Examples of org.apache.hadoop.hdfs.server.datanode.DataNode.shutdown()

Package org.apache.hadoop.hdfs.server.datanode

Class org.apache.hadoop.hdfs.server.datanode.DataNode

Examples of org.apache.hadoop.hdfs.server.datanode.DataNode.shutdown()

org.apache.hadoop.hdfs.server.datanode.DataNode.shutdown()
Shut down this instance of the datanode. Returns only after shutdown is complete. This method can only be called by the offerService thread. Otherwise, deadlock might occur.

    } catch(IOException e) {
      if (e instanceof java.net.BindException)
        return false;
      throw e;
    }
    dn.shutdown();
    return true;
  }


  /**
   * Check whether the secondary name-node can be started.

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   */
  public void shutdownDataNodes() {
    for (int i = dataNodes.size()-1; i >= 0; i--) {
      System.out.println("Shutting down DataNode " + i);
      DataNode dn = dataNodes.remove(i).datanode;
      dn.shutdown();
      numDataNodes--;
    }
  }


  /*

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    DataNode dn = dnprop.datanode;
    System.out.println("MiniDFSCluster Stopping DataNode " + 
                       dn.dnRegistration.getName() +
                       " from a total of " + (dataNodes.size() + 1) + 
                       " datanodes.");
    dn.shutdown();
    numDataNodes--;
    return dnprop;
  }


  /**

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   */
  public void shutdownDataNodes() {
    for (int i = dataNodes.size()-1; i >= 0; i--) {
      LOG.info("Shutting down DataNode " + i);
      DataNode dn = dataNodes.remove(i).datanode;
      dn.shutdown();
      numDataNodes--;
    }
  }


  /**

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    DataNode dn = dnprop.datanode;
    LOG.info("MiniDFSCluster Stopping DataNode " +
                       dn.getDisplayName() +
                       " from a total of " + (dataNodes.size() + 1) + 
                       " datanodes.");
    dn.shutdown();
    numDataNodes--;
    return dnprop;
  }


  /*

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   */
  public void shutdownDataNodes() {
    for (int i = dataNodes.size()-1; i >= 0; i--) {
      System.out.println("Shutting down DataNode " + i);
      DataNode dn = dataNodes.remove(i).datanode;
      dn.shutdown();
      numDataNodes--;
    }
  }


  /*

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    DataNode dn = dnprop.datanode;
    System.out.println("MiniDFSCluster Stopping DataNode " + 
                       dn.dnRegistration.getName() +
                       " from a total of " + (dataNodes.size() + 1) + 
                       " datanodes.");
    dn.shutdown();
    numDataNodes--;
    return dnprop;
  }


  /**

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    } catch(IOException e) {
      if (e instanceof java.net.BindException)
        return false;
      throw e;
    }
    dn.shutdown();
    return true;
  }


  /**
   * Check whether the secondary name-node can be started.

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   */
  public void shutdownDataNodes() {
    for (int i = dataNodes.size()-1; i >= 0; i--) {
      LOG.info("Shutting down DataNode " + i);
      DataNode dn = dataNodes.remove(i).datanode;
      dn.shutdown();
      numDataNodes--;
    }
  }


  /**

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    DataNode dn = dnprop.datanode;
    LOG.info("MiniDFSCluster Stopping DataNode " +
                       dn.getDisplayName() +
                       " from a total of " + (dataNodes.size() + 1) + 
                       " datanodes.");
    dn.shutdown();
    numDataNodes--;
    return dnprop;
  }


  /*

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