CenOS7下Ambari版本更新

蔚落 2022-05-15 01:41 673阅读 0赞

## 一 、准备 ##

### 1、备份ambari server数据库 ###

进入postgres，

pg\_dump ambari>ambari.sql

pg\_dump ambarirca>ambarirca.sql

备份文件在yun5:/var/ambariBack下

备份好ambari.properties配置文件(/etc/ambari-server/conf/ambari.properties)

*  ### 2、搭建本地仓库 ###
 *  下载ambari-2.5.0.3-centos7.tar.gz

[http://public-repo-1.hortonworks.com/ambari/centos7/2.x/updates/2.5.0.3/ambari-2.5.0.3-centos7.tar.gz][http_public-repo-1.hortonworks.com_ambari_centos7_2.x_updates_2.5.0.3_ambari-2.5.0.3-centos7.tar.gz]

*  下载HDP-2.6.0.3-centos7-rpm.tar.gz

[http://public-repo-1.hortonworks.com/HDP/centos7/2.x/updates/2.6.0.3/HDP-2.6.0.3-centos7-rpm.tar.gz][http_public-repo-1.hortonworks.com_HDP_centos7_2.x_updates_2.6.0.3_HDP-2.6.0.3-centos7-rpm.tar.gz]

*  下载/HDP-UTILS-1.1.0.21-centos7.tar.gz

[http://public-repo-1.hortonworks.com/HDP-UTILS-1.1.0.21/repos/centos7/HDP-UTILS-1.1.0.21-centos7.tar.gz][http_public-repo-1.hortonworks.com_HDP-UTILS-1.1.0.21_repos_centos7_HDP-UTILS-1.1.0.21-centos7.tar.gz]

*  下载ambari.repo

将Baseurl修改为搭建的仓库地址

官方升级版本说明  
http://docs.hortonworks.com/HDPDocuments/Ambari-2.4.0.1/bk\_ambari-installation/content/determine\_stack\_compatibility.html  
  
官方升级步骤  
http://docs.hortonworks.com/HDPDocuments/Ambari-2.4.0.1/bk\_ambari-upgrade/content/preparing\_to\_upgrade\_ambari.html  
  
官方HDP问题搜索  
https://community.hortonworks.com/answers/index.html  
  
Upgrade Ambari

### 二、升级前准备 ###

Preparing to Upgrade

*  确认版本

Be sure to review the Release Notes for this Ambari release for Known Issues and Behavioral Changes.

*  拥有root权限

You must have root, administrative, or root-equivalent authorization on the Ambari server host and all servers in the cluster.

*  备份ambari数据库

You must backup the Ambari Server database.

*  备份好ambari.properties配置文件

You must make a safe copy of the Ambari Server configuration file found at /etc/ambari-server/conf/ambari.properties.

## 三、停止服务、下载新的ambari.repo ##

*  关闭Ambari Metrics

If you are running Ambari Metrics service in your cluster, stop the service. From Ambari Web, browse to Services > Ambari Metrics and select Stop from the Service Actions menu.

*  停止ambari-server

Stop the Ambari Server. On the host running Ambari Server:  
    ambari-server stop

*  停止ambari-agent

Stop all Ambari Agents. On each host in your cluster running an Ambari Agent:  
    ambari-agent stop

*  获取新的ambari.repo

Fetch the new Ambari repo and replace the old repository file with the new repository file on all hosts in your cluster.  
  
wget -nv http://public-repo-1.hortonworks.com/ambari/centos6/2.x/updates/2.4.0.1/ambari.repo -O /etc/yum.repos.d/ambari.repo

## 四、升级操作 ##

*  Upgrade Ambari Server. On the host running Ambari Server:

yum clean all  
    yum info ambari-server

*  在ambari节点更新ambari-server

In the info output, visually validate that there is an available version containing "2.4"  
    yum upgrade ambari-server  
  
显示如下成功：  
Updated:  
   ambari-server.x86\_64 0:2.4.0.1-1        
Complete!

*  在所有节点更新ambari-agent

Upgrade all Ambari Agents. On each host in your cluster running an Ambari Agent:  
    yum upgrade ambari-agent  
  
显示如下成功：  
Updated:  
  ambari-agent.x86\_64 0:2.4.0.1-1                                                           
  
Complete!

*  查看ambari-agent

After the upgrade process completes, check each host to make sure the new files have been installed:  
rpm -qa | grep ambari-agent

*  升级ambari-server

Upgrade Ambari Server database schema. On the host running Ambari Server:  
ambari-server upgrade

\[root@testserver2 yum.repos.d\]\# ambari-server upgrade

Using python  /usr/bin/python  
Upgrading ambari-server  
Updating properties in ambari.properties ...  
WARNING: Can not find ambari.properties.rpmsave file from previous version, skipping import of settings  
INFO: Can not find ambari-env.sh.rpmsave file from previous version, skipping restore of environment settings. ambari-env.sh may not include any user customization.  
Fixing database objects owner  
Ambari Server configured for Embedded Postgres. Confirm you have made a backup of the Ambari Server database \[y/n\] (y)?  
Upgrading database schema  
Adjusting ambari-server permissions and ownership...  
Ambari Server 'upgrade' completed successfully.

*  启动ambari-server

Start the Ambari Server. On the host running Ambari Server:  
ambari-server start  
  
\[root@testserver2 yum.repos.d\]\# ambari-server start  
Using python  /usr/bin/python  
Starting ambari-server  
Ambari Server running with administrator privileges.  
Organizing resource files at /var/lib/ambari-server/resources...  
Ambari database consistency check started...  
No errors were found.  
Ambari database consistency check finished  
Server PID at: /var/run/ambari-server/ambari-server.pid  
Server out at: /var/log/ambari-server/ambari-server.out  
Server log at: /var/log/ambari-server/ambari-server.log  
Waiting for server start....................  
Ambari Server 'start' completed successfully.

*  所有节点启动ambari-agent

Start all Ambari Agents. On each host in your cluster running an Ambari Agent:  
ambari-agent start

*  登录ambari管理界面，查看版本，升级成功。

打开管理界面后出现图中内容，使用’ctrl+shift+R’刷新下就好了。

![/images/20220515/3353a60b124b4c54b8be44223cef6496.png][https_img-blog.csdn.net_20170301160014525]

*  ### 五、增加新版本HDP ###
 *  浏览Ambari Web > Admin > Stack and Versions.

点击Versions标签，你将看到已经安装的HDP版本  
  
如果看不到已经安装(Current)的版本, 说明客户端没有更新完。  
  
Admin > Manager Ambari > 左侧Versions  
点击右上角的按钮Register Version，添加新的hdp版本。

*  点击Install Packages就能够将hadoop升级到该HDP版本了。

![/images/20220515/0e2e4f57806c41eaa51ab36d77178b00.png][https_img-blog.csdn.net_20160907171621469]

*  安装后点击upgrade，有两种升级模式，一种是保持服务运行升级，另一种是停止服务升级，后者升级更快些

![/images/20220515/bfdf730165a6444687c599438313d732.png][https_img-blog.csdn.net_20160908104015035]

*  点击Checks查看警告信息，需要检查TEZ服务，进入TEZ服务，选择“”run service check“”

![/images/20220515/258064442c2845679a70c921074423de.png][https_img-blog.csdn.net_20160908104021175]

*  提示是否升级

![/images/20220515/7da9ff52b19d4757acac66afe01034bb.png][https_img-blog.csdn.net_20160908105500292]

*  选择i have performed the clients will retry on their above. 之后proceed

![/images/20220515/2debbb8632c84685afc57a65c404cbf8.png][https_img-blog.csdn.net_20160908105512120]

*  开始升级，我选择的是停止服务升级，过程中会自动stop服务，有时候需要retry

![/images/20220515/5b4d9181b9a740f3941e84050161e67b.png][https_img-blog.csdn.net_20160908105525292]

![/images/20220515/2f557341ea9c4fc788d3ae140433a682.png][https_img-blog.csdn.net_20160908110609058]

*  最后确认是否完成升级，升级后无法回退到旧版本。

![/images/20220515/03dd97bf05044e2f9e080eea899f6e2f.png][https_img-blog.csdn.net_20160908112037266]

*  HDP2.5已经为当前版本

![/images/20220515/59299b302e7c40b9a696efa4d7699a23.png][https_img-blog.csdn.net_20160908112218334]

*  在添加新服务的时候已经是新版本组件了

![/images/20220515/0be8abc7164641b7b2bb4ccbd46e9dd7.png][https_img-blog.csdn.net_20160908112312709]

*  看了下hdfs中的数据还在

![/images/20220515/a28d6049ec3e421d87d99dc8940167a2.png][https_img-blog.csdn.net_20160908113409698]

### **总结：** ###

对于生产环境[**Hadoop**][Hadoop]集群升级，绝对是个重量级工作，一定要有敬畏之心，以上升级步骤虽然看着不复杂，也很顺利的完成，我是在[**测试**][Link 1]环境上进行的，没有一点心理负担，

如果是生产环境，不仅需要停止服务，如果在过程中出现问题，后果肯定无法想象，新版本组件也需要在升级前进行测试，业务是否可以运行正常，需要大量的测试实践工作，建议如果真要升级hadoop集群，还是考虑异地备份重要数据，避免数据丢失，比起数据丢失的风险，多买几台服务器进行数据备份，不算什么的，总之不到万不得已，轻易不要升级集群。

[http_public-repo-1.hortonworks.com_ambari_centos7_2.x_updates_2.5.0.3_ambari-2.5.0.3-centos7.tar.gz]: http://public-repo-1.hortonworks.com/ambari/centos7/2.x/updates/2.5.0.3/ambari-2.5.0.3-centos7.tar.gz
[http_public-repo-1.hortonworks.com_HDP_centos7_2.x_updates_2.6.0.3_HDP-2.6.0.3-centos7-rpm.tar.gz]: http://public-repo-1.hortonworks.com/HDP/centos7/2.x/updates/2.6.0.3/HDP-2.6.0.3-centos7-rpm.tar.gz
[http_public-repo-1.hortonworks.com_HDP-UTILS-1.1.0.21_repos_centos7_HDP-UTILS-1.1.0.21-centos7.tar.gz]: http://public-repo-1.hortonworks.com/HDP-UTILS-1.1.0.21/repos/centos7/HDP-UTILS-1.1.0.21-centos7.tar.gz
[https_img-blog.csdn.net_20170301160014525]: /images/20220515/3353a60b124b4c54b8be44223cef6496.png
[https_img-blog.csdn.net_20160907171621469]: /images/20220515/0e2e4f57806c41eaa51ab36d77178b00.png
[https_img-blog.csdn.net_20160908104015035]: /images/20220515/bfdf730165a6444687c599438313d732.png
[https_img-blog.csdn.net_20160908104021175]: /images/20220515/258064442c2845679a70c921074423de.png
[https_img-blog.csdn.net_20160908105500292]: /images/20220515/7da9ff52b19d4757acac66afe01034bb.png
[https_img-blog.csdn.net_20160908105512120]: /images/20220515/2debbb8632c84685afc57a65c404cbf8.png
[https_img-blog.csdn.net_20160908105525292]: /images/20220515/5b4d9181b9a740f3941e84050161e67b.png
[https_img-blog.csdn.net_20160908110609058]: /images/20220515/2f557341ea9c4fc788d3ae140433a682.png
[https_img-blog.csdn.net_20160908112037266]: /images/20220515/03dd97bf05044e2f9e080eea899f6e2f.png
[https_img-blog.csdn.net_20160908112218334]: /images/20220515/59299b302e7c40b9a696efa4d7699a23.png
[https_img-blog.csdn.net_20160908112312709]: /images/20220515/0be8abc7164641b7b2bb4ccbd46e9dd7.png
[https_img-blog.csdn.net_20160908113409698]: /images/20220515/a28d6049ec3e421d87d99dc8940167a2.png
[Hadoop]: http://lib.csdn.net/base/hadoop
[Link 1]: http://lib.csdn.net/base/softwaretest