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問題

客戶說keystone埠總在zabbit中報錯:

net.tcp.service.perf[http,,35357] 
({host1:net.tcp.service.perf[http,,35357].count(#3,0)}=3 & {host2:net.tcp.service.perf[http,,35357].count(#3,0)}=3) | {host1:net.tcp.service.perf[http,,35357].prev(0)}>15 | {host2:
 
net.tcp.service.perf[http,,35357].prev(0)}>15 
net.tcp.service.perf[http,,5000] 
({host1:net.tcp.service.perf[http,,5000].count(#3,0)}=3 & {host2:net.tcp.service.perf[http,,5000].count(#3,0)}=3) | {host1:net.tcp.service.perf[http,,5000].prev(0)}>15 | {host2:net.tcp.service.perf[http,,5000].prev(0)}>15 

改成下列的配置可能會減小誤報:

net.tcp.service.perf[http,,35357] 
({host1:net.tcp.service.perf[http,,35357].max(#3)}=0 & {host2:net.tcp.service.perf[http,,35357].max(#3)}=0) 
net.tcp.service.perf[http,,5000] 
({host1:net.tcp.service.perf[http,,5000].max(#3)}=0 & {host2:net.tcp.service.perf[http,,5000].max(#3)}=0) 

Zabbix是什麼? 我不是做運維的, 之前從來沒有用過也沒有聽說過這個名詞. 好吧, 學吧. 另外, 我發現網上安裝zabbix的文章一搜一堆堆的, 但沒有一篇照著是可以順利安裝成功的, 包括官方文件, 總共遇到了下列4個錯誤:

1. ‘Table ‘users’ already exists’
2. Job for zabbix-server.service failed because a configured resource limit was exceeded.
3. Cannot connect to the database.
4. Zabbix server cannot work with a Zabbix proxy database

所以我還是將這麼個玩意也寫篇部落格吧. Zabbix是一個監控軟體, Zabbix 3.0中提供的監控方式包括：
- Active agents
- Passive agents
- Extending agents
- Simple checks
- SNMP agents
- Zabbix Internal checks
- Zabbix trapper
- IPMI agents
- JMX agents
- External checks
- Database monitoring
- SSH agents
- Telnet agents
- SNMP Traps
- Aggregate checks
- Calculated checks

Install Zabbix Server

# https://tecadmin.net/install-zabbix-on-ubuntu/
wget https://repo.zabbix.com/zabbix/3.4/ubuntu/pool/main/z/zabbix-release/zabbix-release_3.4-1+xenial_all.deb
sudo dpkg -i zabbix-release_3.4-1+xenial_all.deb
sudo apt update
sudo apt install zabbix-server-mysql zabbix-frontend-php mysql-server
sudo apt-get install php php-mbstring php-gd php-xml php-bcmath php-ldap php-mysql libapache2-mod-php

sudo vim /etc/php/7.0/apache2/php.ini
[Date]
date.timezone = Asia/Shanghai
max_input_time = 600
max_execution_time= 600
post_max_size = 32M
sudo service apache2 restart

mysql -uroot -hlocalhost -ppassword
mysql> CREATE DATABASE zabbix CHARACTER SET utf8 COLLATE utf8_bin;
mysql> grant all privileges on zabbix.* to [email protected]'localhost' identified by 'password';
mysql> grant all privileges on zabbix.* to [email protected]'t440p.lan' identified by 'password';
mysql> flush privileges;
mysql> exit;

sudo zcat /usr/share/doc/zabbix-server-mysql/create.sql.gz |mysql -uzabbix -hlocalhost -p zabbix
#sudo zcat /usr/share/doc/zabbix-proxy-mysql/schema.sql.gz |mysql -uzabbix -hlocalhost -p zabbix
cat << EOF | sudo tee -a /etc/zabbix/zabbix_server.conf
DBHost=localhost
DBName=zabbix
DBUser=zabbix
DBPassword=password
EOF

#sudo apt install policycoreutils
#setsebool -P httpd_can_connect_zabbix on
sudo systemctl start zabbix-server
http://192.168.99.124  Admin/zabbix

Install Zabbix Agent

http://blog.51cto.com/dyc2005/1971212
wget https://repo.zabbix.com/zabbix/3.4/ubuntu/pool/main/z/zabbix-release/zabbix-release_3.4-1+xenial_all.deb
sudo dpkg -i zabbix-release_3.4-1+xenial_all.deb
sudo apt update
sudo apt install zabbix-agent
sudo vi /etc/zabbix/zabbix_agentd.conf
Server=192.168.99.124
ServerActive=192.168.99.124:1005 #主動提交監控資料時使用
sudo systemctl restart zabbix-agent

Configuration -> Templates -> Create Host
Click this host, and select the monitor template, eg: Template OS Linux 
How to Define template(http://blog.51cto.com/ywzhou/1579917), 'Configuration -> Templates', 
 - create 'Item' for this template, eg: net.tcp.service.perf[tcp,192.168.99.216,7070]
 - create 'Trigger' for this template
 - create 'Graph' for this template, it will link to 'Item'
 - Link template to Host

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