1）部署Agent
1) 注册并安装agent
http://192.168.80.144:8080/views/ADMIN_VIEW/2.2.1.0/INSTANCE/#/
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2）为集群取个名字，我这里，就直接取为hdpCluster，然后点击next
http://192.168.80.144:8080/#/installer/step0
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3)选择HDP2.4的版本并选择高级配置，注意和自己下载安装的版本一致。
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http://192.168.80.144:8080/#/installer/step1
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需要改成以下地址
http://192.168.80.144/hdp2.4/centos6/
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4）配置本地源地址并点击next
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5）添加目标主机的主机名并配置ambari-server的私钥，保证其他节点能够和ambari-server免密码通信，并选择对应的hadoop用户（因为我们是在hadoop用户下配置的SSH免密码登录）然后点击注册。
http://192.168.80.144:8080/#/installer/step2
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[hadoop@ambari01 ~]$ pwd
/home/hadoop
[hadoop@ambari01 ~]$ cd .ssh
[hadoop@ambari01 .ssh]$ pwd
/home/hadoop/.ssh
[hadoop@ambari01 .ssh]$ ll
total 16
-rw-------. 1 hadoop hadoop 1588 Mar 30 17:00 authorized_keys
-rw-------. 1 hadoop hadoop 1675 Mar 30 16:15 id_rsa
-rw-------. 1 hadoop hadoop 397 Mar 30 16:15 id_rsa.pub
-rw-r--r--. 1 hadoop hadoop 1620 Mar 30 17:49 known_hosts
[hadoop@ambari01 .ssh]$ cat id_rsa
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-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----
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经过一段时间后，![]()
那是因为，如下：
6）注册过程中可能会遇到一些问题，比如openssl的版本问题，这个时候我们只需要在对应节点上更新一下openssl的版本即可，然后重新注册。
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[hadoop@ambari02 .ssh]$ sudo rpm -qa | grep openssl
openssl-1.0.1e-15.el6.x86_64
[hadoop@ambari01 .ssh]$ sudo yum install openssl
Loaded plugins: fastestmirror, refresh-packagekit, security
Setting up Install Process
Loading mirror speeds from cached hostfile
* base: mirrors.zju.edu.cn
* extras: mirrors.zju.edu.cn
* updates: mirrors.zju.edu.cn
Resolving Dependencies
--> Running transaction check
---> Package openssl.x86_64 0:1.0.1e-15.el6 will be updated
---> Package openssl.x86_64 0:1.0.1e-48.el6_8.4 will be an update
--> Finished Dependency Resolution
Dependencies Resolved
===============================================================================================================================================================================================
Package Arch Version Repository Size
===============================================================================================================================================================================================
Updating:
openssl x86_64 1.0.1e-48.el6_8.4 updates 1.5 M
Transaction Summary
===============================================================================================================================================================================================
Upgrade 1 Package(s)
Total download size: 1.5 M
Is this ok [y/N]: y
Downloading Packages:
openssl-1.0.1e-48.el6_8.4.x86_64.rpm | 1.5 MB 00:01
Running rpm_check_debug
Running Transaction Test
Transaction Test Succeeded
Running Transaction
Updating : openssl-1.0.1e-48.el6_8.4.x86_64 1/2
Cleanup : openssl-1.0.1e-15.el6.x86_64 2/2
Verifying : openssl-1.0.1e-48.el6_8.4.x86_64 1/2
Verifying : openssl-1.0.1e-15.el6.x86_64 2/2
Updated:
openssl.x86_64 0:1.0.1e-48.el6_8.4
Complete!
[hadoop@ambari02 .ssh]$
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然后，再来重新注册
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7）注册成功之后，我们还要查看一下警告信息，一定要在部署hadoop组件之前把所有的警告信息都消除掉。
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由此，可见，需要如下来做。
8）比如时钟同步问题，我们可以通过如下方式解决
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[hadoop@ambari02 ~]$ sudo service ntpd status
ntpd is stopped
[hadoop@ambari02 ~]$ sudo service ntpd start
Starting ntpd: [ OK ]
[hadoop@ambari02 ~]$
9）下面这个问题的解决方法 The following hosts have Transparent Huge Pages (THP) enabled。THP should be disabled to avoid potential Hadoop performance issues.
关闭Transparent HugePages的办法： 在linux的root用户下下执行
echo never > /sys/kernel/mm/redhat_transparent_hugepage/defrag
echo never > /sys/kernel/mm/redhat_transparent_hugepage/enabled
echo never > /sys/kernel/mm/transparent_hugepage/enabled
echo never > /sys/kernel/mm/transparent_hugepage/defrag
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[hadoop@ambari02 ~]$ su root
Password:
[root@ambari02 hadoop]# echo never > /sys/kernel/mm/redhat_transparent_hugepage/defrag
[root@ambari02 hadoop]# echo never > /sys/kernel/mm/redhat_transparent_hugepage/enabled
[root@ambari02 hadoop]# echo never > /sys/kernel/mm/transparent_hugepage/enabled
[root@ambari02 hadoop]# echo never > /sys/kernel/mm/transparent_hugepage/defrag
[root@ambari02 hadoop]#
10）然后，重新检测，保证没有警告之后，我们点击next
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（2）部署HDFS
1）选择我们要安装的组件名称，然后点击next
http://192.168.80.144:8080/#/installer/step4
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我这里为了演示给大家后续的如何去新增一个进来。就只选择 HDFS + Zookeeper + Ambari Metrics。
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2）如果没有其他疑问，就一直点击next，ambari就会进入自动的安装部署过程。
http://192.168.80.144:8080/#/installer/step6
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带着看看信息
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当然，如果牵扯到高级优化等，或者一些其他自定义的，以后自己在搭建好之后，是可以返回来改的！
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等待一段时间。
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3）中间可能会出现一些问题，我们只需要针对性的解决就行，比如下面的问题
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这里是，自动就会检测出问题出来。我们直接Next，后面来手动处理它！。即到ambari02机器上去。
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Traceback (most recent call last):
File "/var/lib/ambari-agent/cache/common-services/AMBARI_METRICS/0.1.0/package/scripts/service_check.py", line 165, in <module>
AMSServiceCheck().execute()
File "/usr/lib/python2.6/site-packages/resource_management/libraries/script/script.py", line 219, in execute
method(env)
File "/usr/lib/python2.6/site-packages/ambari_commons/os_family_impl.py", line 89, in thunk
return fn(*args, **kwargs)
File "/var/lib/ambari-agent/cache/common-services/AMBARI_METRICS/0.1.0/package/scripts/service_check.py", line 160, in service_check
raise Fail("Values %s and %s were not found in the response." % (random_value1, current_time))
resource_management.core.exceptions.Fail: Values 0.32072445008 and 1490951249000 were not found in the response.
其实，这一步每个人安装时，出现的错误不一样。具体是报什么错误，去百度就好。
请移步
安装ambari的时候遇到的ambari和hadoop问题集
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OK，到此为止，我们刚才安装的所有组件就都能够成功启动了.
（3）部署Mapreduce和YARN
1）接下来我们就来演示一下如何添加新的服务
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2）然后我们选择需要添加的服务，然后按照提示点击next即可，ambari会进入自动安装并启动
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Python script has been killed due to timeout after waiting 300 secs
具体，请移步
Python script has been killed due totimeoutafter waiting 1800 secs
vim /etc/ambari-server/conf/ambari.properties（此错误为ambari-server ssh连接ambari-agent安装超时）
agent.package.install.task.timeout=1800更改为9600（时间可根据网络情况继续调整）
说白了，就是，跟大家的网速有关。
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或者
这里装着装着就失败了，显示Python script has been killed due to timeout after waiting 1800 secs
解决办法：
vim /etc/yum.conf，把installonly_limit的值设成600
后来仍然有超时失败，只能retry了，最后终于成功了！
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3）一段时间之后，我们发现所有的服务就都启动起来了
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Ambari安装之部署 （Metrics Collector和 Metrics Monitor） Install Pending ...问题
然后，成功解决了，如下
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（4）运行MapReduce程序
实际上在mapreduce检测的过程中，系统已经跑过一个mapreduce进行测试了
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OK，到此为止，我们的单节点集群就部署成功了。
本文转自大数据躺过的坑博客园博客，原文链接：http://www.cnblogs.com/zlslch/p/6629249.html，如需转载请自行联系原作者
