hadoop 1.2.1 配置

core-site.xml (namenode进程配置文件)

<configuration>
        <property>
                <name>fs.default.name</name>
                <value>hdfs://hadoop-master:9000</value>
        </property>
        <property>
                <name>hadoop.tmp.dir</name>
                <value>/opt/data/tmp</value>
        </property>
</configuration>

hdfs-site.xml (SecondaryNamenode进程配置文件)

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

mapred-site.xml (JobTracker进程配置文件)

<configuration>
        <property>
                <name>mapred.job.tracker</name>
                <value>localhost:9001</value>
        </property>
</configuration>

详情见：http://blog.csdn.net/hxpjava1/article/details/20214049