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From "Amareshwari Sriramadasu (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-5547) One bad node can cause whole job to fail
Date Mon, 23 Mar 2009 05:01:51 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-5547?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12688212#action_12688212
] 

Amareshwari Sriramadasu commented on HADOOP-5547:
-------------------------------------------------

This should not happen, until there are no other nodes in cluster to run the task. Did you
have other nodes with free slot on your cluster?

> One bad node can cause whole job to fail
> ----------------------------------------
>
>                 Key: HADOOP-5547
>                 URL: https://issues.apache.org/jira/browse/HADOOP-5547
>             Project: Hadoop Core
>          Issue Type: Bug
>            Reporter: Nathan Marz
>
> This happened on the 0.19.2 branch. One of the nodes in our cluster was having disk problems
and every task run on it was failing. In general the node would get blacklisted and jobs would
run fine on it. However, for one job, the job ran the "Job setup" task on this bad node. When
the task failed, the task was then retried on the same bad node 3 more times until the job
failed. Hadoop should be able to handle this situation better.

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