdfs-4968-3.patch
>
>
> With FileSystem symlink support incoming in HADOOP-8040, some clients will wish to not
transparently resolve symlinks. This is somewhat similar to O_NOFOLLOW in open(2).
> Rationale for is for a security model where a user can invoke a third-party service running
as a service user to operate on the user's data. For instance, users might want to use Hive
to query data in their homedirs, where Hive runs as the Hive user and the data is readable
by the Hive user. This leads to a security issue with symlinks:
> # User Mallory invokes Hive to process data files in {{/user/mallory/hive/}}
> # Hive checks permissions on the files in {{/user/mallory/hive/}} and allows the query
to proceed.
> # RACE: Mallory replaces the files in {{/user/mallory/hive}} with symlinks that point
to user Ann's Hive files in {{/user/ann/hive}}. These files aren't readable by Mallory, but
she can create whatever symlinks she wants in her own scratch directory.
> # Hive's MR jobs happily resolve the symlinks and accesses Ann's private data.
> This is also potentially useful for clients using FileContext, so let's add it there
too.

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira

Mime
View raw message