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安装Hadoop需要配置的几个文件

2016-02-13
薛彬
Hadoop

记录安装hadoop时需要配置的几个文件。

配置master上的

hadoop-env.sh

修改JAVA_HOME值 export JAVA_HOME=/usr/jdk

yarn-env.sh

修改JAVA_HOME值 export JAVA_HOME=/usr/jdk

slaves

加入几个节点的hostname

slave1
slave2

core-site.xml

<configuration>
    <property>
        <name>fs.defaultFS</name>
        <value>hdfs://master:9000</value>
    </property>
    <property>
        <name>hadoop.tmp.dir</name>
        <value>file:/home/hadoop/tmp</value>
    </property>
    <property>
        <name>io.file.buffer.size</name>
        <value>131702</value>
    </property>
</configuration>

hdfs-site.xml

<configuration>
    <property>
        <name>dfs.namenode.name.dir</name>
        <value>file:/home/hadoop/dfs/name</value>
    </property>
    <property>
        <name>dfs.datanode.data.dir</name>
        <value>file:/home/hadoop/dfs/data</value>
    </property>
    <property>
        <name>dfs.replication</name>
        <value>2</value>
    </property>
    <property>
        <name>dfs.namenode.secondary.http-address</name>
        <value>master:9001</value>
    </property>
    <property>
    <name>dfs.webhdfs.enabled</name>
    <value>true</value>
    </property>
</configuration>

mapred-site.xml

<configuration>
<property>
	<name>yarn.nodemanager.aux-services</name>
    <value>mapreduce_shuffle</value>
</property>
<property>
    <name>yarn.nodemanager.auxservices.mapreduce.shuffle.class</name>
    <value>org.apache.hadoop.mapred.ShuffleHandler</value>
</property>
<property>
    <name>yarn.resourcemanager.address</name>
    <value>master:8032</value>
</property>
<property>
    <name>yarn.resourcemanager.scheduler.address</name>
    <value>master:8030</value>
</property>
<property>
    <name>yarn.resourcemanager.resource-tracker.address</name>
    <value>master:8031</value>
</property>
<property>
    <name>yarn.resourcemanager.admin.address</name>
    <value>master:8033</value>
</property>
<property>
    <name>yarn.resourcemanager.webapp.address</name>
    <value>master:8088</value>
</property>
<property>
    <name>yarn.nodemanager.resource.memory-mb</name>
    <value>768</value>
</property>
</configuration>

yarn-site.xml

<configuration>
    <property>
           <name>yarn.nodemanager.aux-services</name>
           <value>mapreduce_shuffle</value>
    </property>
    <property>                                                                
		   <name>yarn.nodemanager.aux-services.mapreduce.shuffle.class</name>
           <value>org.apache.hadoop.mapred.ShuffleHandler</value>
    </property>
    <property>
           <name>yarn.resourcemanager.address</name>
           <value>master:8032</value>
   </property>
   <property>
           <name>yarn.resourcemanager.scheduler.address</name>
           <value>master:8030</value>
   </property>
   <property>
        <name>yarn.resourcemanager.resource-tracker.address</name>
         <value>master:8031</value>
  </property>
  <property>
          <name>yarn.resourcemanager.admin.address</name>
           <value>master:8033</value>
   </property>
   <property>
           <name>yarn.resourcemanager.webapp.address</name>
           <value>master:8088</value>
   </property>
</configuration>

将master的配置文件复制到其他节点

sudo scp -r /usr/hadoop/hadoop-2.6.2 hadoop@slave1:~/

启动hadoop

在hadoop-2.6.2文件夹下执行

hdfs namenode -format

然后执行

sbin/start-all.sh

此时执行jps在master上可以看到

13077 ResourceManager
14518 Jps
12779 SecondaryNameNode
12444 NameNode

在slave上可以看到

7126 DataNode
7336 NodeManager
7722 Jps

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