你好,游客 登录 注册 搜索
背景:
阅读新闻

Hadoop集群安装-CDH5(3台服务器集群)

[日期:2016-05-30] 来源:Linux社区  作者:hunttown [字体: ]

Hadoop集群安装-CDH5(3台服务器集群)

CDH5包下载:http://archive.cloudera.com/cdh5/

主机规划:

IP

Host

部署模块

进程

192.168.107.82

Hadoop-NN-01

NameNode

ResourceManager

NameNode

DFSZKFailoverController

ResourceManager

192.168.107.83

Hadoop-DN-01

Zookeeper-01

DataNode

NodeManager

Zookeeper

DataNode

NodeManager

JournalNode

QuorumPeerMain

192.168.107.84

Hadoop-DN-02

Zookeeper-02

DataNode

NodeManager

Zookeeper

DataNode

NodeManager

JournalNode

QuorumPeerMain

各个进程解释:

  • NameNode
  • ResourceManager
  • DFSZKFC:DFS Zookeeper Failover Controller 激活Standby NameNode
  • DataNode
  • NodeManager
  • JournalNode:NameNode共享editlog结点服务(如果使用NFS共享,则该进程和所有启动相关配置接可省略)。
  • QuorumPeerMain:Zookeeper主进程

目录规划:

名称

路径

$HADOOP_HOME

/home/hadoopuser/hadoop-2.6.0-cdh5.6.0

Data

$ HADOOP_HOME/data

Log

$ HADOOP_HOME/logs

 

配置:

一、关闭防火墙(防火墙可以以后配置)

二、安装JDK(略)

三、修改HostName并配置Host3台)

[root@Linux01 ~]# vim /etc/sysconfig/network
[root@Linux01 ~]# vim /etc/hosts

192.168.107.82 Hadoop-NN-01
192.168.107.83 Hadoop-DN-01 Zookeeper-01
192.168.107.84 Hadoop-DN-02 Zookeeper-01

四、为了安全,创建Hadoop专门登录的用户(5台)

[root@Linux01 ~]# useradd hadoopuser
[root@Linux01 ~]# passwd hadoopuser
[root@Linux01 ~]# su – hadoopuser        #切换用户

五、配置SSH免密码登录(2NameNode

[hadoopuser@Linux05 hadoop-2.6.0-cdh5.6.0]$ ssh-keygen   #生成公私钥
[hadoopuser@Linux05 hadoop-2.6.0-cdh5.6.0]$ ssh-copy-id -i ~/.ssh/id_rsa.pub hadoopuser@Hadoop-NN-01

-I 表示 input

~/.ssh/id_rsa.pub 表示哪个公钥组

或者省略为:

[hadoopuser@Linux05 hadoop-2.6.0-cdh5.6.0]$ ssh-copy-id Hadoop-NN-01(或写IP:10.10.51.231)   #将公钥扔到对方服务器
[hadoopuser@Linux05 hadoop-2.6.0-cdh5.6.0]$ ssh-copy-id ”6000 Hadoop-NN-01”  #如果带端口则这样写

注意修改Hadoop的配置文件 Hadoop-env.sh

export HADOOP_SSH_OPTS=”-p 6000”

[hadoopuser@Linux05 hadoop-2.6.0-cdh5.6.0]$ ssh Hadoop-NN-01  #验证(退出当前连接命令:exit、logout)
[hadoopuser@Linux05 hadoop-2.6.0-cdh5.6.0]$ ssh Hadoop-NN-01 –p 6000  #如果带端口这样写

六、配置环境变量:vi ~/.bashrc 然后 source ~/.bashrc5台)

[hadoopuser@Linux01 ~]$ vi ~/.bashrc
# hadoop cdh5
export HADOOP_HOME=/home/hadoopuser/hadoop-2.6.0-cdh5.6.0
export PATH=$PATH:$HADOOP_HOME/sbin:$HADOOP_HOME/bin

[hadoopuser@Linux01 ~]$ source ~/.bashrc  #生效

七、安装zookeeper2DataNode

1、解压

2、配置环境变量:vi ~/.bashrc

[hadoopuser@Linux01 ~]$ vi ~/.bashrc
# zookeeper cdh5
export ZOOKEEPER_HOME=/home/hadoopuser/zookeeper-3.4.5-cdh5.6.0
export PATH=$PATH:$ZOOKEEPER_HOME/bin

[hadoopuser@Linux01 ~]$ source ~/.bashrc  #生效

3、修改日志输出

[hadoopuser@Linux01 ~]$ vi $ZOOKEEPER_HOME/libexec/zkEnv.sh
56行: 找到如下位置修改语句:ZOO_LOG_DIR="$ZOOKEEPER_HOME/logs"

4、修改配置文件

[hadoopuser@Linux01 ~]$ vi $ZOOKEEPER_HOME/conf/zoo.cfg

# zookeeper
tickTime=2000
initLimit=10
syncLimit=5
dataDir=/home/hadoopuser/zookeeper-3.4.5-cdh5.6.0/data
clientPort=2181

# cluster
server.1=Zookeeper-01:2888:3888
server.2=Zookeeper-02:2888:3888

5、设置myid

(1)Hadoop-DN -01:

mkdir $ZOOKEEPER_HOME/data
echo 1 > $ZOOKEEPER_HOME/data/myid

(2)Hadoop-DN -02:

mkdir $ZOOKEEPER_HOME/data
echo 2 > $ZOOKEEPER_HOME/data/myid

6、各结点启动:

[hadoopuser@Linux01 ~]$ zkServer.sh start

7、验证

[hadoopuser@Linux01 ~]$ jps

3051 Jps
2829 QuorumPeerMain

8、状态

[hadoopuser@Linux01 ~]$ zkServer.sh status

JMX enabled by default
Using config: /home/zero/zookeeper/zookeeper-3.4.5-cdh5.0.1/bin/../conf/zoo.cfg
Mode: follower

9、附录zoo.cfg各配置项说明

属性

意义

tickTime

时间单元,心跳和最低会话超时时间为tickTime的两倍

dataDir

数据存放位置,存放内存快照和事务更新日志

clientPort

客户端访问端口

initLimit

配 置 Zookeeper 接受客户端(这里所说的客户端不是用户连接 Zookeeper服务器的客户端,而是 Zookeeper 服务器集群中连接到 Leader 的 Follower 服务器)初始化连接时最长能忍受多少个心跳时间间隔数。当已经超过 10 个心跳的时间(也就是 tickTime)长度后 Zookeeper 服务器还没有收到客户端的返回信息,那么表明这个客户端连接失败。总的时间长度就是 5*2000=10 秒。

syncLimit

这个配置项标识 Leader 与 Follower 之间发送消息,请求和应答时间长度,最长不能超过多少个

server.id=host:port:port

server.A=BCD

集群结点列表:

A :是一个数字,表示这个是第几号服务器;

B :是这个服务器的 ip 地址;

C :表示的是这个服务器与集群中的 Leader 服务器交换信息的端口;

D :表示的是万一集群中的 Leader 服务器挂了,需要一个端口来重新进行选举,选出一个新的 Leader,而这个端口就是用来执行选举时服务器相互通信的端口。如果是伪集群的配置方式,由于 B 都是一样,所以不同的 Zookeeper 实例通信端口号不能一样,所以要给它们分配不同的端口号。

 八、安装Hadoop,并配置(只装1配置完成后分发给其它节点)

1、解压

2、修改配置文件

1)修改 $HADOOP_HOME/etc/hadoop/masters

Hadoop-NN-01

2)修改 $HADOOP_HOME/etc/hadoop/slaves

Hadoop-DN-01
Hadoop-DN-02

3)修改 $HADOOP_HOME/etc/hadoop/vi core-site.xml

<configuration>
        <property>
               <name>fs.defaultFS</name>
               <value>hdfs://Hadoop-NN-01:9000</value>
               <description>定义HadoopMaster的URI和端口</description>
        </property>
        <property>
               <name>io.file.buffer.size</name>
               <value>131072</value>
               <description>用作序列化文件处理时读写buffer的大小</description>
        </property>
        <property>
               <name>hadoop.tmp.dir</name>
               <value>file:/home/hadoopuser/hadoop-2.6.0-cdh5.6.0/tmp</value>
               <description>临时数据存储目录设定</description>
        </property>
</configuration>

(4)修改 $HADOOP_HOME/etc/hadoop/hdfs-site.xml

<configuration>
        <property>
               <name>dfs.namenode.name.dir</name>
               <value>file:/home/hadoopuser/hadoop-2.6.0-cdh5.6.0/dfs/name</value>
               <description> namenode 存放name table(fsimage)本地目录(需要修改)</description>
        </property>
        <property>
               <name>dfs.namenode.data.dir</name>
               <value>file:/home/hadoopuser/hadoop-2.6.0-cdh5.6.0/dfs/data</value>
               <description>datanode存放block本地目录(需要修改)</description>
        </property>
        <property>
               <name>dfs.replication</name>
               <value>1</value>
               <description>文件副本个数,默认为3</description>
        </property>
</configuration>

(5)修改 $HADOOP_HOME/etc/hadoop/ yarn-site.xml

<configuration>
        <property>
               <name>yarn.resourcemanager.address</name>
               <value>Hadoop-NN-01:8032</value>
        </property>
        <property>
               <name>yarn.resourcemanager.scheduler.address</name>
               <value>Hadoop-NN-01:8030</value>
        </property>
        <property>
               <name>yarn.resourcemanager.resource-tracker.address</name>
               <value>Hadoop-NN-01:8031</value>
        </property>
        <property>
               <name>yarn.resourcemanager.admin.address</name>
               <value>Hadoop-NN-01:8033</value>
        </property>
        <property>
               <name>yarn.resourcemanager.webapp.address</name>
               <value>Hadoop-NN-01:8088</value>
        </property>
        <property>
               <name>yarn.nodemanager.aux-services</name>
               <value>mapreduce_shuffle</value>
        </property>
        <property>
               <name>yarn.nodemanager.aux-services.mapreduce.shuffle.class</name>
               <value>org.apache.hadoop.mapred.ShuffleHandler</value>
        </property>
</configuration>

(6)修改 $HADOOP_HOME/etc/hadoop/ mapred-site.xml

<configuration>
        <property>
               <name>mapreduce.framework.name</name>
               <value>yarn</value>
        </property>
        <property>
               <name>mapreduce.jobhistory.address</name>
               <value>Hadoop-NN-01:10020</value>
        </property>
        <property>
               <name>mapreduce.jobhistory.webapp.address</name>
               <value>Hadoop-NN-01:19888</value>
        </property>
</configuration>

7)修改 $HADOOP_HOME/etc/hadoop/hadoop-env.sh

#--------------------Java Env------------------------------
export JAVA_HOME="/usr/java/jdk1.8.0_73"
#--------------------Hadoop Env----------------------------
#export HADOOP_PID_DIR=${HADOOP_PID_DIR}
export HADOOP_PREFIX="/home/hadoopuser/hadoop-2.6.0-cdh5.6.0"
#--------------------Hadoop Daemon Options-----------------
# export HADOOP_NAMENODE_OPTS="-Dhadoop.security.logger=${HADOOP_SECURITY_LOGGER:-INFO,RFAS} -Dhdfs.audit.logger=${HDFS_AUDIT_LOGGER:-INFO,NullAppender} $HADOOP_NAMENODE_OPTS"
# export HADOOP_DATANODE_OPTS="-Dhadoop.security.logger=ERROR,RFAS $HADOOP_DATANODE_OPTS"
#--------------------Hadoop Logs---------------------------
#export HADOOP_LOG_DIR=${HADOOP_LOG_DIR}/$USER
#--------------------SSH PORT-------------------------------
export HADOOP_SSH_OPTS="-p 6000"        #如果你修改了SSH登录端口,一定要修改此配置。

8)修改 $HADOOP_HOME/etc/hadoop/yarn-env.sh

#Yarn Daemon Options
#export YARN_RESOURCEMANAGER_OPTS
#export YARN_NODEMANAGER_OPTS
#export YARN_PROXYSERVER_OPTS
#export HADOOP_JOB_HISTORYSERVER_OPTS

#Yarn Logs
export YARN_LOG_DIR="/home/hadoopuser/hadoop-2.6.0-cdh5.6.0/logs"

3、分发程序

scp -r /home/hadoopuser/hadoop-2.6.0-cdh5.6.0 hadoopuser@Hadoop-DN-01:/home/hadoopuser
scp -r /home/hadoopuser/hadoop-2.6.0-cdh5.6.0 hadoopuser@Hadoop-DN-02:/home/hadoopuser

 

4、格式化NameNode

[hadoopuser@Linux01 hadoop-2.6.0-cdh5.6.0]$ hadoop namenode -format

5、启动JournalNode

[hadoopuser@Linux01 hadoop-2.6.0-cdh5.6.0]$ hadoop-daemon.sh start journalnode starting journalnode, logging to /home/hadoopuser/hadoop-2.6.0-cdh5.6.0/logs/hadoop-puppet-journalnode-BigData-03.out

验证JournalNode

[hadoopuser@Linux01 hadoop-2.6.0-cdh5.6.0]$ jps

9076 Jps
9029 JournalNode

6、启动HDFS

集群启动法:Hadoop-NN-01: start-dfs.sh

[hadoopuser@Linux01 hadoop-2.6.0-cdh5.6.0]$ start-dfs.sh

单进程启动法:

<1>NameNode(Hadoop-NN-01,Hadoop-NN-02):hadoop-daemon.sh start namenode

<2>DataNode(Hadoop-DN-01,Hadoop-DN-02,Hadoop-DN-03):hadoop-daemon.sh start datanode

<3>JournalNode(Hadoop-DN-01,Hadoop-DN-02,Hadoop-DN-03):hadoop-daemon.sh start journalnode

7、启动Yarn

<1>集群启动

Hadoop-NN-01启动Yarn,命令所在目录:$HADOOP_HOME/sbin

[hadoopuser@Linux01 hadoop-2.6.0-cdh5.6.0]$ start-yarn.sh

<2>单进程启动

ResourceManager(Hadoop-NN-01,Hadoop-NN-02):yarn-daemon.sh start resourcemanager

DataNode(Hadoop-DN-01,Hadoop-DN-02,Hadoop-DN-03):yarn-daemon.sh start nodemanager

验证(略)

下面关于Hadoop的文章您也可能喜欢,不妨看看:

Ubuntu14.04下Hadoop2.4.1单机/伪分布式安装配置教程  http://www.linuxidc.com/Linux/2015-02/113487.htm

CentOS安装和配置Hadoop2.2.0  http://www.linuxidc.com/Linux/2014-01/94685.htm

Ubuntu 13.04上搭建Hadoop环境 http://www.linuxidc.com/Linux/2013-06/86106.htm

Ubuntu 12.10 +Hadoop 1.2.1版本集群配置 http://www.linuxidc.com/Linux/2013-09/90600.htm

Ubuntu上搭建Hadoop环境(单机模式+伪分布模式) http://www.linuxidc.com/Linux/2013-01/77681.htm

Ubuntu下Hadoop环境的配置 http://www.linuxidc.com/Linux/2012-11/74539.htm

单机版搭建Hadoop环境图文教程详解 http://www.linuxidc.com/Linux/2012-02/53927.htm

更多Hadoop相关信息见Hadoop 专题页面 http://www.linuxidc.com/topicnews.aspx?tid=13

本文永久更新链接地址http://www.linuxidc.com/Linux/2016-05/131868.htm

linux
本文评论   查看全部评论 (0)
表情: 表情 姓名: 字数

       

评论声明
  • 尊重网上道德,遵守中华人民共和国的各项有关法律法规
  • 承担一切因您的行为而直接或间接导致的民事或刑事法律责任
  • 本站管理人员有权保留或删除其管辖留言中的任意内容
  • 本站有权在网站内转载或引用您的评论
  • 参与本评论即表明您已经阅读并接受上述条款