Hadoop-2.3.0-cdh5.0.1完全分布式环境搭建（NameNode,ResourceManager HA）

编写不易，转载请注明（http://shihlei.iteye.com/blog/2084711）！

说明

       本文搭建Hadoop CDH5.0.1 分布式系统，包括NameNode ，ResourceManger HA，忽略了Web Application Proxy 和Job HistoryServer。 

一概述

（一）HDFS

1）基础架构

（1）NameNode（Master）

• 命名空间管理：命名空间支持对HDFS中的目录、文件和块做类似文件系统的创建、修改、删除、列表文件和目录等基本操作。
• 块存储管理

（2）DataNode（Slaver）

namenode和client的指令进行存储或者检索block，并且周期性的向namenode节点报告它存了哪些文件的block

2）HA架构

 

 

使用Active NameNode，Standby NameNode 两个结点解决单点问题，两个结点通过JounalNode共享状态，通过ZKFC 选举Active ，监控状态，自动备援。

（1）Active NameNode：

接受client的RPC请求并处理，同时写自己的Editlog和共享存储上的Editlog，接收DataNode的Block report, block location updates和heartbeat；

（2）Standby NameNode：

      同样会接到来自DataNode的Block report, block location updates和heartbeat，同时会从共享存储的Editlog上读取并执行这些log操作，使得自己的NameNode中的元数据（Namespcae information + Block locations map）都是和Active NameNode中的元数据是同步的。所以说Standby模式的NameNode是一个热备（Hot Standby NameNode），一旦切换成Active模式，马上就可以提供NameNode服务

（3）JounalNode：

用于Active NameNode ， Standby NameNode 同步数据，本身由一组JounnalNode结点组成，该组结点基数个，支持Paxos协议，保证高可用，是CDH5唯一支持的共享方式（相对于CDH4 促在NFS共享方式）

（4）ZKFC：

监控NameNode进程，自动备援。

（二）YARN

1）基础架构

（1）ResourceManager(RM)

接收客户端任务请求，接收和监控NodeManager(NM)的资源情况汇报，负责资源的分配与调度，启动和监控ApplicationMaster(AM)。

（2）NodeManager

节点上的资源管理，启动Container运行task计算，上报资源、container情况给RM和任务处理情况给AM。

（3）ApplicationMaster

单个Application(Job)的task管理和调度，向RM进行资源的申请，向NM发出launch Container指令，接收NM的task处理状态信息。NodeManager

（4）Web Application Proxy

用于防止Yarn遭受Web攻击，本身是ResourceManager的一部分，可通过配置独立进程。ResourceManager Web的访问基于守信用户，当Application Master运行于一个非受信用户，其提供给ResourceManager的可能是非受信连接，Web Application Proxy可以阻止这种连接提供给RM。

（5）Job History Server

NodeManager在启动的时候会初始化LogAggregationService服务, 该服务会在把本机执行的container log (在container结束的时候)收集并存放到hdfs指定的目录下. ApplicationMaster会把jobhistory信息写到hdfs的jobhistory临时目录下, 并在结束的时候把jobhisoty移动到最终目录, 这样就同时支持了job的recovery.History会启动web和RPC服务, 用户可以通过网页或RPC方式获取作业的信息

2）HA架构

 

 

      ResourceManager HA 由一对Active，Standby结点构成，通过RMStateStore存储内部数据和主要应用的数据及标记。目前支持的可替代的RMStateStore实现有：基于内存的MemoryRMStateStore，基于文件系统的FileSystemRMStateStore，及基于zookeeper的ZKRMStateStore。

ResourceManager HA的架构模式同NameNode HA的架构模式基本一致，数据共享由RMStateStore，而ZKFC成为 ResourceManager进程的一个服务，非独立存在。

 二 规划

（一）版本

组件名	版本	说明
JRE	java version "1.7.0_60" Java(TM) SE Runtime Environment (build 1.7.0_60-b19) Java HotSpot(TM) Client VM (build 24.60-b09, mixed mode)
Hadoop	hadoop-2.3.0-cdh5.0.1.tar.gz	主程序包
Zookeeper	zookeeper-3.4.5-cdh5.0.1.tar.gz	热切,Yarn 存储数据使用的协调服务

（二）主机规划

IP	Host	部署模块	进程
8.8.8.11	Hadoop-NN-01	NameNode ResourceManager	NameNode DFSZKFailoverController ResourceManager
8.8.8.12	Hadoop-NN-02	NameNode ResourceManager	NameNode DFSZKFailoverController ResourceManager
8.8.8.13	Hadoop-DN-01 Zookeeper-01	DataNode NodeManager Zookeeper	DataNode NodeManager JournalNode QuorumPeerMain
8.8.8.14	Hadoop-DN-02 Zookeeper-02	DataNode NodeManager Zookeeper	DataNode NodeManager JournalNode QuorumPeerMain
8.8.8.15	Hadoop-DN-03 Zookeeper-03	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

（三）目录规划

名称	路径
$HADOOP_HOME	/home/zero/hadoop/hadoop-2.3.0-cdh5.0.1
Data	$ HADOOP_HOME/data
Log	$ HADOOP_HOME/logs

 三 环境准备

1）关闭防火墙

root 用户：

[root@CentOS-Cluster-01 hadoop-2.3.0-cdh5.0.1]# service iptables stop iptables: Flushing firewall rules: [  OK  ] iptables: Setting chains to policy ACCEPT: filter [  OK  ] iptables: Unloading modules: [  OK  ]

验证：

[root@CentOS-Cluster-01 hadoop-2.3.0-cdh5.0.1]# service  iptables status iptables: Firewall is not running.

2）安装JRE：略

3）安装Zookeeper ：参见《Zookeeper-3.4.5-cdh5.0.1 单机模式、副本 ...》

4）配置SSH互信：

（1）Hadoop-NN-01创建密钥：

[zero@CentOS-Cluster-01 ~]$ ssh-keygen Generating public/private rsa key pair. Enter file in which to save the key (/home/zero/.ssh/id_rsa): Created directory '/home/zero/.ssh'. Enter passphrase (empty for no passphrase): Enter same passphrase again: Your identification has been saved in /home/zero/.ssh/id_rsa. Your public key has been saved in /home/zero/.ssh/id_rsa.pub. The key fingerprint is: 28:0a:29:1d:98:56:55:db:ec:83:93:56:8a:0f:6c:ea zero@CentOS-Cluster-01 The key's randomart image is: +--[ RSA 2048]----+ |   .....         | | o.     +        | |o..    . +       | |.o .. ..*        | |+ . .=.*So       | |.. .o.+ . .      | |  ..   .         | |  .              | |   E             | +-----------------+

（2）分发密钥：

[zero@CentOS-Cluster-01 ~]$ ssh-copy-id -i ~/.ssh/id_rsa.pub zero@Hadoop-NN-01 The authenticity of host 'hadoop-nn-01 (8.8.8.11)' can't be established. RSA key fingerprint is a6:11:09:49:8c:fe:b2:fb:49:d5:01:fa:13:1b:32:24. Are you sure you want to continue connecting (yes/no)? yes Warning: Permanently added 'hadoop-nn-01,8.8.8.11' (RSA) to the list of known hosts. puppet@hadoop-nn-01's password: Permission denied, please try again. puppet@hadoop-nn-01's password: [zero@CentOS-Cluster-01 ~]$  ssh-copy-id -i ~/.ssh/id_rsa.pub zero@Hadoop-NN-01 zero@hadoop-nn-01's password: Now try logging into the machine, with "ssh 'zero@Hadoop-NN-01'", and check in:     .ssh/authorized_keys   to make sure we haven't added extra keys that you weren't expecting. [zero@CentOS-Cluster-01 ~]$  ssh-copy-id -i ~/.ssh/id_rsa.pub zero@Hadoop-NN-02 （…略…） [zero@CentOS-Cluster-01 ~]$  ssh-copy-id -i ~/.ssh/id_rsa.pub zero@Hadoop-DN-01 （…略…） [zero@CentOS-Cluster-01 ~]$  ssh-copy-id -i ~/.ssh/id_rsa.pub zero@Hadoop-DN-02 （…略…） [zero@CentOS-Cluster-01 ~]$  ssh-copy-id -i ~/.ssh/id_rsa.pub zero@Hadoop-DN-03 （…略…）

（3）验证：

[zero@CentOS-Cluster-01 ~]$ ssh Hadoop-NN-01 Last login: Sun Jun 22 19:56:23 2014 from 8.8.8.1 [zero@CentOS-Cluster-01 ~]$ exit logout Connection to Hadoop-NN-01 closed. [zero@CentOS-Cluster-01 ~]$ ssh Hadoop-NN-02 Last login: Sun Jun 22 20:03:31 2014 from 8.8.8.1 [zero@CentOS-Cluster-03 ~]$ exit logout Connection to Hadoop-NN-02 closed. [zero@CentOS-Cluster-01 ~]$ ssh Hadoop-DN-01 Last login: Mon Jun 23 02:00:07 2014 from centos_cluster_01 [zero@CentOS-Cluster-03 ~]$ exit logout Connection to Hadoop-DN-01 closed. [zero@CentOS-Cluster-01 ~]$ ssh Hadoop-DN-02 Last login: Sun Jun 22 20:07:03 2014 from 8.8.8.1 [zero@CentOS-Cluster-04 ~]$ exit logout Connection to Hadoop-DN-02 closed. [zero@CentOS-Cluster-01 ~]$ ssh Hadoop-DN-03 Last login: Sun Jun 22 20:07:05 2014 from 8.8.8.1 [zero@CentOS-Cluster-05 ~]$ exit logout Connection to Hadoop-DN-03 closed.

5）配置/etc/hosts并分发：

[root@CentOS-Cluster-01 zero]# vi /etc/hosts 127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4 ::1         localhost localhost.localdomain localhost6 localhost6.localdomain6 8.8.8.10 CentOS-StandAlone 8.8.8.11 CentOS-Cluster-01 Hadoop-NN-01 8.8.8.12 CentOS-Cluster-02 Hadoop-NN-02 8.8.8.13 CentOS-Cluster-03 Hadoop-DN-01 Zookeeper-01 8.8.8.14 CentOS-Cluster-04 Hadoop-DN-02 Zookeeper-02 8.8.8.15 CentOS-Cluster-05 Hadoop-DN-03 Zookeeper-03

6）配置环境变量：vi ~/.bashrc 然后 source ~/.bashrc

[zero@CentOS-Cluster-01 ~]$ vi ~/.bashrc ……   # hadoop cdh5 export HADOOP_HOME=/home/zero/hadoop/hadoop-2.3.0-cdh5.0.1 export PATH=$PATH:$HADOOP_HOME/sbin:$HADOOP_HOME/bin [zero@CentOS-Cluster-01 ~]$ source ~/.bashrc

四 安装

1）解压

[puppet@BigData-01 cdh4.4]$ tar -xvf hadoop-2.0.0-cdh4.4.0.tar.gz

2）修改配置文件

说明：

配置名称	类型	说明
hadoop-env.sh	Bash脚本	Hadoop运行环境变量设置
core-site.xml	xml	配置Hadoop core，如IO
hdfs-site.xml	xml	配置HDFS守护进程：NN、JN、DN
yarn-env.sh	Bash脚本	Yarn运行环境变量设置
yarn-site.xml	xml	Yarn框架配置环境
mapred-site.xml	xml	MR属性设置
capacity-scheduler.xml	xml	Yarn调度属性设置
container-executor.cfg	Cfg	Yarn Container配置
mapred-queues.xml	xml	MR队列设置
hadoop-metrics.properties	Java属性	Hadoop Metrics配置
hadoop-metrics2.properties	Java属性	Hadoop Metrics配置
slaves	Plain Text	DN节点配置
exclude	Plain Text	移除DN节点配置文件
log4j.properties		系统日志设置
configuration.xsl

（1）修改$HADOOP_HOME/etc/hadoop-env.sh：

Shell代码  

1. #--------------------Java Env------------------------------  
2. export JAVA_HOME="/usr/runtime/java/jdk1.7.0_60"  
3.   
4. #--------------------Hadoop Env------------------------------  
5. #export HADOOP_PID_DIR=  
6. export HADOOP_PREFIX="/home/zero/hadoop/hadoop-2.3.0-cdh5.0.1"  
7.   
8. #--------------------Hadoop Daemon Options-----------------  
9. #export HADOOP_NAMENODE_OPTS="-XX:+UseParallelGC ${HADOOP_NAMENODE_OPTS}"  
10. #export HADOOP_DATANODE_OPTS=  
11.   
12. #--------------------Hadoop Logs---------------------------  
13. #export HADOOP_LOG_DIR=  

（2）修改$HADOOP_HOME/etc/hadoop-site.xml

Xml代码  

1. <?xml version="1.0" encoding="UTF-8"?>  
2. <?xml-stylesheet type="text/xsl" href="configuration.xsl"?>  
3. <configuration>  
4.     <!--Yarn 需要使用 fs.defaultFS 指定NameNode URI -->  
5.     <property>  
6.         <name>fs.defaultFS</name>  
7.         <value>hdfs://mycluster</value>  
8.     </property>  
9.     <!--HDFS超级用户 -->  
10.     <property>  
11.         <name>dfs.permissions.superusergroup</name>  
12.         <value>zero</value>  
13.     </property>  
14.     <!--==============================Trash机制======================================= -->  
15.     <property>  
16.         <!--多长时间创建CheckPoint NameNode截点上运行的CheckPointer 从Current文件夹创建CheckPoint;默认：0 由fs.trash.interval项指定 -->  
17.         <name>fs.trash.checkpoint.interval</name>  
18.         <value>0</value>  
19.     </property>  
20.     <property>  
21.         <!--多少分钟.Trash下的CheckPoint目录会被删除,该配置服务器设置优先级大于客户端，默认：0 不删除 -->  
22.         <name>fs.trash.interval</name>  
23.         <value>1440</value>  
24.     </property>  
25. </configuration>  

 （3）修改$HADOOP_HOME/etc/hdfs-site.xml

Xml代码  

1. <?xml version="1.0" encoding="UTF-8"?>  
2. <?xml-stylesheet type="text/xsl" href="configuration.xsl"?>  
3. <configuration>  
4.     <!--开启web hdfs -->  
5.     <property>  
6.         <name>dfs.webhdfs.enabled</name>  
7.         <value>true</value>  
8.     </property>  
9.     <property>  
10.         <name>dfs.namenode.name.dir</name>  
11.         <value>/home/zero/hadoop/hadoop-2.3.0-cdh5.0.1/data/dfs/name</value>  
12.         <description> namenode 存放name table(fsimage)本地目录（需要修改）</description>  
13.     </property>  
14.     <property>  
15.         <name>dfs.namenode.edits.dir</name>  
16.         <value>${dfs.namenode.name.dir}</value>  
17.         <description>namenode粗放 transaction file(edits)本地目录（需要修改）</description>  
18.     </property>  
19.     <property>  
20.         <name>dfs.datanode.data.dir</name>  
21.         <value>/home/zero/hadoop/hadoop-2.3.0-cdh5.0.1/data/dfs/data</value>  
22.         <description>datanode存放block本地目录（需要修改）</description>  
23.     </property>  
24.     <property>  
25.         <name>dfs.replication</name>  
26.         <value>1</value>  
27.     </property>  
28.     <!-- 块大小 （默认） -->  
29.     <property>  
30.         <name>dfs.blocksize</name>  
31.         <value>268435456</value>  
32.     </property>  
33.     <!--======================================================================= -->  
34.     <!--HDFS高可用配置 -->  
35.     <!--nameservices逻辑名 -->  
36.     <property>  
37.         <name>dfs.nameservices</name>  
38.         <value>mycluster</value>  
39.     </property>  
40.     <property>  
41.         <!--设置NameNode IDs 此版本最大只支持两个NameNode -->  
42.         <name>dfs.ha.namenodes.mycluster</name>  
43.         <value>nn1,nn2</value>  
44.     </property>  
45.     <!-- Hdfs HA: dfs.namenode.rpc-address.[nameservice ID] rpc 通信地址 -->  
46.     <property>  
47.         <name>dfs.namenode.rpc-address.mycluster.nn1</name>  
48.         <value>Hadoop-NN-01:8020</value>  
49.     </property>  
50.     <property>  
51.         <name>dfs.namenode.rpc-address.mycluster.nn2</name>  
52.         <value>Hadoop-NN-02:8020</value>  
53.     </property>  
54.     <!-- Hdfs HA: dfs.namenode.http-address.[nameservice ID] http 通信地址 -->  
55.     <property>  
56.         <name>dfs.namenode.http-address.mycluster.nn1</name>  
57.         <value>Hadoop-NN-01:50070</value>  
58.     </property>  
59.     <property>  
60.         <name>dfs.namenode.http-address.mycluster.nn2</name>  
61.         <value>Hadoop-NN-02:50070</value>  
62.     </property>  
63.   
64.     <!--==================Namenode editlog同步 ============================================ -->  
65.     <!--保证数据恢复 -->  
66.     <property>  
67.         <name>dfs.journalnode.http-address</name>  
68.         <value>0.0.0.0:8480</value>  
69.     </property>  
70.     <property>  
71.         <name>dfs.journalnode.rpc-address</name>  
72.         <value>0.0.0.0:8485</value>  
73.     </property>  
74.     <property>  
75.         <!--设置JournalNode服务器地址，QuorumJournalManager 用于存储editlog -->  
76.         <!--格式：qjournal://<host1:port1>;<host2:port2>;<host3:port3>/<journalId> 端口同journalnode.rpc-address -->  
77.         <name>dfs.namenode.shared.edits.dir</name>  
78.         <value>qjournal://Hadoop-DN-01:8485;Hadoop-DN-02:8485;Hadoop-DN-03:8485/mycluster</value>  
79.     </property>  
80.     <property>  
81.         <!--JournalNode存放数据地址 -->  
82.         <name>dfs.journalnode.edits.dir</name>  
83.         <value>/home/zero/hadoop/hadoop-2.3.0-cdh5.0.1/data/dfs/jn</value>  
84.     </property>  
85.     <!--==================DataNode editlog同步 ============================================ -->  
86.     <property>  
87.         <!--DataNode,Client连接Namenode识别选择Active NameNode策略 -->  
88.         <name>dfs.client.failover.proxy.provider.mycluster</name>  
89.         <value>org.apache.hadoop.hdfs.server.namenode.ha.ConfiguredFailoverProxyProvider</value>  
90.     </property>  
91.     <!--==================Namenode fencing：=============================================== -->  
92.     <!--Failover后防止停掉的Namenode启动，造成两个服务 -->  
93.     <property>  
94.         <name>dfs.ha.fencing.methods</name>  
95.         <value>sshfence</value>  
96.     </property>  
97.     <property>  
98.         <name>dfs.ha.fencing.ssh.private-key-files</name>  
99.         <value>/home/zero/.ssh/id_rsa</value>  
100.     </property>  
101.     <property>  
102.         <!--多少milliseconds 认为fencing失败 -->  
103.         <name>dfs.ha.fencing.ssh.connect-timeout</name>  
104.         <value>30000</value>  
105.     </property>  
106.   
107.     <!--==================NameNode auto failover base ZKFC and Zookeeper====================== -->  
108.     <!--开启基于Zookeeper及ZKFC进程的自动备援设置,监视进程是否死掉 -->  
109.     <property>  
110.         <name>dfs.ha.automatic-failover.enabled</name>  
111.         <value>true</value>  
112.     </property>  
113.     <property>  
114.         <name>ha.zookeeper.quorum</name>  
115.         <value>Zookeeper-01:2181,Zookeeper-02:2181,Zookeeper-03:2181</value>  
116.     </property>  
117.     <property>  
118.         <!--指定ZooKeeper超时间隔，单位毫秒 -->  
119.         <name>ha.zookeeper.session-timeout.ms</name>  
120.         <value>2000</value>  
121.     </property>  
122. </configuration>  

 （4）修改$HADOOP_HOME/etc/yarn-env.sh

Shell代码  

1. #Yarn Daemon Options  
2. #export YARN_RESOURCEMANAGER_OPTS  
3. #export YARN_NODEMANAGER_OPTS  
4. #export YARN_PROXYSERVER_OPTS  
5. #export HADOOP_JOB_HISTORYSERVER_OPTS  
6.   
7. #Yarn Logs  
8. export YARN_LOG_DIR=” /home/zero/hadoop/hadoop-2.3.0-cdh5.0.1/logs”  

 （5）$HADOOP_HOEM/etc/mapred-site.xml

Xml代码  

1. <configuration>  
2.     <!-- 配置 MapReduce Applications -->  
3.     <property>  
4.         <name>mapreduce.framework.name</name>  
5.         <value>yarn</value>  
6.     </property>  
7.     <!-- JobHistory Server ============================================================== -->  
8.     <!-- 配置 MapReduce JobHistory Server 地址 ，默认端口10020 -->  
9.     <property>  
10.         <name>mapreduce.jobhistory.address</name>  
11.         <value>0.0.0.0:10020</value>  
12.     </property>  
13.     <!-- 配置 MapReduce JobHistory Server web ui 地址， 默认端口19888 -->  
14.     <property>  
15.         <name>mapreduce.jobhistory.webapp.address</name>  
16.         <value>0.0.0.0:19888</value>  
17.     </property>  
18. </configuration>  

 （6）修改$HADOOP_HOME/etc/yarn-site.xml

Xml代码  

1. <configuration>  
2.     <!-- nodemanager 配置 ================================================= -->  
3.     <property>  
4.         <name>yarn.nodemanager.aux-services</name>  
5.         <value>mapreduce_shuffle</value>  
6.     </property>  
7.     <property>  
8.         <name>yarn.nodemanager.aux-services.mapreduce.shuffle.class</name>  
9.         <value>org.apache.hadoop.mapred.ShuffleHandler</value>  
10.     </property>  
11.     <property>  
12.         <description>Address where the localizer IPC is.</description>  
13.         <name>yarn.nodemanager.localizer.address</name>  
14.         <value>0.0.0.0:23344</value>  
15.     </property>  
16.     <property>  
17.         <description>NM Webapp address.</description>  
18.         <name>yarn.nodemanager.webapp.address</name>  
19.         <value>0.0.0.0:23999</value>  
20.     </property>  
21.   
22.     <!-- HA 配置 =============================================================== -->  
23.     <!-- Resource Manager Configs -->  
24.     <property>  
25.         <name>yarn.resourcemanager.connect.retry-interval.ms</name>  
26.         <value>2000</value>  
27.     </property>  
28.     <property>  
29.         <name>yarn.resourcemanager.ha.enabled</name>  
30.         <value>true</value>  
31.     </property>  
32.     <property>  
33.         <name>yarn.resourcemanager.ha.automatic-failover.enabled</name>  
34.         <value>true</value>  
35.     </property>  
36.     <!-- 使嵌入式自动故障转移。HA环境启动，与 ZKRMStateStore 配合 处理fencing -->  
37.     <property>  
38.         <name>yarn.resourcemanager.ha.automatic-failover.embedded</name>  
39.         <value>true</value>  
40.     </property>  
41.     <!-- 集群名称，确保HA选举时对应的集群 -->  
42.     <property>  
43.         <name>yarn.resourcemanager.cluster-id</name>  
44.         <value>yarn-cluster</value>  
45.     </property>  
46.     <property>  
47.         <name>yarn.resourcemanager.ha.rm-ids</name>  
48.         <value>rm1,rm2</value>  
49.     </property>  
50.     <!—这里RM主备结点需要单独指定,（可选）  
51.     <property>  
52.         <name>yarn.resourcemanager.ha.id</name>  
53.         <value>rm2</value>  
54. </property>  
55. -->  
56.     <property>  
57.         <name>yarn.resourcemanager.scheduler.class</name>  
58.         <value>org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler</value>  
59.     </property>  
60.     <property>  
61.         <name>yarn.resourcemanager.recovery.enabled</name>  
62.         <value>true</value>  
63.     </property>  
64.     <property>  
65.         <name>yarn.app.mapreduce.am.scheduler.connection.wait.interval-ms</name>  
66.         <value>5000</value>  
67.     </property>  
68.     <!-- ZKRMStateStore 配置 -->  
69.     <property>  
70.         <name>yarn.resourcemanager.store.class</name>  
71.         <value>org.apache.hadoop.yarn.server.resourcemanager.recovery.ZKRMStateStore</value>  
72.     </property>  
73.     <property>  
74.         <name>yarn.resourcemanager.zk-address</name>  
75.         <value>Zookeeper-01:2181,Zookeeper-02:2181,Zookeeper-03:2181</value>  
76.     </property>  
77.     <property>  
78.         <name>yarn.resourcemanager.zk.state-store.address</name>  
79.         <value>Zookeeper-01:2181,Zookeeper-02:2181,Zookeeper-03:2181</value>  
80.     </property>  
81.     <!-- Client访问RM的RPC地址 (applications manager interface) -->  
82.     <property>  
83.         <name>yarn.resourcemanager.address.rm1</name>  
84.         <value>Hadoop-NN-01:23140</value>  
85.     </property>  
86.     <property>  
87.         <name>yarn.resourcemanager.address.rm2</name>  
88.         <value>Hadoop-NN-02:23140</value>  
89.     </property>  
90.     <!-- AM访问RM的RPC地址(scheduler interface) -->  
91.     <property>  
92.         <name>yarn.resourcemanager.scheduler.address.rm1</name>  
93.         <value>Hadoop-NN-01:23130</value>  
94.     </property>  
95.     <property>  
96.         <name>yarn.resourcemanager.scheduler.address.rm2</name>  
97.         <value>Hadoop-NN-02:23130</value>  
98.     </property>  
99.     <!-- RM admin interface -->  
100.     <property>  
101.         <name>yarn.resourcemanager.admin.address.rm1</name>  
102.         <value>Hadoop-NN-01:23141</value>  
103.     </property>  
104.     <property>  
105.         <name>yarn.resourcemanager.admin.address.rm2</name>  
106.         <value>Hadoop-NN-02:23141</value>  
107.     </property>  
108.     <!--NM访问RM的RPC端口 -->  
109.     <property>  
110.         <name>yarn.resourcemanager.resource-tracker.address.rm1</name>  
111.         <value>Hadoop-NN-01:23125</value>  
112.     </property>  
113.     <property>  
114.         <name>yarn.resourcemanager.resource-tracker.address.rm2</name>  
115.         <value>Hadoop-NN-02:23125</value>  
116.     </property>  
117.     <!-- RM web application 地址 -->  
118.     <property>  
119.         <name>yarn.resourcemanager.webapp.address.rm1</name>  
120.         <value>Hadoop-NN-01:23188</value>  
121.     </property>  
122.     <property>  
123.         <name>yarn.resourcemanager.webapp.address.rm2</name>  
124.         <value>Hadoop-NN-02:23188</value>  
125.     </property>  
126.     <property>  
127.         <name>yarn.resourcemanager.webapp.https.address.rm1</name>  
128.         <value>Hadoop-NN-01:23189</value>  
129.     </property>  
130.     <property>  
131.         <name>yarn.resourcemanager.webapp.https.address.rm2</name>  
132.         <value>Hadoop-NN-02:23189</value>  
133.     </property>  
134. </configuration>  

（7）修改slaves

[zero@CentOS-Cluster-01  hadoop]$ vi slaves Hadoop-DN-01 Hadoop-DN-02 Hadoop-DN-03

3）分发程序

[zero@CentOS-Cluster-01 ~]$ scp -r /home/zero/hadoop/hadoop-2.3.0-cdh5.0.1 zero@Hadoop-NN-02: /home/zero/hadoop/ ……. [zero@CentOS-Cluster-01 ~]$ scp -r /home/zero/hadoop/hadoop-2.3.0-cdh5.0.1 zero@Hadoop-DN-01: /home/zero/hadoop/ ……. [zero@CentOS-Cluster-01 ~]$ scp -r /home/zero/hadoop/hadoop-2.3.0-cdh5.0.1 zero@Hadoop-DN-02: /home/zero/hadoop/ ……. [zero@CentOS-Cluster-01 ~]$ scp -r /home/zero/hadoop/hadoop-2.3.0-cdh5.0.1 zero@Hadoop-DN-03: /home/zero/hadoop/ …….

4）启动HDFS

（1）启动JournalNode

格式化前需要在JournalNode结点上启动JournalNode：

[zero@CentOS-Cluster-03 hadoop-2.3.0-cdh5.0.1]$ hadoop-daemon.sh start journalnode starting journalnode, logging to /home/puppet/hadoop/cdh4.4/hadoop-2.0.0-cdh4.4.0/logs/hadoop-puppet-journalnode-BigData-03.out

验证JournalNode：

[zero@CentOS-Cluster-03 hadoop-2.3.0-cdh5.0.1]$ jps 25918 QuorumPeerMain 16728 JournalNode 16772 Jps

（2）NameNode 格式化：

结点Hadoop-NN-01：hdfs namenode -format

[zero@CentOS-Cluster-01 hadoop-2.3.0-cdh5.0.1]$ hdfs namenode -format 14/06/23 21:02:49 INFO namenode.NameNode: STARTUP_MSG: /************************************************************ STARTUP_MSG: Starting NameNode STARTUP_MSG:   host = CentOS-Cluster-01/8.8.8.11 STARTUP_MSG:   args = [-format] STARTUP_MSG:   version = 2.3.0-cdh5.0.1 STARTUP_MSG:   classpath =… STARTUP_MSG:   build =… STARTUP_MSG:   java = 1.7.0_60 ************************************************************/  (…略…) 14/06/23 21:02:57 INFO common.Storage: Storage directory /home/zero/hadoop/hadoop-2.3.0-cdh5.0.1/data/dfs/name has been successfully formatted. (…略…) 14/06/23 21:02:59 INFO namenode.NameNode: SHUTDOWN_MSG: /************************************************************ SHUTDOWN_MSG: Shutting down NameNode at CentOS-Cluster-01/8.8.8.11 ************************************************************/

（3）同步NameNode元数据：

同步Hadoop-NN-01元数据到Hadoop-NN-02

主要是：dfs.namenode.name.dir，dfs.namenode.edits.dir还应该确保共享存储目录下(dfs.namenode.shared.edits.dir ) 包含NameNode 所有的元数据。

[puppet@BigData-01 hadoop-2.0.0-cdh4.4.0]$ scp -r data/ zero@Hadoop-NN-02:/home/zero/hadoop/hadoop-2.3.0-cdh5.0.1 seen_txid                           100%    2     0.0KB/s   00:00    VERSION                            100%  201     0.2KB/s   00:00    seen_txid                           100%    2     0.0KB/s   00:00    fsimage_0000000000000000000.md5    100%   62     0.1KB/s   00:00    fsimage_0000000000000000000         100%  121     0.1KB/s   00:00    VERSION                            100%  201     0.2KB/s   00:00

（4）初始化ZFCK：

创建ZNode，记录状态信息。

结点Hadoop-NN-01：hdfs zkfc -formatZK

[zero@CentOS-Cluster-01 hadoop-2.3.0-cdh5.0.1]$ hdfs zkfc -formatZK 14/06/23 23:22:28 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable 14/06/23 23:22:28 INFO tools.DFSZKFailoverController: Failover controller configured for NameNode NameNode at Hadoop-NN-01/8.8.8.11:8020 14/06/23 23:22:28 INFO zookeeper.ZooKeeper: Client environment:zookeeper.version=3.4.5-cdh5.0.1--1, built on 05/06/2014 18:50 GMT 14/06/23 23:22:28 INFO zookeeper.ZooKeeper: Client environment:host.name=CentOS-Cluster-01 14/06/23 23:22:28 INFO zookeeper.ZooKeeper: Client environment:java.version=1.7.0_60 14/06/23 23:22:28 INFO zookeeper.ZooKeeper: Client environment:java.vendor=Oracle Corporation 14/06/23 23:22:28 INFO zookeeper.ZooKeeper: Client environment:java.home=/usr/runtime/java/jdk1.7.0_60/jre 14/06/23 23:22:28 INFO zookeeper.ZooKeeper: Client environment:java.class.path=... 14/06/23 23:22:29 INFO zookeeper.ZooKeeper: Client environment:java.library.path=/home/zero/hadoop/hadoop-2.3.0-cdh5.0.1/lib/native 14/06/23 23:22:29 INFO zookeeper.ZooKeeper: Client environment:java.io.tmpdir=/tmp 14/06/23 23:22:29 INFO zookeeper.ZooKeeper: Client environment:java.compiler=<NA> 14/06/23 23:22:29 INFO zookeeper.ZooKeeper: Client environment:os.name=Linux 14/06/23 23:22:29 INFO zookeeper.ZooKeeper: Client environment:os.arch=i386 14/06/23 23:22:29 INFO zookeeper.ZooKeeper: Client environment:os.version=2.6.32-431.el6.i686 14/06/23 23:22:29 INFO zookeeper.ZooKeeper: Client environment:user.name=zero 14/06/23 23:22:29 INFO zookeeper.ZooKeeper: Client environment:user.home=/home/zero 14/06/23 23:22:29 INFO zookeeper.ZooKeeper: Client environment:user.dir=/home/zero/hadoop/hadoop-2.3.0-cdh5.0.1 14/06/23 23:22:29 INFO zookeeper.ZooKeeper: Initiating client connection, connectString=Zookeeper-01:2181,Zookeeper-02:2181,Zookeeper-03:2181 sessionTimeout=2000 watcher=org.apache.hadoop.ha.ActiveStandbyElector$WatcherWithClientRef@150c2b0 14/06/23 23:22:29 INFO zookeeper.ClientCnxn: Opening socket connection to server CentOS-Cluster-03/8.8.8.13:2181. Will not attempt to authenticate using SASL (unknown error) 14/06/23 23:22:29 INFO zookeeper.ClientCnxn: Socket connection established to CentOS-Cluster-03/8.8.8.13:2181, initiating session 14/06/23 23:22:29 INFO zookeeper.ClientCnxn: Session establishment complete on server CentOS-Cluster-03/8.8.8.13:2181, sessionid = 0x146cc0517b30002, negotiated timeout = 4000 14/06/23 23:22:29 INFO ha.ActiveStandbyElector: Session connected. 14/06/23 23:22:30 INFO ha.ActiveStandbyElector: Successfully created /hadoop-ha/mycluster in ZK. 14/06/23 23:22:30 INFO zookeeper.ZooKeeper: Session: 0x146cc0517b30002 closed

（5）启动

集群启动法：Hadoop-NN-01:

[zero@CentOS-Cluster-01 hadoop-2.3.0-cdh5.0.1]$ start-dfs.sh 14/04/23 01:54:58 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable Starting namenodes on [Hadoop-NN-01 Hadoop-NN-02] Hadoop-NN-01: starting namenode, logging to /home/puppet/hadoop/cdh4.4/hadoop-2.0.0-cdh4.4.0/logs/hadoop-puppet-namenode-BigData-01.out Hadoop-NN-02: starting namenode, logging to /home/puppet/hadoop/cdh4.4/hadoop-2.0.0-cdh4.4.0/logs/hadoop-puppet-namenode-BigData-02.out Hadoop-DN-01: starting datanode, logging to /home/puppet/hadoop/cdh4.4/hadoop-2.0.0-cdh4.4.0/logs/hadoop-puppet-datanode-BigData-03.out Hadoop-DN-02: starting datanode, logging to /home/puppet/hadoop/cdh4.4/hadoop-2.0.0-cdh4.4.0/logs/hadoop-puppet-datanode-BigData-04.out Hadoop-DN-03: starting datanode, logging to /home/puppet/hadoop/cdh4.4/hadoop-2.0.0-cdh4.4.0/logs/hadoop-puppet-datanode-BigData-05.out Starting journal nodes [Hadoop-DN-01 Hadoop-DN-02 Hadoop-DN-03] Hadoop-DN-01: starting journalnode, logging to /home/puppet/hadoop/cdh4.4/hadoop-2.0.0-cdh4.4.0/logs/hadoop-puppet-journalnode-BigData-03.out Hadoop-DN-03: starting journalnode, logging to /home/puppet/hadoop/cdh4.4/hadoop-2.0.0-cdh4.4.0/logs/hadoop-puppet-journalnode-BigData-05.out Hadoop-DN-02: starting journalnode, logging to /home/puppet/hadoop/cdh4.4/hadoop-2.0.0-cdh4.4.0/logs/hadoop-puppet-journalnode-BigData-04.out 14/04/23 01:55:29 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable Starting ZK Failover Controllers on NN hosts [Hadoop-NN-01 Hadoop-NN-02] Hadoop-NN-01: starting zkfc, logging to /home/puppet/hadoop/cdh4.4/hadoop-2.0.0-cdh4.4.0/logs/hadoop-puppet-zkfc-BigData-01.out Hadoop-NN-02: starting zkfc, logging to /home/puppet/hadoop/cdh4.4/hadoop-2.0.0-cdh4.4.0/logs/hadoop-puppet-zkfc-BigData-02.out

单进程启动法：

<1>NameNode（Hadoop-NN-01，Hadoop-NN-02）：

[zero@CentOS-Cluster-01 hadoop-2.3.0-cdh5.0.1]$ hadoop-daemon.sh start namenode

<2>DataNode（Hadoop-DN-01，Hadoop-DN-02，Hadoop-DN-03）：

[zero@CentOS-Cluster-01 hadoop-2.3.0-cdh5.0.1]$ hadoop-daemon.sh start datanode

<3>JournalNode（Hadoop-DN-01，Hadoop-DN-02，Hadoop-DN-03）：

[zero@CentOS-Cluster-01 hadoop-2.3.0-cdh5.0.1]$ hadoop-daemon.sh start journalnode

<4>ZKFC（Hadoop-NN-01，Hadoop-NN-02）：

[zero@CentOS-Cluster-01 hadoop-2.3.0-cdh5.0.1]$ hadoop-daemon.sh start zkfc

（6）验证

<1>进程

NameNode：

[zero@CentOS-Cluster-01 hadoop-2.3.0-cdh5.0.1]$ jps 4001 NameNode 4290 DFSZKFailoverController 4415 Jps

DataNode：

[zero@CentOS-Cluster-03 hadoop-2.3.0-cdh5.0.1]$ jps 25918 QuorumPeerMain 19217 JournalNode 19143 DataNode 19351 Jps

<2>页面:

Active结点:http://8.8.8.10:50070

 JSP:

 StandBy结点：

 JSP:

 （7）停止:stop-dfs.sh

5）启动Yarn

（1）启动

<1>集群启动

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

[zero@CentOS-Cluster-01 hadoop]$ start-yarn.sh starting yarn daemons starting resourcemanager, logging to /home/zero/hadoop/hadoop-2.3.0-cdh5.0.1/logs/yarn-zero-resourcemanager-CentOS-Cluster-01.out Hadoop-DN-02: starting nodemanager, logging to /home/zero/hadoop/hadoop-2.3.0-cdh5.0.1/logs/yarn-zero-nodemanager-CentOS-Cluster-04.out Hadoop-DN-03: starting nodemanager, logging to /home/zero/hadoop/hadoop-2.3.0-cdh5.0.1/logs/yarn-zero-nodemanager-CentOS-Cluster-05.out Hadoop-DN-01: starting nodemanager, logging to /home/zero/hadoop/hadoop-2.3.0-cdh5.0.1/logs/yarn-zero-nodemanager-CentOS-Cluster-03.out

Hadoop-NN-02备机启动RM：

[zero@CentOS-Cluster-02 hadoop]$ yarn-daemon.sh start resourcemanager starting resourcemanager, logging to /home/zero/hadoop/hadoop-2.3.0-cdh5.0.1/logs/yarn-zero-resourcemanager-CentOS-Cluster-02.o

<2>单进程启动

ResourceManager（Hadoop-NN-01，Hadoop-NN-02）：

[zero@CentOS-Cluster-01 hadoop-2.3.0-cdh5.0.1]$ yarn-daemon.sh start resourcemanager

DataNode（Hadoop-DN-01，Hadoop-DN-02，Hadoop-DN-03）：

[zero@CentOS-Cluster-03 hadoop-2.3.0-cdh5.0.1]$ yarn-daemon.sh start nodemanager

（2）验证

<1>进程：

JobTracker：Hadoop-NN-01，Hadoop-NN-02

[zero@CentOS-Cluster-01 hadoop]$ jps 7454 NameNode 14684 Jps 14617 ResourceManager 7729 DFSZKFailoverController

TaskTracker：Hadoop-DN-01，Hadoop-DN-02，Hadoop-DN-03

[zero@CentOS-Cluster-03 ~]$ jps 8965 Jps 5228 JournalNode 5137 DataNode 2514 QuorumPeerMain 8935 NodeManager

<2>页面

ResourceManger（Active）：8.8.8.11:23188

 

ResourceManager（Standby）：8.8.8.12:23188 

 

 

（3）停止

Hadoop-NN-01：stop-yarn.sh

Hadoop-NN-02：yarn-daeman.sh stop resourcemanager

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