Mailing-List: contact mapreduce-issues-help@hadoop.apache.org; run by ezmlm
Precedence: bulk
Reply-To: mapreduce-issues@hadoop.apache.org
Message-ID: <25883267.55821272453813182.JavaMail.jira@thor>
Date: Wed, 28 Apr 2010 07:23:33 -0400 (EDT)
From: "Amareshwari Sriramadasu (JIRA)" <jira@apache.org>
To: mapreduce-issues@hadoop.apache.org
Subject: [jira] Updated: (MAPREDUCE-1607) Task controller may not set
 permissions for a task cleanup attempt's log directory
In-Reply-To: <1934837163.340151268913688270.JavaMail.jira@brutus.apache.org>
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 7bit


     [ https://issues.apache.org/jira/browse/MAPREDUCE-1607?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Amareshwari Sriramadasu updated MAPREDUCE-1607:
-----------------------------------------------

    Status: Patch Available  (was: Open)

All linux task controller tests passed with the patch (both as tt user and some other user). I tested viewing of task logs and cleanup attempts logs on the single node machine.

> Task controller may not set permissions for a task cleanup attempt's log directory
> ----------------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-1607
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-1607
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: task-controller
>            Reporter: Hemanth Yamijala
>            Assignee: Amareshwari Sriramadasu
>         Attachments: patch-1607-1.txt, patch-1607-ydist.txt, patch-1607.txt
>
>
> Task controller uses the INITIALIZE_TASK command to initialize task attempt and task log directories. For cleanup tasks, task attempt directories are named as task-attempt-id.cleanup. But log directories do not have the .cleanup suffix. The task controller is not aware of this distinction and tries to set permissions for log directories named task-attempt-id.cleanup. This is a NO-OP. Typically the task cleanup runs on the same node that ran the original task attempt as well. So, the task log directories are already properly initialized. However, the task cleanup can run on a node that has not run the original task attempt. In that case, the initialization would not happen and this could result in the cleanup task failing.

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.