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From "sam rash (JIRA)" <j...@apache.org>
Subject [jira] Created: (HDFS-1350) make datanodes do graceful shutdown
Date Sun, 22 Aug 2010 03:35:17 GMT
make datanodes do graceful shutdown

                 Key: HDFS-1350
                 URL: https://issues.apache.org/jira/browse/HDFS-1350
             Project: Hadoop HDFS
          Issue Type: Improvement
          Components: data-node
            Reporter: sam rash
            Assignee: sam rash

we found that the Datanode doesn't do a graceful shutdown and a block can be corrupted (data
+ checksum amounts off)

we can make the DN do a graceful shutdown in case there are open files. if this presents a
problem to a timely shutdown, we can make a it a parameter of how long to wait for the full
graceful shutdown before just exiting

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