监控介绍
为什么要做监控？
可以提前发现潜在的故障隐患，第一时间解决掉。把影响降低。
常见的监控软件：
cacti nagios zaabix（用得最多） open-falcon prometheus grafana 等等
安装zabbix4.0
[root@wangzb01 ~]# rpm -ivh https://repo.zabbix.com/zabbix/4.0/rhel/7/x86_/zabbix-release-4.0-1.el7.noarch.rpm
获取https://repo.zabbix.com/zabbix/4.0/rhel/7/x86_/zabbix-release-4.0-1.el7.noarch.rpm
警告：/var/tmp/rpm-tmp.p8q9Nk: 头V4 RSA/SHA512 Signature, 密钥 ID a14fe591: NOKEY
准备中... ################################# [100%]
正在升级/安装...
1:zabbix-release-4.0-1.el7 ################################# [100%]
[root@wangzb01 ~]# yum list | grep zabbix //查看zabbix相关的包
[root@wangzb01 ~]# yum install -y zabbix-agent zabbix-get zabbix-server-mysql zabbix-web zabbix-web-mysql //安装这几个包
[root@wangzb01 ~]# netstat -ltnp //查看端口，端口不要和nginx，Tomcat冲突
[root@wangzb01 ~]# mysql -uroot -pmysql //登录数据库
MariaDB [(none)]> create database zabbix //创建数据库
MariaDB [(none)]> grant all on zabbix.* to 'zabbix'@'127.0.0.1' identified by 'zabbix'; //创建数据库用户名密码
[root@wangzb01 ~]# vi /etc/zabbix/zabbix_server.conf //编辑配置文件
DBHost=127.0.0.1
DBName=zabbix
DBUser=zabbix
DBPassword=zabbix
[root@wangzb01 ~]# systemctl start zabbix-server //启动服务
[root@wangzb01 ~]# ps aux | grep zabbix //查看服务
root 7830 0.0 0.0 112724 988 pts/0 S+ 22:08 0:00 grep --color=auto zabbix
发现并未启动成功
[root@wangzb01 ~]# vim /var/log/zabbix/zabbix_server.log //查看日志
原因是没有导入zabbix的数据库
[root@wangzb01 ~]# ls /usr/share/doc/zabbix-server-mysql-4.0.5/create.sql.gz //查看create.sql文件
[root@wangzb01 ~]# gzip -d /usr/share/doc/zabbix-server-mysql-4.0.5/create.sql.gz //解压文件
[root@wangzb01 ~]# ls /usr/share/doc/zabbix-server-mysql-4.0.5/create.sql //查看解压后的文件
[root@wangzb01 ~]# mysql -uroot -pmysql zabbix < /usr/share/doc/zabbix-server-mysql-4.0.5/create.sql //将create.sql导入到zabbix库中
[root@wangzb01 ~]# systemctl start zabbix-server //再次启动服务
[root@wangzb01 ~]# ps aux | grep zabbix_server
zabbix 8121 0.0 0.4 257668 4312 ? S 22:15 0:00 /usr/sbin/zabbix_server -c /etc/zabbix/zabbix_server.conf
zabbix 8123 0.0 0.3 257668 3292 ? S 22:15 0:00 /usr/sbin/zabbix_server: configuration syncer [synced configuration in 0.0541 sec, idle 60 sec]
zabbix 8124 0.0 0.2 257668 2552 ? S 22:15 0:00 /usr/sbin/zabbix_server: alerter #1 started
zabbix 8125 0.0 0.2 257668 2552 ? S 22:15 0:00 /usr/sbin/zabbix_server: alerter #2 started
zabbix 8126 0.0 0.2 257668 2552 ? S 22:15 0:00 /usr/sbin/zabbix_server: alerter #3 started
zabbix 8127 0.0 0.2 257668 2552 ? S 22:15 0:00 /usr/sbin/zabbix_server: housekeeper [startup idle for 30 minutes]
zabbix 8128 0.0 0.2 257668 22 ? S 22:15 0:00 /usr/sbin/zabbix_server: timer #1 [updated 0 hosts, suppressed 0 events in 0.002961 sec, idle 59 sec]
zabbix 8129 0.0 0.2 257668 22 ? S 22:15 0:00 /usr/sbin/zabbix_server: http poller #1 [got 0 values in 0.001293 sec, idle 5 sec]
zabbix 8130 0.0 0.5 362136 5288 ? S 22:15 0:00 /usr/sbin/zabbix_server: discoverer #1 [processed 0 rules in 0.001912 sec, idle 60 sec]
zabbix 8131 0.0 0.3 257792 3568 ? S 22:15 0:00 /usr/sbin/zabbix_server: history syncer #1 [processed 0 values, 0 triggers in 0.000032 sec, idle 1 sec]
zabbix 8132 0.0 0.3 257792 3592 ? S 22:15 0:00 /usr/sbin/zabbix_server: history syncer #2 [processed 0 values, 0 triggers in 0.000026 sec, idle 1 sec]
zabbix 8134 0.0 0.3 257820 3432 ? S 22:15 0:00 /usr/sbin/zabbix_server: history syncer #3 [processed 0 values, 0 triggers in 0.000053 sec, idle 1 sec]
zabbix 8136 0.0 0.3 257844 3524 ? S 22:15 0:00 /usr/sbin/zabbix_server: history syncer #4 [processed 0 values, 0 triggers in 0.000024 sec, idle 1 sec]
zabbix 8137 0.0 0.3 257668 3828 ? S 22:15 0:00 /usr/sbin/zabbix_server: escalator #1 [processed 0 escalations in 0.002923 sec, idle 3 sec]
zabbix 8138 0.0 0.3 257668 3828 ? S 22:15 0:00 /usr/sbin/zabbix_server: proxy poller #1 [exchanged data with 0 proxies in 0.000127 sec, idle 5 sec]
zabbix 8139 0.0 0.2 257668 20 ? S 22:15 0:00 /usr/sbin/zabbix_server: self-monitoring [processed data in 0.000021 sec, idle 1 sec]
zabbix 8140 0.0 0.2 257668 2916 ? S 22:15 0:00 /usr/sbin/zabbix_server: task manager [processed 0 task(s) in 0.000742 sec, idle 5 sec]
zabbix 8141 0.0 0.5 365412 5504 ? S 22:15 0:00 /usr/sbin/zabbix_server: poller #1 [got 0 values in 0.000011 sec, idle 5 sec]
zabbix 8142 0.0 0.5 365412 5504 ? S 22:15 0:00 /usr/sbin/zabbix_server: poller #2 [got 0 values in 0.000009 sec, idle 5 sec]
zabbix 8143 0.0 0.5 365412 5504 ? S 22:15 0:00 /usr/sbin/zabbix_server: poller #3 [got 0 values in 0.000010 sec, idle 5 sec]
zabbix 8144 0.0 0.5 365412 5528 ? S 22:15 0:00 /usr/sbin/zabbix_server: poller #4 [got 0 values in 0.000031 sec, idle 5 sec]
zabbix 8145 0.0 0.5 365412 5500 ? S 22:15 0:00 /usr/sbin/zabbix_server: poller #5 [got 0 values in 0.000031 sec, idle 5 sec]
zabbix 8146 0.0 0.5 365412 55 ? S 22:15 0:00 /usr/sbin/zabbix_server: unreachable poller #1 [got 0 values in 0.000058 sec, idle 4 sec]
zabbix 8147 0.0 0.3 257668 34 ? S 22:15 0:00 /usr/sbin/zabbix_server: trapper #1 [processed data in 0.000000 sec, waiting for connection]
zabbix 8148 0.0 0.3 257668 34 ? S 22:15 0:00 /usr/sbin/zabbix_server: trapper #2 [processed data in 0.000000 sec, waiting for connection]
zabbix 8149 0.0 0.3 257668 34 ? S 22:15 0:00 /usr/sbin/zabbix_server: trapper #3 [processed data in 0.000000 sec, waiting for connection]
zabbix 8150 0.0 0.3 257668 34 ? S 22:15 0:00 /usr/sbin/zabbix_server: trapper #4 [processed data in 0.000000 sec, waiting for connection]
zabbix 8151 0.0 0.3 257668 34 ? S 22:15 0:00 /usr/sbin/zabbix_server: trapper #5 [processed data in 0.000000 sec, waiting for connection]
zabbix 8152 0.0 0.2 261044 28 ? S 22:15 0:00 /usr/sbin/zabbix_server: icmp pinger #1 [got 0 values in 0.000025 sec, idle 5 sec]
zabbix 8159 0.0 0.3 257668 3320 ? S 22:15 0:00 /usr/sbin/zabbix_server: alert manager #1 [sent 0, failed 0 alerts, idle 5.012806 sec during 5.012875 sec]
zabbix 8160 0.0 0.3 257668 3072 ? S 22:15 0:00 /usr/sbin/zabbix_server: preprocessing manager #1 [queued 0, processed 0 values, idle 5.002992 sec during 5.003076 sec]
zabbix 8166 0.0 0.2 257668 2712 ? S 22:15 0:00 /usr/sbin/zabbix_server: preprocessing worker #1 started
zabbix 8167 0.0 0.2 257668 2712 ? S 22:15 0:00 /usr/sbin/zabbix_server: preprocessing worker #2 started
zabbix 8169 0.0 0.2 257668 2604 ? S 22:15 0:00 /usr/sbin/zabbix_server: preprocessing worker #3 started
root 8185 0.0 0.0 112728 988 pts/0 S+ 22:18 0:00 grep --color=auto zabbix
[root@wangzb01 ~]# vim /etc/zabbix/zabbix_server.conf
Server=127.0.0.1
ServerActive=127.0.0.1
[root@wangzb01 ~]# systemctl start zabbix-agent
[root@wangzb01 ~]# ps aux | grep zabbix_agent
zabbix 8209 0.0 0.1 80784 1300 ? S 22:23 0:00 /usr/sbin/zabbix_agend -c /etc/zabbix/zabbix_agentd.conf
zabbix 8210 0.0 0.1 80784 1380 ? S 22:23 0:00 /usr/sbin/zabbix_agend: collector [idle 1 sec]
zabbix 8211 0.0 0.1 80784 1848 ? S 22:23 0:00 /usr/sbin/zabbix_agend: listener #1 [waiting for connection]
zabbix 8212 0.0 0.2 80784 2140 ? S 22:23 0:00 /usr/sbin/zabbix_agend: listener #2 [waiting for connection]
zabbix 8213 0.0 0.1 80784 1848 ? S 22:23 0:00 /usr/sbin/zabbix_agend: listener #3 [waiting for connection]
zabbix 8214 0.0 0.2 80916 2128 ? S 22:23 0:00 /usr/sbin/zabbix_agend: active checks #1 [idle 1 sec]
root 8218 0.0 0.0 112724 992 pts/0 S+ 22:24 0:00 grep --color=auto zabbix_agent
由于nginx的80端口和zabbix需要的httpd服务的80端口冲突，因此需要停用nginx服务并启用httpd服务
[root@wangzb01 ~]# systemctl stop nginx
[root@wangzb01 ~]# systemctl start httpd
[root@wangzb01 ~]# netstat -lntp
tcp6 0 0 :::80 :::* LISTEN 8554/httpd
可以看到80端口对应的服务是httpd
有fail，需要定义时区
[root@wangzb01 ~]# vim /etc/php.ini
date.timezone = Aisa/Shanghai
[root@wangzb01 ~]# systemctl restart httpd
返回浏览器界面刷新一下，就全部OK了
点击下一步
输入server信息点击下一步
进入zabbix界面，到此，zabbix服务端安装完成。