macOS使用docker搭建hadoop集群

安装docker

下载网址:https://www.docker.com/products/docker-desktop/

构建基础镜像

拉取centos镜像

docker pull centos:7.5.1804

创建文件夹,将jdk安装包放入,并配置Dockerfile文件

mkdir docker-hadoop
cd docker-hadoop
mv ~/Downloads/jdk-8u341-linux-x64.tar.gz ./jdk-8u341-linux-x64.tar.gz
vim Dockerfile
FROM centos:7.5.1804
#安装JDK
RUN mkdir -p /opt/software && mkdir -p /opt/service
ADD jdk-8u141-linux-x64.tar.gz /opt/service

#安装语言包
RUN yum -y install kde-l10n-Chinese glibc-common vim
RUN localedef -c -f UTF-8 -i zh_CN zh_CN.utf8
RUN echo "LANG=zh_CN.UTF-8" >>/etc/locale.conf

#解决login环境变量失效问题
RUN touch /etc/profile.d/my_env.sh
RUN echo -e "export LC_ALL=zh_CN.UTF-8\nexport JAVA_HOME=/opt/service/jdk1.8.0_141\nexport PATH=\$PATH:\$JAVA_HOME/bin" >>/etc/profile.d/my_env.sh

#安装ssh服务
# 更换国内阿里云yum源
RUN curl -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
RUN sed -i -e '/mirrors.cloud.aliyuncs.com/d' -e '/mirrors.aliyuncs.com/d' /etc/yum.repos.d/CentOS-Base.repo
RUN yum makecache

# 安装sshd
RUN yum install -y openssh-server openssh-clients vim net-tools lrzsz
RUN sed -i '/^HostKey/'d /etc/ssh/sshd_config
RUN echo 'HostKey /etc/ssh/ssh_host_rsa_key'>>/etc/ssh/sshd_config

# 生成 ssh-key
RUN ssh-keygen -t rsa -b 2048 -f /etc/ssh/ssh_host_rsa_key

# 更改 root 用户登录密码为
RUN echo 'root:123456' | chpasswd

# 声明 22 端口
EXPOSE 22
# 容器运行时启动sshd
RUN mkdir -p /opt
RUN echo '#!/bin/bash' >> /opt/run.sh
RUN echo '/usr/sbin/sshd -D' >> /opt/run.sh
RUN chmod +x /opt/run.sh
CMD ["/opt/run.sh"]

构建基础镜像

docker build -t hadoopbase:1.0 ./

解决macOS宿主机无法ping通Docker容器的问题

1.首先 Mac 端通过 brew 安装 docker-connector

brew install wenjunxiao/brew/docker-connector

2.手动修改 /usr/local/etc/docker-connector.conf 文件中的路由

route 172.172.0.0/16

3.配置完成,直接启动服务(需要 sudo,路由配置启动之后仍然可以修改,并且无需重启服务立即生效),需要输入本机密码

sudo brew services start docker-connector

4.使用一下命令在docker 端运行 wenjunxiao/mac-docker-connector

docker run -it -d --restart always --net host --cap-add NET_ADMIN --name connector wenjunxiao/mac-docker-connector

启动镜像 基础配置

创建自定义网络

docker network create --subnet=172.172.0.0/24 hadoop

固定容器ip启动

docker run -itd --network hadoop --ip 172.172.0.2 -h hadoop01  --name hadoop01 hadoopbase:1.0 /bin/bash
docker run -itd --network hadoop --ip 172.172.0.3 -h hadoop02  --name hadoop02 hadoopbase:1.0 /bin/bash
docker run -itd --network hadoop --ip 172.172.0.4 -h hadoop03  --name hadoop03 hadoopbase:1.0 /bin/bash

分别进入hadoop01、hadoop02、hadoop03配置主机和映射

vim /etc/hosts
172.172.0.2 hadoop01
172.172.0.3 hadoop02
172.172.0.4 hadoop03

分别进入hadoop01、hadoop02、hadoop03配置免密登录

ssh-keygen -t rsa
ssh-copy-id hadoop01
ssh-copy-id hadoop02
ssh-copy-id hadoop03

Hadoop安装与部署

hadoop安装

1)将hadoop导入到opt/software文件夹下

[root@hadoop01 ~]$ cd /opt/software

[root@hadoop01 software]$ rz -E

2)将安装文件解压到/opt/service文件夹下

[root@hadoop01 software]$ tar -zxvf hadoop-3.1.3.tar.gz -C /opt/service/ 

3)检查是否解压成功

[root@hadoop01 software]$ ll /opt/service/hadoop-3.1.3/ 

4)将hadoop添加到环境变量

第一步:获取Hadoop的安装路径

[root@hadoop01 hadoop-3.1.3]$ pwd
/opt/service/hadoop-3.1.3

第二步:打开/etc/profile.d/my_env.sh文件

[root@hadoop01 hadoop-3.1.3]$ sudo vim /etc/profile.d/my_env.sh

第三步:在my_env.sh文件中增加如下配置信息

#HADOOP_HOME
export HADOOP_HOME=/opt/service/hadoop-3.1.3

export PATH=$PATH:$HADOOP_HOME/bin

export PATH=$PATH:$HADOOP_HOME/sbin

export HDFS_NAMENODE_USER=root

export HDFS_DATANODE_USER=root

export HDFS_SECONDARYNAMENODE_USER=root

export YARN_RESOURCEMANAGER_USER=root

export YARN_NODEMANAGER_USER=root

第四步:刷新配置文件

[root@hadoop01 hadoop-3.1.3]$ source /etc/profile.d/my_env.sh

修改配置文件

(1) 修改配置文件core-site.xml

第一步:进入core-site.xml所在的位置(hadoop的配置文件在hadoop根目录/etc/hadoop文件夹中)

[root@hadoop01 hadoop]$ cd $HADOOP_HOME/etc/hadoop

第二步:修改core-site.xml

[root@hadoop01 hadoop]$ vim core-site.xml

内容修改为:


<?xml version="1.0" encoding="UTF-8"?>

<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>

 

<configuration>

​	<!-- 指定NameNode的地址 -->

  <property>

​    <name>fs.defaultFS</name>

​    <value>hdfs://hadoop01:8020</value>

</property>

<!-- 指定hadoop数据的存储目录 -->

  <property>

​    <name>hadoop.tmp.dir</name>

​    <value>/opt/service/hadoop-3.1.3/data</value>

</property>

 

<!-- 配置HDFS网页登录使用的静态用户为root -->

  <property>

​    <name>hadoop.http.staticuser.user</name>

​    <value>root</value>

</property>

</configuration>

(2) 修改配置文件hdfs-site.xml

编辑hdfs-site.xml

[root@hadoop01 hadoop]$ vim hdfs-site.xml

内容为:

<?xml version="1.0" encoding="UTF-8"?>

<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>

 

<configuration>

​	<!-- nn web端访问地址-->

​	<property>

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

​    <value>hadoop01:9870</value>

  </property>

  

​	<!-- 2nn web端访问地址-->

  <property>

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

​    <value>hadoop03:9868</value>

  </property>

  

  <!-- 测试环境指定HDFS副本的数量1 -->

  <property>

​    <name>dfs.replication</name>

​    <value>1</value>

  </property>

</configuration>

(3) 修改配置文件yarn-site.xml

编辑yarn-site.xml

[root@hadoop01 hadoop]$ vim yarn-site.xml

内容为:

<?xml version="1.0" encoding="UTF-8"?>

<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>

 

<configuration>

​	<!-- 指定MR走shuffle -->

  <property>

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

​    <value>mapreduce_shuffle</value>

  </property>

  

  <!-- 指定ResourceManager的地址-->

  <property>

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

​    <value>hadoop02</value>

  </property>

  

  <!-- 环境变量的继承 -->

  <property>

​    <name>yarn.nodemanager.env-whitelist</name>

​    <value>JAVA_HOME,HADOOP_COMMON_HOME,HADOOP_HDFS_HOME,HADOOP_CONF_DIR,CLASSPATH_PREPEND_DISTCACHE,HADOOP_YARN_HOME,HADOOP_MAPRED_HOME</value>

  </property>

  

  <!-- yarn容器允许分配的最大最小内存 -->

  <property>

​    <name>yarn.scheduler.minimum-allocation-mb</name>

​    <value>512</value>

  </property>

  <property>

​    <name>yarn.scheduler.maximum-allocation-mb</name>

​    <value>014</value>

  </property>

  

  <!-- yarn容器允许管理的物理内存大小 -->

  <property>

​    <name>yarn.nodemanager.resource.memory-mb</name>

​    <value>2048</value>

  </property>

  

  <!-- 关闭yarn对虚拟内存的限制检查 -->

  <property>

​    <name>yarn.nodemanager.vmem-check-enabled</name>

​    <value>false</value>

  </property>

</configuration>

(4) 修改配置文件mapred-site.xml

编辑mapred-site.xml

[root@hadoop01 hadoop]$ vim mapred-site.xml 

内容为:

<?xml version="1.0" encoding="UTF-8"?>

<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>

 

<configuration>

​	<!-- 指定MapReduce程序运行在Yarn上 -->

  <property>

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

​    <value>yarn</value>

  </property>

</configuration>

(5) 修改配置文件workers

编辑workers

[root@hadoop01 hadoop]$ vim workers

内容如下

hadoop01
hadoop02
hadoop03

注意:该文件中添加的内容结尾不允许有空格,文件中不允许有空行。

(6) 配置历史服务器 编辑mapred-site.xml

[root@hadoop01 hadoop]$ vim mapred-site.xml 

增加以下内容:

<!-- 历史服务器端地址 -->

<property>

  <name>mapreduce.jobhistory.address</name>

  <value>hadoop01:10020</value>

</property>

 

<!-- 历史服务器web端地址 -->

<property>

  <name>mapreduce.jobhistory.webapp.address</name>

  <value>hadoop01:19888</value>

</property>

(7) 配置日志聚集 编辑yarn-site.xml

日志聚集概念:应用运行完成以后,将程序运行日志信息上传到HDFS系统上。

日志聚集功能好处:可以方便的查看到程序运行详情,方便开发调试。

注意:开启日志聚集功能,需要重新启动NodeManager 、ResourceManager和HistoryManager。

配置步骤如下:

编辑yarn-site.xml

[root@hadoop01 hadoop]$ vim yarn-site.xml

增加如下内容:

<!-- 开启日志聚集功能 -->

<property>

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

  <value>true</value>

</property>

 

<!-- 设置日志聚集服务器地址 --> 

<property>  

  <name>yarn.log.server.url</name>  

  <value>http://hadoop01:19888/jobhistory/logs</value>

</property>

 

<!-- 设置日志保留时间为7天 (7*24*60*60)-->

<property>

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

  <value>604800</value>

</property>

分发Hadoop

[root@hadoop01 hadoop]$ scp  -r /opt/service/hadoop-3.1.3 hadoop02:/opt/service
[root@hadoop01 hadoop]$ scp  -r /opt/service/hadoop-3.1.3 hadoop03:/opt/service

分发配置文件my_env.sh

[root@hadoop01 hadoop]$ scp  -r  /etc/profile.d/my_env.sh hadoop02:/etc/profile.d
[root@hadoop01 hadoop]$ scp  -r  /etc/profile.d/my_env.sh hadoop03:/etc/profile.d

hadoop02、hadoop03上刷新配置文件

[root@hadoop02 hadoop]$ source  /etc/profile.d/my_env.sh 
[root@hadoop03 hadoop]$ source  /etc/profile.d/my_env.sh

相关shell脚本

分发脚本

功能:循环复制文件到所有节点的相同目录下

bin目录下新建xsync

[root@hadoop01 bin]# cd /bin
[root@hadoop01 bin]# vim xsync
#!/bin/bash
#1. 判断参数个数
if [ $# -lt 1 ]
then
 echo Not Enough Arguement!
 exit;
fi
#2. 遍历集群所有机器
for host in hadoop01 hadoop02 hadoop03
do
 echo ==================== $host ====================
 #3. 遍历所有目录,挨个发送
 for file in $@
 do
 #4. 判断文件是否存在
 if [ -e $file ]
 then
 #5. 获取父目录
 pdir=$(cd -P $(dirname $file); pwd)
 #6. 获取当前文件的名称
 fname=$(basename $file)
 ssh $host "mkdir -p $pdir"
 rsync -av $pdir/$fname $host:$pdir
 else
 echo $file does not exists!
 fi
 done
done
[root@hadoop01 bin]# chmod +x xsync

测试:

[root@hadoop01 ~]# xsync /bin/xsync 

集群启停脚本

[root@hadoop01 ~]# cd /bin/
[root@hadoop01 bin]# vim hadoopall
#!/bin/bash
if [ $# -lt 1 ]
then
 echo "No Args Input..."
 exit ;
fi
case $1 in
"start")
 echo " =================== 启动 hadoop 集群 ==================="
 echo " --------------- 启动 hdfs ---------------"
 ssh hadoop01 "$HADOOP_HOME/sbin/start-dfs.sh"
 echo " --------------- 启动 yarn ---------------"
 ssh hadoop02 "$HADOOP_HOME/sbin/start-yarn.sh"
 echo " --------------- 启动 historyserver ---------------"
 ssh hadoop01 "$HADOOP_HOME/bin/mapred --daemon start historyserver"
;;
"stop")
 echo " =================== 关闭 hadoop 集群 ==================="
 echo " --------------- 关闭 historyserver ---------------"
 ssh hadoop01 "$HADOOP_HOME/bin/mapred --daemon stop historyserver"
 echo " --------------- 关闭 yarn ---------------"
 ssh hadoop02 "$HADOOP_HOME/sbin/stop-yarn.sh"
 echo " --------------- 关闭 hdfs ---------------"
 ssh hadoop01 "$HADOOP_HOME/sbin/stop-dfs.sh"
;;
*)
 echo "Input Args Error..."
;;
esac

添加执行权限

[root@hadoop01 bin]# chmod +x hadoopall

查看三台服务器Java进程脚本

[root@hadoop01 bin]# vim jpsall
#!/bin/bash
for host in hadoop01 hadoop02 hadoop03
do
 echo =============== $host ===============
 ssh $host jps 
done

添加执行权限

[root@hadoop01 bin]# chmod +x jpsall 
posted @ 2022-11-06 00:28  wangfan000  阅读(534)  评论(0编辑  收藏  举报