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From "Bharath Mundlapudi (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-7123) Hadoop Disk Fail Inplace
Date Fri, 28 Jan 2011 22:16:45 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-7123?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Bharath Mundlapudi updated HADOOP-7123:
---------------------------------------

    Description: 
This is an umbrella Jira for tracking all the issues and work related for handling disk failures
across the Hadoop stack. Today, Hadoop handles disk failures to some extent but not all the
issues. This involves understanding both startup and runtime issues related to disk failures
in the Hadoop components. 

Scope: The initial scope of work will only be for DataNode and TaskTracker related disk failure
issues. 

Methodology: Injecting disk failures in SCSI layer at various runtime points of Hadoop and
observing Hadoop's behavior for improvement. 


  was:
This is an umbrella Jira for tracking all the issues and work related for handling disk failures
across the Hadoop stack. Today, Hadoop handles disk failures to some extent but not 
all the issues. This involves understanding both startup and runtime issues related to disk
failures in the Hadoop components. 

Scope: The initial scope of work will only be for DataNode and TaskTracker related disk failure
issues. 

Methodology: Injecting disk failures in SCSI layer at various runtime points of Hadoop and
observing Hadoop's behavior for improvement. 



       Assignee: Bharath Mundlapudi

> Hadoop Disk Fail Inplace
> ------------------------
>
>                 Key: HADOOP-7123
>                 URL: https://issues.apache.org/jira/browse/HADOOP-7123
>             Project: Hadoop Common
>          Issue Type: Improvement
>            Reporter: Bharath Mundlapudi
>            Assignee: Bharath Mundlapudi
>
> This is an umbrella Jira for tracking all the issues and work related for handling disk
failures across the Hadoop stack. Today, Hadoop handles disk failures to some extent but not
all the issues. This involves understanding both startup and runtime issues related to disk
failures in the Hadoop components. 
> Scope: The initial scope of work will only be for DataNode and TaskTracker related disk
failure issues. 
> Methodology: Injecting disk failures in SCSI layer at various runtime points of Hadoop
and observing Hadoop's behavior for improvement. 

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