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    vivek123
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    the Data node send heart beat every 3 sec to Name node, If the name node doest not receive heart beat from a particular data node in 3sec it is declared dead.

    Now suppose we have a replication Factor 3, then it will always maintain that replication factor.
    so if a data node is dead the block of that will move to any active data node which does not have the same block replicated.
    The decision on which data node to move is again based on the configuration set for the name node.

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Reply To: If any DN stop working,how the block of dead DN will move to active DN
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