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From "Jason Lowe (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-6550) archive-logs tool changes log ownership to the Yarn user when using DefaultContainerExecutor
Date Tue, 24 Nov 2015 21:44:10 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-6550?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15025485#comment-15025485
] 

Jason Lowe commented on MAPREDUCE-6550:
---------------------------------------

Agree with the checkstyle nit: the new conf local is eclipsing a field.  We should either
just use the conf field directly or rename the local for clarity.

Otherwise patch looks good.

> archive-logs tool changes log ownership to the Yarn user when using DefaultContainerExecutor
> --------------------------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-6550
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6550
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>    Affects Versions: 2.8.0
>            Reporter: Robert Kanter
>            Assignee: Robert Kanter
>         Attachments: MAPREDUCE-6550.001.patch, MAPREDUCE-6550.002.patch, MAPREDUCE-6550.003.patch
>
>
> The archive-logs tool added in MAPREDUCE-6415 leverages the Distributed Shell app.  When
using the DefaultContainerExecutor, this means that the job will actually run as the Yarn
user, so the resulting har files are owned by the Yarn user instead of the original owner.
The permissions are also now world-readable.
> In the below example, the archived logs are owned by 'yarn' instead of 'paul' and are
now world-readable:
> {noformat}
> [root@gs28-centos66-5 ~]# sudo -u hdfs hdfs dfs -ls -R /tmp/logs
> ...
> drwxrwx---   - paul  hadoop          0 2015-10-02 13:24 /tmp/logs/paul/logs/application_1443805425363_0005
> drwxr-xr-x   - yarn  hadoop          0 2015-10-02 13:24 /tmp/logs/paul/logs/application_1443805425363_0005/application_1443805425363_0005.har
> -rw-r--r--   3 yarn  hadoop          0 2015-10-02 13:24 /tmp/logs/paul/logs/application_1443805425363_0005/application_1443805425363_0005.har/_SUCCESS
> -rw-r--r--   3 yarn  hadoop       1256 2015-10-02 13:24 /tmp/logs/paul/logs/application_1443805425363_0005/application_1443805425363_0005.har/_index
> -rw-r--r--   3 yarn  hadoop         24 2015-10-02 13:24 /tmp/logs/paul/logs/application_1443805425363_0005/application_1443805425363_0005.har/_masterindex
> -rw-r--r--   3 yarn  hadoop    8451177 2015-10-02 13:24 /tmp/logs/paul/logs/application_1443805425363_0005/application_1443805425363_0005.har/part-0
> drwxrwx---   - paul  hadoop          0 2015-10-02 13:24 /tmp/logs/paul/logs/application_1443805425363_0006
> -rw-r-----   3 paul  hadoop       1155 2015-10-02 13:24 /tmp/logs/paul/logs/application_1443805425363_0006/gs-centos66-2.vpc.cloudera.com_8041
> -rw-r-----   3 paul  hadoop       4880 2015-10-02 13:24 /tmp/logs/paul/logs/application_1443805425363_0006/gs28-centos66-3.vpc.cloudera.com_8041
> ...
> {noformat}



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