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From "Eli Collins (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-1847) Datanodes should decomission themselves on volume failure
Date Tue, 19 Apr 2011 23:56:05 GMT
Datanodes should decomission themselves on volume failure
---------------------------------------------------------

                 Key: HDFS-1847
                 URL: https://issues.apache.org/jira/browse/HDFS-1847
             Project: Hadoop HDFS
          Issue Type: Improvement
          Components: data-node
            Reporter: Eli Collins
             Fix For: 0.23.0


A DN should decommission itself rather than shutdown whenever the configured threshold of
volume failures (dfs.datanode.failed.volumes.tolerated) has been reached. This allows the
namenode to distinguish between a datanode that might not come back up soon (and will need
replication) vs one that is just restarting.

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