hadoop伪分布式安装（单机版） HDFS +Yarn

一.安装环境与版本

Linux，虚拟机IP192.168.21.150:

hadoop-3.2.0

jdk1.8

二.  伪分布式安装HDFS 

2.1hosts与profile配置

cd /etc
vim hosts
192.168.21.142 node01

cd /etc
vim profile
export JAVA_HOME=/usr/local/jdk
export HADOOP_HOME=/usr/local/hadoop-3.2.0
PATH=$PATH::$JAVA_HOME/bin:$HADOOP_HOME/bin:$HADOOP_HOME/sbin:$HADOOP_HOME/lib:$ZK_HOME/bin

2.2解压

cd /usr/local/software
tar zxvf hadoop-3.2.0.tar.gz
mv hadoop-3.2.0  /usr/local/hadoop-3.2.0

2.3配置修改

hadoop-env.sh

cd /usr/local/hadoop-3.2.0/etc/hadoop

vim hadoop-env.sh

export JAVA_HOME=/usr/local/jdk

export HDFS_NAMENODE_USER=root

export HDFS_DATANODE_USER=root

export HDFS_SECONDARYNAMENODE_USER=root

core-site.xml

cd /usr/local/hadoop-3.2.0/etc/hadoop

vim core-site.xml

configuration中录入

    <property>

        <name>fs.defaultFS</name>

        <value>hdfs://node01:9000</value>

    </property>

    <property>

        <name>hadoop.tmp.dir</name>

        <value>/var/sxt/hadoop/local</value>  

    </property>

hdfs-site.xml

cd /usr/local/hadoop-3.2.0/etc/hadoop
vim hdfs-site.xml
在configuration中录入

    <property>

        <name>dfs.replication</name>

        <value>1</value>

    </property>

    <property>

        <name>dfs.namenode.secondary.http-address</name>

        <value>node01:50090</value>

    </property>

workers

cd /usr/local/hadoop-3.2.0/etc/hadoop

vim workers

里面内容只有"node1"

2.4编译与启动

cd /usr/local/hadoop-3.2.0/bin
./hdfs namenode -format

cd /usr/local/hadoop-3.2.0/sbin
./start-dfs.sh

2.5验证

IP输入http://192.168.21.144:9870/出现

 active说明已能成功运行hdfs

三.  伪分布式安装Yarn

3.1配置修改

hadoop-env.sh

cd /usr/local/hadoop-3.2.0/etc/hadoop
vim hadoop-env.sh

export JAVA_HOME=/usr/local/jdk

export HDFS_NAMENODE_USER=root

export HDFS_DATANODE_USER=root

export HDFS_SECONDARYNAMENODE_USER=root

export HDFS_JOURNALNODE_USER=root

export YARN_RESOURCEMANAGER_USER=root

export YARN_NODEMANAGER_USER=root

mapred-site.xml

cd /usr/local/hadoop-3.2.0/etc/hadoop/

vim mapred-site.xml

configuration中录入

  <property>

        <name>mapreduce.framework.name</name>

        <value>yarn</value>

    </property>

<property>

  <name>yarn.app.mapreduce.am.env</name>

  <value>HADOOP_MAPRED_HOME=${HADOOP_HOME}</value>

</property>

<property>

  <name>mapreduce.map.env</name>

  <value>HADOOP_MAPRED_HOME=${HADOOP_HOME}</value>

</property>

<property>

  <name>mapreduce.reduce.env</name>

  <value>HADOOP_MAPRED_HOME=${HADOOP_HOME}</value>

</property>

yarn-site.xml

cd /usr/local/hadoop-3.2.0-ha/etc/hadoop/

vim yarn-site.xml

configuration中录入

  <property>

        <name>yarn.nodemanager.aux-services</name>

        <value>mapreduce_shuffle</value>

    </property>

    <property>

        <name>yarn.resourcemanager.hostname</name>

        <value>node01</value>

    </property>

    <property>

        <name>yarn.log-aggregation-enable</name>

        <value>true</value>

    </property>

    <property>

        <name>yarn.log-aggregation.retain-seconds</name>

        <value>640800</value>

    </property>

3.2启动

cd /usr/local/hadoop-3.2.0/sbin

./start-yarn.sh

3.3登录验证

http://192.168.21.150:8088/

 

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