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From "Eli Collins (JIRA)" <j...@apache.org>
Subject [jira] Created: (HDFS-1161) Make DN minimum valid volumes configurable
Date Tue, 18 May 2010 03:36:42 GMT
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: 0.22.0
            Reporter: Eli Collins
            Assignee: Eli Collins
             Fix For: 0.22.0

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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