hadoop安装1

1虚拟机的配置（非重点） vi /etc/sysconfig/network-scripts/ifcfg-ens33 接下来static yes修改就行 IPADDR=xxx 先esc退出编辑，再:wq systemctl restart network systemctl stop firewalld 2.jdk的安装：

systemctl status firewalld//关闭防火墙 systemctl disable firewalld//禁用防火墙

Ctrl+l//清屏 cd /opt 上传安装包 tar -zxvf jdk-8u221-linux-x64.tar.gz//解压jdk包 cd jdk1.8.0_221 pwd vi /etc/profile 输入53回车 找到export PATH…在下面输入 输入 export JAVA_HOME=/opt/jdk1.8.0_221 export CLASSPATH=.:$JAV{A}_{H}OME//lib/rt.jar:$JAVA_HOME/lib/tools.jar:$JAV{A}_{H}OME/lib/dt.jarexportPATH=$JAVA_HOME/bin:$JAV{A}_{H}OME/jre/bin:$PATH 先esc退出编辑，在：wq保存 source /etc/profile 最后java -version 3包的导入 4.开始配置 [①hadoop-env.sh

The java implementation to use. export JAVA_HOME=/opt/greeinstall/jdk18111

②core-site.xml fs.defaultFS hdfs://192.168.56.137:9000 hadoop.tmp.dir /opt/greeinstall/hadoop260/hadoop2 hadoop.proxyuser.root.hosts hadoop.proxyuser.root.groups

③hdfs-site.xml

dfs.replication 1 dfs.namenode.secondary.http-address lijia1:50090 mapred-site.xml mapreduce.framework.name yarn mapreduce.jobhistory.address HostName:10020 mapreduce.jobhistory.webapp.address HostName:19888

④yarn-site.xml

yarn.nodemanager.aux-services mapreduce_shuffle yarn.nodemanager.aux-services.mapreduce.shuffle.class org.apache.hadoop.mapred.ShuffleHandler yarn.resourcemanager.hostname HostName yarn.log-aggregation-enable true yarn.log-aggregation.retain-seconds 604800 vi ./slaves localhost

④3.2Hadoop环境变量配置 vi /etc/profile export HADOOP_HOME=/opt/greeinstall/hadoop260 export HADOOP_MAPRED_HOME=$HADOO{P}_{H}OMEexportHADOO{P}_{C}OMMO{N}_{H}OME=$HADOOP_HOME export HADOOP_HDFS_HOME=$HADOO{P}_{H}OMEexportYAR{N}_{H}OME=$HADOOP_HOME export HADOOP_COMMON_LIB_NATIVE_DIR=$HADOO{P}_{H}OME/lib/nativeexportHADOO{P}_{O}PTS="-Djava.library.path=$HADOOP_HOME/lib" export PATH=$PATH:$HADOOP_HOME/sbin:$HADOOP_HOME/bin

source /etc/profile