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From "Raghu Angadi (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-4517) unstable dfs when running jobs on 0.18.1
Date Fri, 24 Oct 2008 20:41:44 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-4517?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Raghu Angadi updated HADOOP-4517:
---------------------------------

         Priority: Blocker  (was: Major)
    Fix Version/s: 0.20.0
                   0.19.1
                   0.18.2

> unstable dfs when running jobs on 0.18.1
> ----------------------------------------
>
>                 Key: HADOOP-4517
>                 URL: https://issues.apache.org/jira/browse/HADOOP-4517
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: dfs
>    Affects Versions: 0.18.1
>         Environment: hadoop-0.18.1 plus patches HADOOP-4277 HADOOP-4271 HADOOP-4326 HADOOP-4314
HADOOP-3914 HADOOP-4318 HADOOP-4351 HADOOP-4395
>            Reporter: Christian Kunz
>            Priority: Blocker
>             Fix For: 0.18.2, 0.19.1, 0.20.0
>
>         Attachments: datanode.out
>
>
> 2 attempts of a job using 6000 maps, 1900 reduces
> 1.st attempt: failed during reduce phase after 22 hours with 31 dead datanodes most of
which became unresponsive due to an exception; dfs lost blocks
> 2nd attempt: failed during map phase after 5 hours with 5 dead datanodes due to exception;
dfs lost blocks responsible for job failure.
> I will post typical datanode exception and attach thread dump.

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