ZABBIX proxy, sender (without agent monitoring), performance optimization

terms of settlement : Configure the public network for the Shanghai machine IP, But if you configure the public network for all the machines IP, Then the security problem is very serious , This method is not feasible

This time can lead to proxy,proxy All of the mobile phones agent data , Cache it for a while before handing it over to zabbix-server.
proxy It is suitable for the configuration of multiple machine rooms , The graph is as follows ：

2、 to proxy Two network cards should be configured during configuration , An Internet connection , An intranet connection

(1). install zabbix-proxy
yum install zabbix-proxy-mysql -y
(2). To configure zabbix-proxy
a. Install and start mariadb
b. Chuangku Authorization , And import data 
create database zabbix_proxy;
grant all on zabbix_proxy.* to [email protected]'proxy host IP' identified by '123456'; 
zcat /usr/share/doc/zabbix-proxy-mysql-4.0.11/schema.sql \.gz|mysql -uzabbix -p123456 -h 10.0.0.61 zabbix_proxy   Import data 
c. modify zabbix-proxy The configuration file 
vim /etc/zabbix/zabbix_proxy.conf
Server=10.0.0.61 (zabbix-server The address of )
Hostname=sh-proxy( Look at the area , This is Shanghai )
DBHost=10.0.0.61
DBName=zabbix_proxy
DBUser=zabbix
DBPassword=123456
(3) start-up zabbix-proxy
systemctl  start zabbix-proxy

3、 The configuration of the virtual machine has been completed , Now in zabbix-web Configure the above settings on the interface proxy name

4、 take agent Modify the configuration file of

vim /etc/zabbix/zabbix_agent.conf
Server=172.16.1.100
Server Active=172.16.1.100(proxy Of IP)
Hostname=172.16.1.7( This is a agent Intranet address )
systemctl restart agent

5、 Refresh the page to see sh-proxy And corresponding agentIP Address

6、 You can see available The word log represents proxy Configuration is successful
vim /var/log/zabbix/zabbix_proxy.log

Two 、zabbix-sender( nothing agent monitor )
Some banking systems do not allow you to install software on the server, but you still have to do zabbix monitor , At this point, you can lead to zabbix-sender
First installation sender

rpm -ivh http://mirrors.aliyun.com/zabbix/zabbix/3.0/rhel/7/x86_64/zabbix-sender-3.0.25-1.e17.x86_64.rpm

And then in zabbix-web Inside 10.0.0.7 Configure and add monitoring items in the host , The following collector is sender, Here we check the memory capacity

Then send data on the command line ,-z Specify the server IP,-s Appoint sender Their own IP,-k It is the name of the above figure ,-o Represents the data sent

stay zabbix-web Refresh in the interface , You can see the newly added in the latest data 430 This value

Of course, the value sent should not be fake , So I have to write a script to get the value , And write in the sent command

vim /server/scripts/avaimem.sh
#!/bin/bash
MEM=`free -m|awk '/^Mem/{print $NF}'`
zabbix_sender -z 10.0.0.61 -s 10.0.0.7 -k avaiMEM -o $MEM 

But I just said that the banking system is not allowed to install software , So this one sender It's still a software ？ Here we can use nc Instead of , Almost all servers support nc, First installation nc, The two scripts are as follows

yum install nc -y &> /dev/null
vim /server/scripts/zabbix_sender.sh
#!/bin/bash
host=$1
item=$2
value=$3
echo '{"request" :"sender data","data":[{"host":'\"$host\"',"key":\"$item\"',"value":'\"$value"\"'}]}'|nc 10.0.0.61 10051 && echo ""
10.0.0.61 yes zabbix-server The address of 

vim /server/scripts/avaimem.sh
#!/bin/bash
MEM=`free -m|awk '/^Mem/{print $NF}'`
/bin/bash /server/scripts/zabbix_sender.sh 10.0.0.7 avaiMEM -o $MEM

sh avaimem.sh 

You can see that the execution was successful

stay web Interface view , The current memory available value is 712MB
nothing agent Monitoring succeeded ,sender Than agent Efficient , However, if the data to be monitored has multiple values, it is very complicated , Want to take top You don't know how to get the dynamic value , Not as good as agent Simple

3、 ... and 、zabbix performance optimization ( monitor )

(1) in the light of mysql, Write less and read less. , hand dba
(2) Remove useless monitoring items , Increase the value interval of monitoring items , Reduce the storage cycle of historical data , Historical data saved in 5 Zhang biaoli
(3) Change passive mode to active mode , increase zabbix-proxy
(4) in the light of zabbix-server Process tuning , Who's busy , Just increase the number of processes
(5) in the light of zabbix-server Cache tuning , Who has less memory left , Just increase its cache value
(6) in the light of zabbix A table of historical data and trend charts , Periodic sub table