hadoop安装 伪分布
伪分布hadoop 安装总结
准备，在配置中hadoop用的9000端口，如果有其它软件用着这个端口，建议更换后再进行下面配置，以避免出现错误。比如php-fpm经常使用9000端口。
一、下载jdk
下载linux 64 8u73-64位版本
tar zxvf jdk-8u74-linux-x64.tar.gz -C /usr/local/
二、下载hadoop
tar zxvf hadoop-2.6.4.tar.gz -C /usr/local/
配置项:
vim /etc/profile.d/hadoop.sh
export JAVA_HOME=/usr/local/jdk1.8.0_74
export JRE_HOME=/usr/local/jdk1.8.0_74/jre
export CLASSPATH=.:$JAVA_HOME/lib:$JRE_HOME/lib:$CLASSPATH
export PATH=$JAVA_HOME/bin:$JRE_HOME/bin:$PATH
export HADOOP_HOME=/usr/local/hadoop-2.6.4
export HADOOP_PREPATH=/usr/local/hadoop-2.6.4
export HADOOP_PID_DIR=/usr/local/hadoop-2.6.4/pid
export YARN_PID_DIR=/usr/local/hadoop-2.6.4/pid
export HADOOP_MAPRED_PID_DIR=/usr/local/hadoop-2.6.4/pid
export PATH=$HADOOP_HOME/bin:$PATH
source /etc/profile.d/hadoop.sh
vim etc/hadoop/core-site.xml
<configuration>
<property>
<name>hadoop.tmp.dir</name>
<value>/usr/local/hadoop-2.6.4/tmp</value>
<description>Abase for other temporary directories.</description>
</property>
<property>
<name>fs.defaultFS</name>
<value>hdfs://localhost:9000</value>
</property>
</configuration>
vim etc/hadoop/yarn-site.xml
<property>
<name>yarn.resourcemanager.hostname</name>
<value>master</value>
</property>
<property>
<description>The address of the applications manager interface in the RM.</description>
<name>yarn.resourcemanager.address</name>
<value>${yarn.resourcemanager.hostname}:8032</value>
</property>
<property>
<description>The address of the scheduler interface.</description>
<name>yarn.resourcemanager.scheduler.address</name>
<value>${yarn.resourcemanager.hostname}:8030</value>
</property>
<property>
<description>The http address of the RM web application.</description>
<name>yarn.resourcemanager.webapp.address</name>
<value>${yarn.resourcemanager.hostname}:8088</value>
</property>
<property>
<description>The https adddress of the RM web application.</description>
<name>yarn.resourcemanager.webapp.https.address</name>
<value>${yarn.resourcemanager.hostname}:8090</value>
</property>
<property>
<name>yarn.resourcemanager.resource-tracker.address</name>
<value>${yarn.resourcemanager.hostname}:8031</value>
</property>
<property>
<description>The address of the RM admin interface.</description>
<name>yarn.resourcemanager.admin.address</name>
<value>${yarn.resourcemanager.hostname}:8033</value>
</property>
<property>
<name>yarn.nodemanager.aux-services</name>
<value>mapreduce_shuffle</value>
</property>
vim etc/hadoop/hdfs-site.xml
<configuration>
<property>
<name>dfs.replication</name>
<value>1</value>
</property>
<property>
<name>dfs.namenode.name.dir</name>
<value>file:/usr/local/hadoop-2.6.4/dfs/name</value>
</property>
<property>
<name>dfs.datanode.data.dir</name>
<value>file:/usr/local/hadoop-2.6.4/dfs/data</value>
</property>
<property>
<name>dfs.permissions</name>
<value>false</value>
</property>
</configuration>
vim etc/hadoop/masters
localhost
vim etc/hadoop/slaves
localhost
mkdir tmp dfs dfs/name dfs/data
bin/hdfs namenode -format
sbin/start-dfs.sh
sbin/start-yarn.sh
配置OK.
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