zabbix监控linux内存

柔情只为你懂 2022-04-24 05:24 252阅读 0赞

# [zabbix监控linux内存][zabbix_linux] #

# 通过free -m查看当前内存 #

![free.png][]

可用内存：Available memory=free+buffers+cached，即31068=759+66+30243

已用内存：Used memory=used-buffers-cached，即1030=31339-66-30243

我这里不使用zabbix自带的监控模板，手动设置监控项。

1、开启对应防火墙端口

<table> 
 <tbody> 
  <tr> 
   <td> 
    <div> 
     <div>
       1 
     </div> 
    </div> </td> 
   <td> 
    <div> 
     <div> 
      <span>vim<span> <span>/<span>etc<span>/<span>sysconfig<span>/<span>iptables</span></span></span></span></span></span></span></span> 
     </div> 
    </div> </td> 
  </tr> 
 </tbody> 
</table>

添加

<table> 
 <tbody> 
  <tr> 
   <td> 
    <div> 
     <div>
       1 
     </div> 
     <div>
       2 
     </div> 
    </div> </td> 
   <td> 
    <div> 
     <div> 
      <span>-<span>A<span> <span>INPUT<span> <span>-<span>p<span> <span>tcp<span> <span>--<span>dport<span> <span>10050<span> <span>-<span>j<span> <span>ACCEPT</span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span> 
     </div> 
     <div> 
      <span>-<span>A<span> <span>INPUT<span> <span>-<span>p<span> <span>udp<span> <span>--<span>dport<span> <span>10050<span> <span>-<span>j<span> <span>ACCEPT</span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span> 
     </div> 
    </div> </td> 
  </tr> 
 </tbody> 
</table>

重启iptables使其生效

<table> 
 <tbody> 
  <tr> 
   <td> 
    <div> 
     <div>
       1 
     </div> 
    </div> </td> 
   <td> 
    <div> 
     <div> 
      <span>service <span>iptables <span>restart</span></span></span> 
     </div> 
    </div> </td> 
  </tr> 
 </tbody> 
</table>

2、安装zabbix-agent

<table> 
 <tbody> 
  <tr> 
   <td> 
    <div> 
     <div>
       1 
     </div> 
    </div> </td> 
   <td> 
    <div> 
     <div> 
      <span>rpm<span> <span>-<span>ivh <span>http<span>:<span>//repo.zabbix.com/zabbix/3.2/rhel/6/x86_64/zabbix-release-3.2-1.el6.noarch.rpm</span></span></span></span></span></span></span> 
     </div> 
    </div> </td> 
  </tr> 
 </tbody> 
</table>

<table> 
 <tbody> 
  <tr> 
   <td> 
    <div> 
     <div>
       1 
     </div> 
    </div> </td> 
   <td> 
    <div> 
     <div> 
      <span>yum<span> <span>-<span>y<span> <span>install <span>zabbix<span>-<span>agent</span></span></span></span></span></span></span></span></span> 
     </div> 
    </div> </td> 
  </tr> 
 </tbody> 
</table>

3、修改zabbix-agent配置文件

<table> 
 <tbody> 
  <tr> 
   <td> 
    <div> 
     <div>
       1 
     </div> 
    </div> </td> 
   <td> 
    <div> 
     <div> 
      <span>vim<span> <span>/<span>etc<span>/<span>zabbix<span>/<span>zabbix_agentd<span>.<span>conf</span></span></span></span></span></span></span></span></span></span> 
     </div> 
    </div> </td> 
  </tr> 
 </tbody> 
</table>

<table> 
 <tbody> 
  <tr> 
   <td> 
    <div> 
     <div>
       1 
     </div> 
     <div>
       2 
     </div> 
    </div> </td> 
   <td> 
    <div> 
     <div> 
      <span>Server<span>=服务端<span>IP（如果有多个服务端可以用逗号分隔）</span></span></span> 
     </div> 
     <div> 
      <span>Hostname<span>=主机名（填客户端<span>IP都可以）</span></span></span> 
     </div> 
    </div> </td> 
  </tr> 
 </tbody> 
</table>

4、启动zabbix-agent服务

<table> 
 <tbody> 
  <tr> 
   <td> 
    <div> 
     <div>
       1 
     </div> 
    </div> </td> 
   <td> 
    <div> 
     <div> 
      <span>/<span>etc<span>/<span>init<span>.<span>d<span>/<span>zabbix<span>-<span>agent <span>start</span></span></span></span></span></span></span></span></span></span></span> 
     </div> 
    </div> </td> 
  </tr> 
 </tbody> 
</table>

设置开机自启

<table> 
 <tbody> 
  <tr> 
   <td> 
    <div> 
     <div>
       1 
     </div> 
    </div> </td> 
   <td> 
    <div> 
     <div> 
      <span>chkconfig <span>zabbix<span>-<span>agent <span>on</span></span></span></span></span> 
     </div> 
    </div> </td> 
  </tr> 
 </tbody> 
</table>

5、在配置-主机-创建主机

![zabbix1-1.png][]

主机名称可以写客户端的hostname，我这里直接写的IP地址，设置一个可见的名称，下面填写客户端IP地址，其他全部默认直接添加即可。

![zabbix2-1.png][]

6、手动创建一个应用集，应用集名称为Memory

7、创建监控项

a）先创建一个Total memory

![totalmemory.png][]

b）再创建一个Available memory

![availablememory.png][]

c）最后再创建Used memory

监控内存计算公式，用总内存减去可用内存获得准确的使用内存（注意这里双引号"，是英文的"，网上很多教程都是用的中文双引号，所以添加后会报错误）

(last("vm.memory.size\[total\]")-last("vm.memory.size\[available\]"))

![usedmemory.png][]

8、创建图形

监控项这里我添加了，Total memory和Used memory

![memory1.png][]

9、预览图形

![memory2.png][]

![memory3.png][]

![freem.png][]

posted @ 2018-11-26 11:25 [疯狂的米粒儿][Link 1] 阅读( ...) 评论( ...) [编辑][Link 2] 收藏

[zabbix_linux]: https://www.cnblogs.com/Su-per-man/p/10019344.html
[free.png]: /images/20220219/54e5a338aa3e4672b21b14acae78c3fe.png
[zabbix1-1.png]: /images/20220219/85627cbc5bf34d0cae04422184d48620.png
[zabbix2-1.png]: /images/20220219/945c358b4e824c6aa3dd469606b5bc25.png
[totalmemory.png]: /images/20220219/47370b65db574f1fb6dde3d51ebce44b.png
[availablememory.png]: /images/20220219/081e86620412448c86eadfae66c3de59.png
[usedmemory.png]: /images/20220219/8705cf67741641128d5df7c4c4e46418.png
[memory1.png]: /images/20220219/256498f70e904067bd22b679238d504f.png
[memory2.png]: /images/20220219/dc02ea6e61b54b73aec6dbce33f385d2.png
[memory3.png]: /images/20220219/6ae7143b61374242b8db5a7a3d0b9bb8.png
[freem.png]: /images/20220219/159eac70bcbd4dc493828de0c2050f61.png
[Link 1]: https://www.cnblogs.com/Su-per-man/
[Link 2]: https://i.cnblogs.com/EditPosts.aspx?postid=10019344