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Date: Tue, 31 Mar 2009 07:54:53 -0700 (PDT)
From: "Ramya R (JIRA)" <jira@apache.org>
To: core-dev@hadoop.apache.org
Subject: [jira] Commented: (HADOOP-5599) Unable to run jobs when all the
 nodes in rack are down
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    [ https://issues.apache.org/jira/browse/HADOOP-5599?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12694138#action_12694138 ] 

Ramya R commented on HADOOP-5599:
---------------------------------

Consider the following simple scenario:
* Generate data
 * Datanodes in a given rack goes down(2 replicas of many block are lost)
* Run sort on the generated data
* Sort job fails
* The filesystem is declared CORRUPT

However the expected behavior would be to successfully sort the data available using the third replica of blocks.

> Unable to run jobs when all the nodes in rack are down
> ------------------------------------------------------
>
>                 Key: HADOOP-5599
>                 URL: https://issues.apache.org/jira/browse/HADOOP-5599
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: dfs
>    Affects Versions: 0.20.0
>            Reporter: Ramya R
>             Fix For: 0.20.0
>
>
> Jobs such as randomwriter, sort, validator fail when all the datanodes in a rack are down.

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