Linux项目之zabbix监控脑裂
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2022-06-27 20:53:28
环境需求主机IP地址所需服务zabbix server端192.168.159.135lamp、zabbix主keepalived端192.168.159.137keepalived备keepalived端192.168.159.144keepalived、zabbix1. 配置配置server端的lamp和zabbix，我这里就不过多阐述了，有疑问可以参考Liunx服务管理之lamp 和Linux监控服务之zabbix配置主备keepaliv...
文章目录
环境需求
| 主机 | IP地址 | 所需服务 |
|---|---|---|
| zabbix server端 | 192.168.159.135 | lamp、zabbix-server、zabbix-agentd |
| 主keepalived端 | 192.168.159.137 | keepalived |
| 备keepalived端 | 192.168.159.144 | keepalived、zabbix-agentd |
1. 配置
配置server端的lamp和zabbix，我这里就不过多阐述了，有疑问可以参考Liunx服务管理之lamp 和Linux监控服务之zabbix
配置主备keepalived的步骤，我上篇博客Linux服务之keepalived高可用里就有写到，这里也不做详细讲解了
2. 查看主备服务器上的vip状态
配置监控前，主keepalived端
//VIP还是在主这里
[root@master ~]# ss -anlt
State Recv-Q Send-Q Local Address:Port Peer Address:Port
LISTEN 0 128 *:22 *:*
LISTEN 0 100 127.0.0.1:25 *:*
LISTEN 0 128 :::80 :::*
LISTEN 0 128 :::22 :::*
LISTEN 0 100 ::1:25 :::*
[root@master ~]# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: eno16777736: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
link/ether 00:0c:29:b2:1a:0e brd ff:ff:ff:ff:ff:ff
inet 192.168.159.137/24 brd 192.168.159.255 scope global dynamic eno16777736
valid_lft 1647sec preferred_lft 1647sec
inet 192.168.159.250/32 scope global eno16777736
valid_lft forever preferred_lft forever
inet6 fe80::20c:29ff:feb2:1a0e/64 scope link
valid_lft forever preferred_lft forever 配置监控前，备keepalived端
//目前，VIP不在备上面
[root@slave ~]# ss -anlt
State Recv-Q Send-Q Local Address:Port Peer Address:Port
LISTEN 0 128 *:22 *:*
LISTEN 0 100 127.0.0.1:25 *:*
LISTEN 0 128 *:10050 *:*
LISTEN 0 128 :::22 :::*
LISTEN 0 100 ::1:25 :::*
[root@slave ~]# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
link/ether 00:50:56:23:3e:ef brd ff:ff:ff:ff:ff:ff
inet 192.168.159.144/24 brd 192.168.159.255 scope global dynamic eth0
valid_lft 1521sec preferred_lft 1521sec
inet6 fe80::250:56ff:fe23:3eef/64 scope link
valid_lft forever preferred_lft forever 3. 在备上安装、配置zabbix
//安装一些常用的工具
[root@slave ~]# yum -y install vim wget gcc gcc-c++ net-snmp-devel libevent-devel
//下载zabbix安装包，进行编译、安装
[root@slave ~]# cd /usr/src/
[root@slave src]# ls
debug kernels zabbix-4.4.7 zabbix-4.4.7.tar.gz
[root@slave src]# cd zabbix-4.4.7
[root@slave zabbix-4.4.7]# ./configure --enable-agent
[root@slave zabbix-4.4.7]# make install
//修改配置文件
[root@slave ~]# cd /usr/local/etc/
[root@slave etc]# ls
zabbix_agentd.conf zabbix_agentd.conf.d
[root@slave etc]# vim zabbix_agentd.conf
..........
Server=192.168.159.135
..........
ServerActive=192.168.159.135
..........
Hostname=Zabbix client
//创建zabbix用户
[root@slave ~]# useradd -r -M -s /sbin/nologin zabbix
[root@slave ~]# id zabbix
uid=996(zabbix) gid=994(zabbix) groups=994(zabbix)
//启动服务
[root@slave ~]# zabbix_agentd
[root@slave ~]# ss -anlt
State Recv-Q Send-Q Local Address:Port Peer Address:Port
LISTEN 0 128 *:22 *:*
LISTEN 0 100 127.0.0.1:25 *:*
LISTEN 0 128 *:10050 *:*
LISTEN 0 128 :::22 :::*
LISTEN 0 100 ::1:25 :::*
//写入监控脑裂的脚本
[root@slave ~]# cd /scripts/
[root@slave scripts]# ls
notify.sh
[root@slave scripts]# vim check_keepalived.sh
[root@slave scripts]# cat check_keepalived.sh
#!/bin/bash
if [ `ip a show eth0 |grep 192.168.159.250|wc -l` -ne 0 ]
then
echo "1"
else
echo "0"
fi
[root@slave scripts]# chmod +x check_keepalived.sh
[root@slave scripts]# ll
total 8
-rwxr-xr-x 1 root root 110 Jul 31 18:01 check_keepalived.sh
-rwxr-xr-x 1 root root 451 Jul 31 17:32 notify.sh
[root@slave scripts]# ./check_keepalived.sh
0
//把脚本写入配置文件
[root@slave ~]# vim /usr/local/etc/zabbix_agentd.conf
.............
UnsafeUserParameters=1
UserParameter=check_process[*],/bin/bash /scripts/check_keepalived.sh $1
//重启服务
[root@slave ~]# pkill zabbix
[root@slave ~]# zabbix_agentd 4. 在server端，手动测试脚本有没有问题
[root@Server ~]# zabbix_get -s 192.168.159.144 -k check_process
0 //能看到0就是没错的！！ 5. 在web界面配置监控项（zabbix server端）
5.1 创建主机
5.2 添加监控项
5.3 添加触发器
5.4 添加媒介
5.5 添加动作
5.6 进入Latest data查看
6. 触发监控
修改备上的配置文件，让备与主的virtual_router_id不一样，就是争抢VIP，导致脑裂
[root@slave ~]# vim /etc/keepalived/keepalived.conf
! Configuration File for keepalived
...............
virtual_router_id 52
...............
//重启服务
[root@slave ~]# systemctl restart keepalived
[root@slave ~]# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
link/ether 00:50:56:23:3e:ef brd ff:ff:ff:ff:ff:ff
inet 192.168.159.144/24 brd 192.168.159.255 scope global dynamic eth0
valid_lft 1681sec preferred_lft 1681sec
inet 192.168.159.250/32 scope global eth0
valid_lft forever preferred_lft forever
inet6 fe80::250:56ff:fe23:3eef/64 scope link
valid_lft forever preferred_lft forever
查看有没有监控到
本文地址：https://blog.csdn.net/DragonYear/article/details/107835201