大数据之CDH数仓(22) | 集群管理之节点的添加和删除

忘是亡心i 2022-12-12 04:58 549阅读 0赞

### 目录 ###

*  准备新节点
 *  添加节点向导
 *  删除节点

# 准备新节点 #

1）准备一台新的阿里云ECS服务器，并确保其和之前的集群位于同一地域，以及同一个安全组，主机名为hadoop105。  
（1）相同地域  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ2NTQ4ODU1_size_16_color_FFFFFF_t_70_pic_center]  
（2）相同安全组  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ2NTQ4ODU1_size_16_color_FFFFFF_t_70_pic_center 1]  
（3）主机名  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ2NTQ4ODU1_size_16_color_FFFFFF_t_70_pic_center 2]

2）安装jdk，如果集群启用了Kerberos，还需安装Kerberos客户端，并做相应的配置。  
（1）安装jdk  
将jdk解压到/usr/java/目录下，并编辑/etc/profile，声明JAVA\_HOME  
（2）安装Kerberos客户端，并作相应配置  
安装Kerberos客户端

yum install -y krb5-workstation krb5-libs

修改/etc/krb5.conf文件

[root@hadoop102 ~]# vim /etc/krb5.conf
    includedir /etc/krb5.conf.d/
    
    [logging]
     default = FILE:/var/log/krb5libs.log
     kdc = FILE:/var/log/krb5kdc.log
     admin_server = FILE:/var/log/kadmind.log
    
    [libdefaults]
     dns_lookup_realm = false
     ticket_lifetime = 24h
     renew_lifetime = 7d
     forwardable = true
     rdns = false
     pkinit_anchors = /etc/pki/tls/certs/ca-bundle.crt
     default_realm = HADOOP.COM
     #default_ccache_name = KEYRING:persistent:%{uid}
     udp_preference_limit = 1
    [realms]
     HADOOP.COM = { 
      kdc = hadoop102
      admin_server = hadoop102
    }
    
    [domain_realm]
    # .example.com = EXAMPLE.COM
    # example.com = EXAMPLE.COM

3）安装cloudera-manager-agent并启动  
（1）开启本地yum源

[root@hadoop102 ~]# cd /var/www/html/
    [root@hadoop102 html]# python -m SimpleHTTPServer 8900

（2）在新节点配置yum源

[root@hadoop105 ~]# vim /etc/yum.repos.d/cloudera-manager.repo

文件内容如下

[cloudera-manager]
    name=cloudera-manager
    baseurl=http://hadoop102:8900/cloudera-repos/cm6/6.2.1/redhat7/yum/
    enabled=1
    gpgcheck=0

（3）安装

[root@hadoop105 ~]# yum -y install cloudera-manager-agent cloudera-manager-daemons

（4）修改/etc/cloudera-scm-agent/config.ini

[root@hadoop105 ~]# vim /etc/cloudera-scm-agent/config.ini

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ2NTQ4ODU1_size_16_color_FFFFFF_t_70_pic_center 3]  
（5）启动cloudera-scm-agent服务

systemctl start cloudera-scm-agent

# 添加节点向导 #

1）点击向集群中添加新主机  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ2NTQ4ODU1_size_16_color_FFFFFF_t_70_pic_center 4]  
2）选择新节点要被加入的集群  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ2NTQ4ODU1_size_16_color_FFFFFF_t_70_pic_center 5]  
3）选择机器hadoop105  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ2NTQ4ODU1_size_16_color_FFFFFF_t_70_pic_center 6]  
4）等待激活  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ2NTQ4ODU1_size_16_color_FFFFFF_t_70_pic_center 7]  
5）检查主机配置正确性  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ2NTQ4ODU1_size_16_color_FFFFFF_t_70_pic_center 8]  
6）创建主机模板  
（1）点击创建  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ2NTQ4ODU1_size_16_color_FFFFFF_t_70_pic_center 9]

（2）选择需要安装的组件

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ2NTQ4ODU1_size_16_color_FFFFFF_t_70_pic_center 10]  
（3）选择刚刚创建的模板，点击继续  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ2NTQ4ODU1_size_16_color_FFFFFF_t_70_pic_center 11]  
（4）等待部署  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ2NTQ4ODU1_size_16_color_FFFFFF_t_70_pic_center 12]  
（5）完成

# 删除节点 #

1）选中要移除的主机，点击“已选定的操作”  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ2NTQ4ODU1_size_16_color_FFFFFF_t_70_pic_center 13]  
2）点击“Begin Maintenance”  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ2NTQ4ODU1_size_16_color_FFFFFF_t_70_pic_center 14]  
3）选择退役服务  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ2NTQ4ODU1_size_16_color_FFFFFF_t_70_pic_center 15]  
4）等待接触授权  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ2NTQ4ODU1_size_16_color_FFFFFF_t_70_pic_center 16]  
5）在移除的节点上停止cloudera-scm-agent服务

[root@hadoop105 ~]# systemctl stop cloudera-scm-agent

6）移除节点  
（1）选中要移除的节点  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ2NTQ4ODU1_size_16_color_FFFFFF_t_70_pic_center 17]  
（2）点击已选定的操作，选择Remove From Cloudera Manager  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ2NTQ4ODU1_size_16_color_FFFFFF_t_70_pic_center 18]  
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7）重启相关服务

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