create method for updating machine name in DataNode.java --------------------------------------------------------
Key: HDFS-1711 URL: https://issues.apache.org/jira/browse/HDFS-1711 Project: Hadoop HDFS Issue Type: Sub-task Reporter: Boris Shkolnik Assignee: Boris Shkolnik -- This message is automatically generated by JIRA. - For more information on JIRA, see: http://www.atlassian.com/software/jira