Viraj Jasani created HDFS-16568:
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             Summary: dfsadmin -reconfig option to start/query reconfig on all 
live datanodes
                 Key: HDFS-16568
                 URL: https://issues.apache.org/jira/browse/HDFS-16568
             Project: Hadoop HDFS
          Issue Type: New Feature
            Reporter: Viraj Jasani
            Assignee: Viraj Jasani


DFSAdmin provides option to initiate or query the status of reconfiguration 
operation on only specific host based on host:port provided by user. It would 
be good to provide an ability to initiate such operations in bulk, on all live 
datanodes.



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