Hadoop安装

Hadoop安装步骤

1.安装JDK

2.下载并解压hadoop安装包，免密通信，/etc/hosts文件

3.修改配置文件

hadoop-env.sh

export JAVA_HOME=/home/buyabs.corp/biadmin/java/jdk8

export HADOOP_PID_DIR=/home/buyabs.corp/biadmin/hadoop/tmp

 

mapred-env.sh:

#进程号保存地址

export HADOOP_MAPRED_PID_DIR=/home/buyabs.corp/biadmin/hadoop/tmp

 

yarn-env.sh：

#进程号保存地址

export YARN_PID_DIR=/home/buyabs.corp/biadmin/hadoop/tmp

 

slaves:

 

hadoop-env.sh:

# The java implementation to use.
export JAVA_HOME=/home/buyabs.corp/biadmin/java/jdk8

hdfs-site.xml:
<configuration>
        <property>
                <name>dfs.replication</name>
                <value>1</value>
        </property>
        <property>
                <name>dis.namenode.name.dir</name>
                <value>/home/buyabs.corp/biadmin/hadoop/name</value>
        </property>
        <property>
                <name>dis.datanode.data.dir</name>
                <value>/home/buyabs.corp/biadmin/hadoop/data</value>
        </property>
        <property>
                <name>dfs.secondary.http.address</name>
                <value>127.0.0.1:50090</value>
        </property>
</configuration>

 

core-site.xml:

<configuration>
        <property>
                <name>fs.default.name</name>
                <value>hdfs://scc1bi02:9000</value>
        </property>
        <property>
                <name>hadoop.temp.dir</name>
                <value>/home/buyabs.corp/biadmin/hadoop/tmp</value>
        </property>
</configuration>

 

yarn-site.xml

<configuration>

<!-- Site specific YARN configuration properties -->
        <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.log-aggregation-enable</name>
                <value>true</value>
        </property>
        <property>
                <name>yarn.resourcemanager.webapp.address</name>
                <value>scc1bi02:18088</value>
        </property>
        <property>
                 <name>yarn.resourcemanager.hostname</name>
                 <value>scc1bi02</value>
        </property>
</configuration>

mapred-site.xml:

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

环境变量 vi /etc/profile：

export JAVA_HOME=/home/buyabs.corp/biadmin/java/jdk8
export HADOOP_HOME=/home/buyabs.corp/biadmin/hadoop/hadoop277
export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
export PATH=$PATH:$JAVA_HOME/bin:$HADOOP_HOME/bin:$HADOOP_HOME/sbin

export HADOOP_PREFIX=$HADOOP_HOME
export HADOOP_COMMON_HOME=$HADOOP_PREFIX
export HADOOP_CONF_DIR=$HADOOP_PREFIX/etc/hadoop
export HADOOP_HDFS_HOME=$HADOOP_PREFIX
export HADOOP_MAPRED_HOME=$HADOOP_PREFIX
export HADOOP_YARN_HOME=$HADOOP_PREFIX