@Test
    public void test01() throws Exception {
        Configuration conf = new Configuration();
        FileSystem fs = FileSystem.get(new URI("hdfs://192.168.72.129:9870"), conf, "hadoop000");
        System.out.println(fs);
        System.out.println(fs.getDefaultBlockSize());
        System.out.println(fs.getDefaultReplication());

        boolean exists = fs.exists(new Path("/input"));
        System.out.println(exists);

        fs.create(new Path("/log"));
    }

SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in [jar:file:/C:/Users/wusx/.m2/repository/org/slf4j/slf4j-reload4j/1.7.36/slf4j-reload4j-1.7.36.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/C:/Users/wusx/.m2/repository/org/slf4j/slf4j-log4j12/1.7.25/slf4j-log4j12-1.7.25.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.
SLF4J: Actual binding is of type [org.slf4j.impl.Reload4jLoggerFactory]
DFS[DFSClient[clientName=DFSClient_NONMAPREDUCE_1277951121_1, ugi=hadoop000 (auth:SIMPLE)]]
134217728
3

org.apache.hadoop.ipc.RpcException: RPC response exceeds maximum data length

	at org.apache.hadoop.ipc.Client$IpcStreams.readResponse(Client.java:1936)
	at org.apache.hadoop.ipc.Client$Connection.receiveRpcResponse(Client.java:1238)
	at org.apache.hadoop.ipc.Client$Connection.run(Client.java:1134)

filesystem对象是得到了，也能正确返回节点的副本数这些，但是创建文件这些操作就报错