本人环境，4台机器LINUX  版本为 hadoop 2.0 aph  2台NAMENODE, 2台DATANODE
在执行   start-dfs.sh时 提示这个
2012-06-25 22:37:35,666 WARN  impl.MetricsConfig (MetricsConfig.java:loadFirst(125)) - Cannot locate configuration: tried hadoop-metrics2-namenode.properties,hadoop-metrics2.properties
这是 哪 配置的错误呢？ 或者 介绍个 多个NAMENODE安装的文档，非常感谢！！

这个是 hdfs-site 的配置
<configuration>
<property>
   <name>dfs.namenode.name.dir</name>
   <value>file:/usr/hadoop/hdfs/name</value>
   <final>true</final>
</property>

<property>
   <name>dfs.federation.nameservices</name>
   <value>ns1,ns2</value>
</property>

<property>
   <name>dfs.namenode.rpc-address.ns1</name>
   <value>master1:9000</value>
</property>

<property>
   <name>dfs.namenode.rpc-address.ns2</name>
   <value>master2:9000</value>
</property>

<property>
   <name>dfs.namenode.http-address.ns1</name>
   <value>master1:23001</value>
</property>

<property>
   <name>dfs.namenode.http-address.ns2</name>
   <value>master2:13001</value>
</property>

<property>
   <name>dfs.dataname.data.dir</name>
   <value>file:/usr/hadoop/hdfs/data</value>
   <final>true</final>
</property>

<property>
   <name>dfs.namenode.secondary.http-address.ns1</name>
   <value>master1:23002</value>
</property>

<property>
   <name>dfs.namenode.secondary.http-address.ns2</name>
   <value>master2:23002</value>
</property>

<property>
   <name>dfs.namenode.secondary.http-address.ns1</name>
   <value>master1:23003</value>
</property>

<property>
   <name>dfs.namenode.secondary.http-address.ns2</name>
   <value>master2:23003</value>
</property>

<property>
   <name>dfs.replication</name>
   <value>1</value>
</property>

<property>
   <name>dfs.permissions</name>
   <value>false</value>
</property>
</configuration>

我给个文档吧：
http://hadoop.apache.org/common/docs/r0.23.0/hadoop-yarn/hadoop-yarn-site/Federation.html