书虫 -- hadoop1.2.1

Hadoop

 

vi conf/core-site.xml

<!--  fs.default.name - 这是一个描述集群中NameNode结点的URI(包括协议、主机名称、端口号)，集群里面的每一台机器都需要知道NameNode的地址。DataNode结点会先在NameNode上注册，这样它们的数据才可以被使用。独立的客户端程序通过这个URI跟DataNode交互，以取得文件的块列表。-->
    <property>
        <name>fs.default.name</name>
        <value>hdfs://192.168.13.128:50040/</value>
    </property>
    <property>
        <name>hadoop.tmp.dir</name>
        <value>/tmp/hadoop-lm</value>
    </property>


vi conf/hdfs-site.xml
    <property>
        <name>dfs.replication</name>
        <value>3</value>
    </property>
    <property>
        <name>dfs.name.dir</name>
        <value>/tmp/hadoop-lm/dfs/name</value>
    </property>
    <property>
        <name>dfs.data.dir</name>
        <value>/tmp/hadoop-lm/dfs/data</value>
    </property>
    <property>
        <name>dfs.permissions</name>
        <value>false</value>
        <description>
            If "true", enable permission checking in HDFS. If "false", permission checking is turned off, but all other behavior is unchanged. Switching from one parameter value to the other does not change the mode, owner or group of files or directories
        </description>
    </property>

vi conf/mapred-site.xml
    <property>
        <name>mapred.job.tracker</name>
        <value>192.168.13.128:50020</value>
    </property>

bin/hadoop namenode -format