How to use a number of file system?

[cho ju il]

I operates a three Hadoop cluster.
Hadoop cluster is not configured Federation.
Each is different Hadoop clusters.
Service applications are accessible to each of the Hadoop cluster.
 
I use something like this?
 
 
Configuration conf1 = new Configuration();
conf1.addResource( new Path("core-site-zone1.xml") );
conf1.addResource( new Path("hdfs-site-zone1.xml") );
FileSystem dfsZone1 = FileSystem.get(conf1);
 
Configuration conf2 = new Configuration();
conf2.addResource( new Path("core-site-zone2.xml") );
conf2.addResource( new Path("hdfs-site-zone2.xml") );
FileSystem dfsZone2 = FileSystem.get(conf2);
 
Configuration conf3 = new Configuration();
conf3.addResource( new Path("core-site-zone3.xml") );
conf3.addResource( new Path("hdfs-site-zone3.xml") );
FileSystem dfsZone3 = FileSystem.get(conf3);
 
 
## sample
## core-site.xml
<configuration>
        <property>
                <name>fs.defaultFS</name>
                <value>viewfs:///</value>
        </property>
        <property>
                <name>fs.viewfs.impl</name>
                
<value>org.apache.hadoop.fs.viewfs.ViewFileSystem</value>
        </property>       
        <property>
                
<name>fs.viewfs.mounttable.default.link./hdfs1</name>
                <value>hdfs://ns01/hdfs1</value>
        </property>
</configuration>

## hdfs-site.xml
<configuration>   <!-- namespace -->        <property>        
        <name>dfs.nameservices</name>               
<value>ns01</value> </property>       <property>        
        <name>dfs.ha.namenodes.ns01</name>          
<value>nn01,nn02</value>    </property>
        <!-- zone1 -->    <property>                
<name>dfs.namenode.rpc-address.ns01.nn01</name>             
<value>namenode01:40000</value>     </property>       
<property>                
<name>dfs.namenode.http-address.ns01.nn01</name>            
<value>namenode01:40070</value>     </property>       
<property>                
<name>dfs.namenode.rpc-address.ns01.nn02</name>             
<value>namenode02:40000</value>     </property>       
<property>                
<name>dfs.namenode.http-address.ns01.nn02</name>            
<value>namenode02:40070</value>     </property>       
<property>                
<name>dfs.client.failover.proxy.provider.ns01</name>                
<value>org.apache.hadoop.hdfs.server.namenode.ha.ConfiguredFailoverProxyProvider</value>
    </property>
        <property>                        
<name>dfs.blocksize</name>                  
<value>134217728</value>    </property>       
<property>                        
<name>dfs.replication</name>                        
<value>2</value>    </property>
</configuration>