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目录
1.打开Xftp,连接虚拟机,在/opt目录下新建两个文件夹
5.修改hadoop313文件及子目录文件的所有权为root
配置如下,具体步骤可以参考我的另一篇博文《CentOS7中新建虚拟机详细步骤》
参考我的博文:《Linux网关设置》
[root@localhost ~]# yum -y install vim
参考我的博文《Linux设置ssh免密登录》
参考我的博文《Linux中CentOS7时间与网络时间orWindows同步的方法》
[root@localhost .ssh]# vim /etc/hostname
- [root@localhost .ssh]# hostnamectl set-hostname lxm148
- [root@localhost .ssh]# bash
- [root@lxm148.ssh]#
此时ping ip地址或主机名都可以连接上
- [root@localhost .ssh]# ping 192.168.180.148
-
- [root@localhost .ssh]# ping lxm148
- [root@localhost .ssh]# vim /etc/hosts
-
- 127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
- ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6
- 192.168.180.148 lxm148
- 192.168.180.141 lxm141
修改后就可以直接ping主机名连接其他虚拟机
[root@localhost .ssh]# ping lxm141
参考我的博文《Linux安装JDK8详细步骤》
[root@localhost install]# tar -zxvf ./hadoop-3.1.3.tar.gz -C ../soft/
[root@localhost soft]# mv hadoop-3.1.3/ hadoop313
[root@lxm148 soft]# chown -R root:root /opt/soft/hadoop313/
- [root@lxm148 hadoop]# pwd
- /opt/soft/hadoop313/etc/hadoop
[root@lxm148 hadoop]# vim ./core-site.xml
- <configuration>
- <property>
- <name>fs.defaultFS</name>
- <value>hdfs://lxm148:9000</value>
- </property>
- <property>
- <name>hadoop.tmp.dir</name>
- <value>/opt/soft/hadoop313/data</value>
- <description>namenode上本地的hadoop临时文件夹</description>
- </property>
- <property>
- <name>hadoop.http.staticuser.user</name>
- <value>root</value>
- </property>
- <property>
- <name>io.file.buffer.size</name>
- <value>131072</value>
- <description>读写队列缓存:128K</description>
- </property>
- <property>
- <name>hadoop.proxyuser.root.hosts</name>
- <value>*</value>
- </property>
- <property>
- <name>hadoop.proxyuser.root.groups</name>
- <value>*</value>
- </property>
- </configuration>
切换目录
- [root@lxm148 hadoop313]# pwd
- /opt/soft/hadoop313
创建data文件
- [root@lxm148 hadoop313]# mkdir data
- [root@lxm148 hadoop313]# ll
- total 176
- drwxr-xr-x. 2 root root 183 Sep 12 2019 bin
- drwxr-xr-x. 2 root root 6 Feb 2 15:11 data
- drwxr-xr-x. 3 root root 20 Sep 12 2019 etc
- drwxr-xr-x. 2 root root 106 Sep 12 2019 include
- drwxr-xr-x. 3 root root 20 Sep 12 2019 lib
- drwxr-xr-x. 4 root root 288 Sep 12 2019 libexec
- -rw-rw-r--. 1 root root 147145 Sep 4 2019 LICENSE.txt
- -rw-rw-r--. 1 root root 21867 Sep 4 2019 NOTICE.txt
- -rw-rw-r--. 1 root root 1366 Sep 4 2019 README.txt
- drwxr-xr-x. 3 root root 4096 Sep 12 2019 sbin
- drwxr-xr-x. 4 root root 31 Sep 12 2019 share
[root@lxm148 hadoop]# vim ./hadoop-env.sh
[root@lxm148 hadoop]# vim ./hdfs-site.xml
- <configuration>
- <property>
- <name>dfs.replication</name>
- <value>1</value>
- <description>hadoop中每一个block文件的备份数量</description>
- </property>
- <property>
- <name>dfs.namenode.name.dir</name>
- <value>/opt/soft/hadoop313/data/dfs/name</value>
- <description>namenode上存储hdfsq名字空间元数据的目录</description>
- </property>
- <property>
- <name>dfs.datanode.data.dir</name>
- <value>/opt/soft/hadoop313/data/dfs/data</value>
- <description>datanode上数据块的物理存储位置目录</description>
- </property>
- <property>
- <name>dfs.permissions.enabled</name>
- <value>false</value>
- <description>关闭权限验证</description>
- </property>
- </configuration>
- [root@lxm148 data]# mkdir -p ./dfs/name
- [root@lxm148 data]# mkdir -p ./dfs/data
- <configuration>
- <property>
- <name>mapreduce.framework.name</name>
- <value>yarn</value>
- <description>job执行框架: local, classic or yarn</description>
- <final>true</final>
- </property>
- <property>
- <name>mapreduce.application.classpath</name>
- <value>/opt/soft/hadoop313/etc/hadoop:/opt/soft/hadoop313/share/hadoop/common/lib/*:/opt/soft/hadoop313/share/hadoop/common/*:/opt/soft/hadoop313/share/hadoop/hdfs/*:/opt/soft/hadoop313/share/hadoop/hdfs/lib/*:/opt/soft/hadoop313/share/hadoop/mapreduce/*:/opt/soft/hadoop313/share/hadoop/mapreduce/lib/*:/opt/soft/hadoop313/share/hadoop/yarn/*:/opt/soft/hadoop313/share/hadoop/yarn/lib/*</value>
- </property>
-
- <property>
- <name>mapreduce.jobhistory.address</name>
- <value>lxm148:10020</value>
- </property>
- <property>
- <name>mapreduce.jobhistory.webapp.address</name>
- <value>lxm148:19888</value>
- </property>
-
- <property>
- <name>mapreduce.map.memory.mb</name>
- <value>1024</value>
- </property>
- <property>
- <name>mapreduce.reduce.memory.mb</name>
- <value>1024</value>
- </property>
-
- </configuration>
[root@lxm148 hadoop]# vim ./yarn-site.xml
- <configuration>
-
- <!-- Site specific YARN configuration properties -->
-
- <property>
- <name>yarn.resourcemanager.connect.retry-interval.ms</name>
- <value>20000</value>
- </property>
-
- <property>
- <name>yarn.resourcemanager.scheduler.class</name>
- <value>org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler</value>
- </property>
-
- <property>
- <name>yarn.nodemanager.localizer.address</name>
- <value>lxm148:8040</value>
- </property>
-
- <property>
- <name>yarn.nodemanager.address</name>
- <value>lxm148:8050</value>
- </property>
-
- <property>
- <name>yarn.nodemanager.webapp.address</name>
- <value>lxm148:8042</value>
- </property>
-
- <property>
- <name>yarn.nodemanager.aux-services</name>
- <value>mapreduce_shuffle</value>
- </property>
-
- <property>
- <name>yarn.nodemanager.local-dirs</name>
- <value>/opt/soft/hadoop313/yarndata/yarn</value>
- </property>
-
- <property>
- <name>yarn.nodemanager.log-dirs</name>
- <value>/opt/soft/hadoop313/yarndata/log</value>
- </property>
-
- </configuration>
回到这个路径:/opt/soft/hadoop313/
[root@lxm148 hadoop313]# mkdir yarndata
[root@lxm148 hadoop]# vim /etc/profile
在JAVA_HOME下面接着配置HADOOP_HOME
- # HADOOP_HOME
- export HADOOP_HOME=/opt/soft/hadoop313
- export PATH=$PATH:$HADOOP_HOME/bin:$HADOOP_HOME/sbin:$HADOOP_HOME/lib
- export HDFS_NAMENODE_USER=root
- export HDFS_DATANODE_USER=root
- export HDFS_SECONDARYNAMENODE_USER=root
- export HDFS_JOURNALNODE_USER=root
- export HDFS_ZKFC_USER=root
- export YARN_RESOURCEMANAGER_USER=root
- export YARN_NODEMANAGER_USER=root
- export HADOOP_MAPRED_HOME=$HADOOP_HOME
- export HADOOP_COMMON_HOME=$HADOOP_HOME
- export HADOOP_HDFS_HOME=$HADOOP_HOME
- export HADOOP_YARN_HOME=$HADOOP_HOME
- export HADOOP_INSTALL=$HADOOP_HOME
- export HADOOP_COMMON_LIB_NATIVE_DIR=$HADOOP_HOME/lib/native
- export HADOOP_LIBEXEC_DIR=$HADOOP_HOME/libexec
- export HADOOP_CONF_DIR=$HADOOP_HOME/etc/hadoop
- [root@lxm148 hadoop]# source /etc/profile
-
- [root@lxm148 hadoop]# echo $HADOOP_HOME
[root@lxm148 yarndata]# hdfs namenode -format
[root@lxm148 yarndata]# start-all.sh
这里要注意:
如果输入jps命令后启动的数量少于6个,可能是缺少的那个xml文件或/etc/profile中的配置出错,需要仔细检查
如果配置没问题,可以输入命令单独启用服务
hdfs --daemon start datanode 各个服务组件逐一启动/停止 (1)分别启动/停止HDFS组件 hdfs --daemon start/stop namenode/datanode/secondarynamenode (2)启动/停止YARN yarn --daemon start/stop resourcemanager/nodemanager
http://192.168.180.148:9870
也可以在网页输入
http://lxm147:9870
此时我门需要在windows上进行主机映射
添加主机映射
有的电脑可能无法直接在里面输入并保存,需要放到桌面上,配置完成后再进行保存,再放回C:\Windows\System32\drivers\etc目录下
切换到这个目录下:
/opt/soft/hadoop313/etc/hadoop
- [root@lxm148 hadoop]# hdfs dfs -put mapred-env.cmd /
- 2023-02-02 16:03:55,911 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
- 2023-02-02 16:03:58,392 INFO sasl.SaslDataTransferClient: SASL encryption trust check: localHostTrusted = false, remoteHostTrusted = false
刷新网页
Block默认所占空间为128MB
[root@lxm148 hadoop]# stop-all.sh
下次启动直接输入以下命令即可:
[root@lxm148 hadoop]# start-all.sh
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