类 org.apache.hadoop.hdfs.server.datanode.DataNode
的使用

使用DataNode的程序包

程序包	说明
org.apache.hadoop.hdfs.server.datanode

org.apache.hadoop.hdfs.server.datanode中DataNode的使用

返回DataNode的org.apache.hadoop.hdfs.server.datanode中的方法

限定符和类型	方法和说明
static DataNode	DataNode.createDataNode(String[] args, Configuration conf) Instantiate & Start a single datanode daemon and wait for it to finish.
static DataNode	DataNode.createDataNode(String[] args, Configuration conf, SecureDataNodeStarter.SecureResources resources) Instantiate & Start a single datanode daemon and wait for it to finish.
protected DataNode	UpgradeObjectDatanode.getDatanode()
static DataNode	DataNode.getDataNode() Return the DataNode object
static DataNode	DataNode.instantiateDataNode(String[] args, Configuration conf) Instantiate a single datanode object.
static DataNode	DataNode.instantiateDataNode(String[] args, Configuration conf, SecureDataNodeStarter.SecureResources resources) Instantiate a single datanode object.
static DataNode	DataNode.makeInstance(String[] dataDirs, Configuration conf, SecureDataNodeStarter.SecureResources resources) Make an instance of DataNode after ensuring that at least one of the given data directories (and their parent directories, if necessary) can be created.

参数类型为DataNode的org.apache.hadoop.hdfs.server.datanode中的方法

限定符和类型	方法和说明
static void	DataNode.runDatanodeDaemon(DataNode dn) Start a single datanode daemon and wait for it to finish.