Mailing-List: contact hadoop-dev-help@lucene.apache.org; run by ezmlm
Precedence: bulk
Reply-To: hadoop-dev@lucene.apache.org
Message-ID: <17960210.1178545935523.JavaMail.jira@brutus>
Date: Mon, 7 May 2007 06:52:15 -0700 (PDT)
From: "Hadoop QA (JIRA)" <jira@apache.org>
To: hadoop-dev@lucene.apache.org
Subject: [jira] Commented: (HADOOP-1252) Disk problems should be handled
 better by the MR framework
In-Reply-To: <32440618.1176383252235.JavaMail.jira@brutus>
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 7bit


    [ https://issues.apache.org/jira/browse/HADOOP-1252?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12494042 ] 

Hadoop QA commented on HADOOP-1252:
-----------------------------------

+1

http://issues.apache.org/jira/secure/attachment/12356859/1252.may7.patch applied and successfully tested against trunk revision r534975.

Test results:   http://lucene.zones.apache.org:8080/hudson/job/Hadoop-Patch/121/testReport/
Console output: http://lucene.zones.apache.org:8080/hudson/job/Hadoop-Patch/121/console

> Disk problems should be handled better by the MR framework
> ----------------------------------------------------------
>
>                 Key: HADOOP-1252
>                 URL: https://issues.apache.org/jira/browse/HADOOP-1252
>             Project: Hadoop
>          Issue Type: Bug
>          Components: mapred
>    Affects Versions: 0.12.3
>            Reporter: Devaraj Das
>         Assigned To: Devaraj Das
>             Fix For: 0.13.0
>
>         Attachments: 1252.may7.patch, 1252.new.patch, 1252.patch, 1252.patch
>
>
> The MR framework should recover from Disk Failure problems without causing jobs to hang. Note that this issue is about a short-term solution to solving the problem. For example, by looking at the code and improving the exception handling (to better detect faulty disks and missing files). The long term approach might be to have a FS layer that takes care of failed disks and makes it transparent to the tasks. That will be a separate issue by itself.
> Some of the issues that have been reported are HADOOP-1087 and a comment by Koji on HADOOP-1200 (not sure whether those are all). Please add to this issue as much details as possible on disk failures leading to hung jobs (details like relevant exception traces, way to reproduce, etc.).

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