环境准备:
三台虚拟机 master（8）、slave1（9）、slave2（10)
centos 7.1、jdk-8u171-linux-x64.tar.gz、hadoop-2.7.3.tar.gz
0x1环境准备
首先先在三台虚拟机中创建hadoop文件夹
mdkir /usr/hadoop在master中将hadoop解压到master的Hadoop文件夹中
tar -zxvf hadoop-2.7.3.tar.gz -C /usr/hadoop/0x2编辑配置文件
修改配置文件 vi /usr/hadoop/hadoop-2.7.3/etc/hadoop/hadoop-env.sh
添加
export JAVA_HOME=/usr/java/jdk1.8.0_171修改配置文件vi core-site.xml
<configuration> <property> <name>fs.default.name</name> <value>http://master:9000</value> </property> <property> <name>hadoop.mp.dir</name> <value>/usr/hadoop/hadoop-2.7.3/hdfs/tmp</value> </property> <property> <name>io.file.buffer.size</name> <value>131072</value> </property> <property> <name>fs.checkpoint.period</name> <value>60</value> </property> <property> <name>fs.checkpoint.size</name> <value>67108864</value> </property> </configuration>修改配置文件vi yarn-site.xml
<configuration> <!-- Site specific YARN configuration properties --> <property> <name>yarn.resourcemanager.address</name> <value>masetr:18040</value> </property> <property> <name>yarn.resourcemanager.scheduler.address</name> <value>masetr:18030</value> </property> <property> <name>yarn.resourcemanager.webapp.address</name> <value>masetr:18088</value> </property> <property> <name>yarn.resourcemanager.resource-tracker.address</name> <value>masetr:18025</value> </property> <property> <name>yarn.resourcemanager.admin.address</name> <value>masetr:18141</value> </property> <property> <name>yarn.resourcemanager.aux-services</name> <value>mapreduce_shuffle</value> </property> <property> <name>yarn.nodemanager.auxservices.mapreduce.shuffle.class</name> <value>org.apache.hadoop.mapred.ShuffleHandeler</value> </property> </configuration>修改配置文件 vi slaves
slave1 slave2修改配置文件master
master修改配置文件hdfs-site.xml
<configuration> <property> <name>dfs.replication</name> <value>2</value> </property> <property> <name>dfs.namenode.name.dir</name> <value>file:/usr/hadoop/hadoop-2.7.3/hdfs/name</value> <final>true</final> </property> <property> <name>dfs.datanode.data.dir</name> <value>file:/usr/hadoop/hadoop-2.7.3/hdfs/data</value> <final>true</final> </property> <property> <name>dfs.namenode.secondary.http-address</name> <value>slave1:9001</value> </property> <property> <name>dfs.webhdfs.enabled</name> <value>true</value> </property> <property> <name>dfs.permissions</name> <value>false</value> </property> </configuration>创建配置文件mapred-site.xml
cp -rvf mapred-site.xml.template mapred-site.xml
然后编辑
<configuration> <property> <name>mapreduce.framework.name</name> <value>yarn</value> </property> </configuration>分发hadoop
scp -r /usr/hadoop/ slave1:/usr/
修改环境变量
vi /etc/profile
export HADOOP_HOME=/usr/hadoop/hadoop-2.7.3/ export PATH=$HADOOP_HOME/bin:$HADOOP_HOME/sbin:$PATH然后在master格式化hadoop
hadoop namenode -format
然后启动
/usr/hadoop/hadoop-2.7.3/sbin/start-all.sh
