Hadoop 2环境配置

etc/hadoop目录下的配置文件core-site.xml

<configuration>
<property>
<name>fs.default.name</name>
<value>hdfs://localhost:9000</value>
</property>
<property>
<name>hadoop.tmp.dir</name>
<value>/home/fd/tmp</value>
</property>
</configuration>

hdfs-site.xml

<configuration>
<property>
<name>dfs.replication</name>
<value>1</value>
</property>
<property>
<name>dfs.namenode.name.dir</name>
<value>file:/home/fd/namenode</value>
</property>
<property>
<name>dfs.datanode.data.dir</name>
<value>file:/home/fd/datanode</value>
</property>
</configuration>

mapred-site.xml

<configuration>
<property>
<name>mapreduce.framework.name</name>
<value>yarn</value>
</property>
</configuration>

yarn-site.xml

<configuration>
<property>
<name>yarn.nodemanager.aux-services</name>
<value>mapreduce_shuffle</value>
</property>
<property>
<name>yarn.resourcemanager.resource-tracker.address</name>
<value>hadoop1:8031</value>
</property>
   <property>
       <name>yarn.resourcemanager.scheduler.address</name>
     <value>hadoop1:8030</value>
</property>
</configuration>

yarn-env.sh加上java home初始化，输入命令，bin/hdfs namenode -format全部启动sbin/start-all.sh，也可以分开sbin/start-dfs.sh、sbin/start-yarn.sh或者更详细hadoop-daemon.sh start namenodehadoop-daemon.sh start datanodeyarn-daemon.sh start resourcemanageryarn-daemon.sh start nodemanager启动后可以从50070和8088端口查看hadoop下载地址http://mirror.bit.edu.cn/apache/hadoop/common/