hadoop1.1.2如何配置及启动

<?xml version="1.0"?>

<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>

<!-- Put site-specific property overrides in this file. -->

<configuration>

 <property>

  <name>fs.default.name</name>

  <value>hdfs://localhost:9000</value>

 </property>

 <property>

  <name>hadoop.tmp.dir</name>

  <value>/opt/hadoop-1.1.2/tmp</value>

 </property>

</configuration>

<?xml version="1.0"?>

<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>

<!-- Put site-specific property overrides in this file. -->

<configuration>

<!-- 设置备份的份数 --> 

 <property>

  <name>dfs.replication</name>

  <value>1</value>

 </property>

</configuration>

<?xml version="1.0"?>

<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>

<!-- Put site-specific property overrides in this file. -->

<configuration>

 <property>

  <name>mapred.job.tracker</name>

  <value>localhost:9001</value>

 </property>

</configuration>

$ ssh-keygen -t rsa

$ cd $HOME/.ssh

$ cp id_rsa.pub authorized_keys

$ ssh localhost