上传文件到hdfs内容为空的问题

[漫天雪_昆仑巅]

hadoop伪分布，可以说是玩单机版吧，都是在同一个机器上，部署好了之后启动，jps是正常的；
32625 NodeManager
109317 Jps
31957 NameNode
32230 SecondaryNameNode
32520 ResourceManager
32058 DataNode

通过hadoop fs -put上传文件也是正常的，
但是通过eclipse代码实现上传文件，就报错了，如下错误：
org.apache.hadoop.ipc.RemoteException(java.io.IOException): File /test/input/word.txt could only be replicated to 0 nodes instead of minReplication (=1). There are 1 datanode(s) running and 1 node(s) are excluded in this operation.
at org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.chooseTarget4NewBlock(BlockManager.java:1733)
at org.apache.hadoop.hdfs.server.namenode.FSDirWriteFileOp.chooseTargetForNewBlock(FSDirWriteFileOp.java:265)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getAdditionalBlock(FSNamesystem.java:2496)
at org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.addBlock(NameNodeRpcServer.java:828)
at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.addBlock(ClientNamenodeProtocolServerSideTranslatorPB.java:506)
at org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(ClientNamenodeProtocolProtos.java)
at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:447)
at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:989)
at org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:845)
at org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:788)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:422)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1807)
at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2455)

at org.apache.hadoop.ipc.Client.getRpcResponse(Client.java:1481)
at org.apache.hadoop.ipc.Client.call(Client.java:1427)
at org.apache.hadoop.ipc.Client.call(Client.java:1337)
at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:227)
at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:116)
at com.sun.proxy.$Proxy13.addBlock(Unknown Source)
at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.addBlock(ClientNamenodeProtocolTranslatorPB.java:440)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:398)
at org.apache.hadoop.io.retry.RetryInvocationHandler$Call.invokeMethod(RetryInvocationHandler.java:163)
at org.apache.hadoop.io.retry.RetryInvocationHandler$Call.invoke(RetryInvocationHandler.java:155)
at org.apache.hadoop.io.retry.RetryInvocationHandler$Call.invokeOnce(RetryInvocationHandler.java:95)
at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:335)
at com.sun.proxy.$Proxy14.addBlock(Unknown Source)
at org.apache.hadoop.hdfs.DataStreamer.locateFollowingBlock(DataStreamer.java:1733)
at org.apache.hadoop.hdfs.DataStreamer.nextBlockOutputStream(DataStreamer.java:1536)
at org.apache.hadoop.hdfs.DataStreamer.run(DataStreamer.java:658)


试了很多次都是could only be replicated to 0 nodes instead of minReplication (=1)错误；
查看Hdfs文件目录，文件是有的，但是内容为空！这个会是什么问题呢？
java代码如下：

	public static boolean uploadLocalFile2HDFS(String localFile, String hdfsFile) throws IOException {
		if (StringUtils.isBlank(localFile) || StringUtils.isBlank(hdfsFile)) {
			return false;
		}
		hdfsFile = uri + hdfsFile;
		Configuration config = new Configuration();
		FileSystem hdfs = FileSystem.get(URI.create(uri), config);
		Path src = new Path(localFile);
		Path dst = new Path(hdfsFile);
		hdfs.copyFromLocalFile(src, dst);
		hdfs.close();
		return true;
	}