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From "Eli Collins (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HDFS-1161) Make DN minimum valid volumes configurable
Date Tue, 01 Jun 2010 19:38:45 GMT

     [ https://issues.apache.org/jira/browse/HDFS-1161?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Eli Collins updated HDFS-1161:
------------------------------

    Priority: Blocker  (was: Major)

Current patch is good to go. Putting on Tom's radar for 21. 

> Make DN minimum valid volumes configurable
> ------------------------------------------
>
>                 Key: HDFS-1161
>                 URL: https://issues.apache.org/jira/browse/HDFS-1161
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: data-node
>    Affects Versions: 0.21.0, 0.22.0
>            Reporter: Eli Collins
>            Assignee: Eli Collins
>            Priority: Blocker
>             Fix For: 0.21.0, 0.22.0
>
>         Attachments: hdfs-1161-1.patch, hdfs-1161-2.patch, hdfs-1161-3.patch, hdfs-1161-4.patch,
hdfs-1161-5.patch, hdfs-1161-6.patch
>
>
> The minimum number of non-faulty volumes to keep the DN active is hard-coded to 1.  It
would be useful to allow users to configure this value so the DN can be taken offline when
eg half of its disks fail, otherwise it doesn't get reported until it's down to it's final
disk and suffering degraded performance.

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