Hadoop生态圈之集群监控技术Zabbix

向右看齐 2023-01-07 07:09 556阅读 0赞

### 目录 ###

*   *  第1章 Zabbix入门
     *   *  1.1 Zabbix概述
         *  1.2 Zabbix 基础架构
     *  第2章 Zabbix部署
     *   *  2.1 集群规划
         *  2.2 准备工作
         *  2.3 配置Zabbix yum源（3台节点）
         *  2.4 安装Zabbix
         *  2.5 配置Zabbix
     *  第4章 Zabbix使用
     *   *  4.1 Zabbix术语
         *  4.2 Zabbix实战

## 第1章 Zabbix入门 ##

### 1.1 Zabbix概述 ###

> Zabbix是一款能够监控各种网络参数以及服务器健康性和完整性的软件。Zabbix使用灵活的通知机制，允许用户为几乎任何事件配置基于邮件的告警。这样可以快速反馈服务器的问题。基于已存储的数据，Zabbix提供了出色的报告和数据可视化功能。

### 1.2 Zabbix 基础架构 ###

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mjc5NjQwMw_size_16_color_FFFFFF_t_70]

## 第2章 Zabbix部署 ##

### 2.1 集群规划 ###

![在这里插入图片描述][20210115210144175.png]

### 2.2 准备工作 ###

**2.2.1 关闭防火墙（3台节点，已关闭）**

sudo service iptables stop
    sudo chkconfig iptables off

**2.2.2 关闭SELinux（hadoop102）**

1.  修改配置文件/etc/selinux/config

sudo vim /etc/selinux/config
    
    # This file controls the state of SELinux on the system.
    # SELINUX= can take one of these three values:
    # enforcing - SELinux security policy is enforced.
    # permissive - SELinux prints warnings instead of enforcing.
    # disabled - No SELinux policy is loaded.
    SELINUX=disabled
    # SELINUXTYPE= can take one of these two values:
    # targeted - Targeted processes are protected,
    # mls - Multi Level Security protection.
    SELINUXTYPE=targeted

**2）重启服务器**

sudo reboot

### 2.3 配置Zabbix yum源（3台节点） ###

**2.3.1 安装yum源**

执行以下命令安装yum源

sudo rpm -ivh https://mirrors.aliyun.com/zabbix/zabbix/4.4/rhel/7/x86_64/zabbix-release-4.4-1.el7.noarch.rpm

**2.3.2 修改为阿里云镜像**

1）查看原始zabbix.repo文件

sudo cat /etc/yum.repos.d/zabbix.repo

内容如下

[zabbix]
    name=Zabbix Official Repository - $basearch
    baseurl=http://repo.zabbix.com/zabbix/4.4/rhel/7/$basearch/
    enabled=1
    gpgcheck=1
    gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-ZABBIX-A14FE591
    
    [zabbix-debuginfo]
    name=Zabbix Official Repository debuginfo - $basearch
    baseurl=http://repo.zabbix.com/zabbix/4.4/rhel/7/$basearch/debuginfo/
    enabled=0
    gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-ZABBIX-A14FE591
    gpgcheck=1
    
    [zabbix-non-supported]
    name=Zabbix Official Repository non-supported - $basearch
    baseurl=http://repo.zabbix.com/non-supported/rhel/7/$basearch/
    enabled=1
    gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-ZABBIX
    gpgcheck=1

2）执行以下命令完成全局替换

sudo sed -i 's/http:\/\/repo.zabbix.com/https:\/\/mirrors.aliyun.com\/zabbix/g' /etc/yum.repos.d/zabbix.repo

3）查看修改之后的zabbix.repo文件

sudo cat /etc/yum.repos.d/zabbix.repo

内容如下

[zabbix]
    name=Zabbix Official Repository - $basearch
    baseurl=https://mirrors.aliyun.com/zabbix/zabbix/4.4/rhel/7/$basearch/
    enabled=1
    gpgcheck=1
    gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-ZABBIX-A14FE591
    
    [zabbix-debuginfo]
    name=Zabbix Official Repository debuginfo - $basearch
    baseurl=https://mirrors.aliyun.com/zabbix/zabbix/4.4/rhel/7/$basearch/debuginfo/
    enabled=0
    gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-ZABBIX-A14FE591
    gpgcheck=1
    
    [zabbix-non-supported]
    name=Zabbix Official Repository non-supported - $basearch
    baseurl=https://mirrors.aliyun.com/zabbix/non-supported/rhel/7/$basearch/
    enabled=1
    gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-ZABBIX
    gpgcheck=1

### 2.4 安装Zabbix ###

在三台节点分别执行以下安装命令

[hadoop@hadoop102 ~]$ sudo yum install zabbix-server-mysql zabbix-web-mysql zabbix-agent
    
    [hadoop@hadoop103 ~]$ sudo yum install zabbix-agent
    
    [hadoop@hadoop104 ~]$ sudo yum install zabbix-agent

### 2.5 配置Zabbix ###

**2.5.1 创建zabbix数据库**

[hadoop@hadoop102 ~]$ mysql -uroot -p123456 -e"create database zabbix character set utf8 collate utf8_bin"

**2.5.2 导入Zabbix建表语句**

[hadoop@hadoop102 ~]$ zcat /usr/share/doc/zabbix-server-mysql-4.4.10/create.sql.gz | mysql -uroot -p123456 zabbix

**2.5.3 配置Zabbix\_Server（hadoop102）**

修改zabbix-server配置文件

sudo vim /etc/zabbix/zabbix_server.conf
    
    DBHost=hadoop102
    DBName=zabbix
    DBUser=root
    DBPassword=123456

**2.5.4 配置Zabbix\_Agent（三台节点）**  
修改zabbix-agent配置文件

sudo vim /etc/zabbix/zabbix_agentd.conf
    
    Server=hadoop102
    #ServerActive=127.0.0.1
    #Hostname=Zabbix server

**2.5.5 配置Zabbix\_Web时区**

修改/etc/httpd/conf.d/zabbix.conf文件

sudo vim /etc/httpd/conf.d/zabbix.conf
    
    
    #
    # Zabbix monitoring system php web frontend
    #
    
    Alias /zabbix /usr/share/zabbix
    
    <Directory "/usr/share/zabbix">
        Options FollowSymLinks
        AllowOverride None
        Require all granted
    
        <IfModule mod_php5.c>
            php_value max_execution_time 300
            php_value memory_limit 128M
            php_value post_max_size 16M
            php_value upload_max_filesize 2M
            php_value max_input_time 300
            php_value max_input_vars 10000
            php_value always_populate_raw_post_data -1
            php_value date.timezone Asia/Shanghai
        </IfModule>
    </Directory>

**2.3.6 启动Zabbix**

[hadoop@hadoop102 ~]$ sudo systemctl start zabbix-server zabbix-agent httpd
    [hadoop@hadoop102 ~]$ sudo systemctl enable zabbix-server zabbix-agent httpd
    
    [hadoop@hadoop103 ~]$ sudo systemctl start zabbix-agent
    [hadoop@hadoop103 ~]$ sudo systemctl enable zabbix-agent
    
    [hadoop@hadoop104 ~]$ sudo systemctl start zabbix-agent
    [hadoop@hadoop104 ~]$ sudo systemctl enable zabbix-agent

**2.3.7 配置Zabbix\_Web数据库**

1）浏览器访问http://hadoop102/zabbix  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mjc5NjQwMw_size_16_color_FFFFFF_t_70 1]

2）检查配置  
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3）配置数据库  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mjc5NjQwMw_size_16_color_FFFFFF_t_70 3]

4）配置zabbix-server  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mjc5NjQwMw_size_16_color_FFFFFF_t_70 4]

## 第4章 Zabbix使用 ##

### 4.1 Zabbix术语 ###

**3.1.1 Host（主机）**

> 一台你想监控的网络设备，用IP或域名表示。

**3.2.1 Item（监控项）**

> 你想要接收的主机的特定数据，一个度量数据。

**3.2.2 Trigger（触发器）**

> 一个被用于定义问题阈值和“评估”监控项接收到的数据的逻辑表达式。

**3.2.3 Action（动作）**

> 一个对事件做出反应的预定义的操作，比如邮件通知。

### 4.2 Zabbix实战 ###

**4.2.0 登录**

Admin/zabbix

**4.2.1 创建Host**

1）点击Configuration/Hosts/Create host  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mjc5NjQwMw_size_16_color_FFFFFF_t_70 5]

2）配置Host  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mjc5NjQwMw_size_16_color_FFFFFF_t_70 6]

3）查看新增Host  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mjc5NjQwMw_size_16_color_FFFFFF_t_70 7]

**4.2.2 创建Item**

1）点击Items  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mjc5NjQwMw_size_16_color_FFFFFF_t_70 8]

2）点击Create item  
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3）配置Item  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mjc5NjQwMw_size_16_color_FFFFFF_t_70 10]

4）查看创建的Item  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mjc5NjQwMw_size_16_color_FFFFFF_t_70 11]

5）查看Item最新数据  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mjc5NjQwMw_size_16_color_FFFFFF_t_70 12]

**4.2.3 创建Trigger**

1）点击Conguration/Hosts/Triggers  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mjc5NjQwMw_size_16_color_FFFFFF_t_70 13]

2）点击Create Trigger  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mjc5NjQwMw_size_16_color_FFFFFF_t_70 14]

3）编辑Trigger  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mjc5NjQwMw_size_16_color_FFFFFF_t_70 15]

4）测试Trigger  
关闭集群中的HDFS，会有如下效果  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mjc5NjQwMw_size_16_color_FFFFFF_t_70 16]

**4.2.4 创建Media type**

1）点击Administration/Media types/Email  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mjc5NjQwMw_size_16_color_FFFFFF_t_70 17]

2）编辑Email  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mjc5NjQwMw_size_16_color_FFFFFF_t_70 18]

3）测试Email  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mjc5NjQwMw_size_16_color_FFFFFF_t_70 19]

4）Email绑定收件人  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mjc5NjQwMw_size_16_color_FFFFFF_t_70 20]

**4.2.4 创建Action**

1）点击Configuration/Actions/Create action  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mjc5NjQwMw_size_16_color_FFFFFF_t_70 21]

2）编辑Action  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mjc5NjQwMw_size_16_color_FFFFFF_t_70 22]  
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3）测试  
重新启动HDFS，再关闭HDFS时，即可收到邮件通知

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