zabbix添加top10内存和cpu资源占用情况

系统并发量大了以后容易出现性能瓶颈，快速找出占用内存和cpu资源较多的进程，可以为快速定位问题提供参考

找出top10内存和cpu的进程可以作为参考

1.编写监控脚本

自动发现进程脚本

# vim /usr/local/zabbix_agents_3.2.0/scripts/discovery_process.sh

#!/bin/bash
#system process discovery script
top -b -n 1 > /tmp/.top.txt && chown zabbix. /tmp/.top.txt
proc_array=(`tail -n +8 /tmp/.top.txt | awk '{a[$NF]+=$10}END{for(k in a)print a[k],k}'|sort -gr|head -10|cut -d" " -f2`)
length=${#proc_array[@]}
 
printf "{
"
printf '	'""data":["
for ((i=0;i<$length;i++))
do
    printf "
		{"
    printf ""{#PROCESS_NAME}":"${proc_array[$i]}"}"
    if [ $i -lt $[$length-1] ];then
        printf ","
    fi
done
    printf "
	]
"
printf "}
"

# 具体的cpu，内存等资源使用情况取值脚本

# cat /usr/local/zabbix_agents_3.2.0/scripts/process_check.sh

#!/bin/bash
#system process CPU&MEM use information
#mail: mail@huangming.org
mode=$1
name=$2
process=$3
mem_total=$(cat /proc/meminfo | grep "MemTotal" | awk '{printf "%.f",$2/1024}')
cpu_total=$(( $(cat /proc/cpuinfo | grep "processor" | wc -l) * 100 ))
 
function mempre {
    mem_pre=`tail -n +8 /tmp/.top.txt | awk '{a[$NF]+=$10}END{for(k in a)print a[k],k}' | grep "${process}" | cut -d" " -f1`
    echo "$mem_pre"
}
 
function memuse {
    mem_use=`tail -n +8 /tmp/.top.txt | awk '{a[$NF]+=$10}END{for(k in a)print a[k]/100*'''${mem_total}''',k}' | grep "${process}" | cut -d" " -f1`
    echo "$mem_use" | awk '{printf "%.f",$1*1024*1024}'
}
 
function cpuuse {
    cpu_use=`tail -n +8 /tmp/.top.txt | awk '{a[$NF]+=$9}END{for(k in a)print a[k],k}' | grep "${process}" | cut -d" " -f1`
    echo "$cpu_use"
}
 
function cpupre {
    cpu_pre=`tail -n +8 /tmp/.top.txt | awk '{a[$NF]+=$9}END{for(k in a)print a[k]/('''${cpu_total}'''),k}' | grep "${process}" | cut -d" " -f1`
    echo "$cpu_pre"
}
 
 
case $name in
    mem)
        if [ "$mode" = "pre" ];then
            mempre
        elif [ "$mode" = "avg" ];then
            memuse
        fi
    ;;
    cpu)
        if [ "$mode" = "pre" ];then
            cpupre
        elif [ "$mode" = "avg" ];then
            cpuuse
        fi
    ;;
    *)
        echo -e "Usage: $0 [mode : pre|avg] [mem|cpu] [process]"
esac

# 创建监控项
# vim /usr/local/zabbix_agents_3.2.0/conf/zabbix_agentd.conf

UserParameter=discovery.process,/usr/local/zabbix_agents_3.2.0/scripts/discovery_process.sh
UserParameter=process.check[*],/usr/local/zabbix_agents_3.2.0/scripts/process_check.sh $1 $2 $3

chown zabbix.zabbix /tmp/.top.txt

2.创建模板

Template linux_discovery_process_status

应用，方便后面观察结果使用：
process_cpu_status
process_mem_status

创建完模版之后，添加自动发现规则

Discovery rules -->Create discovesy rule

name :process cpu and mem status discovery

key : discovery.process

添加具体的Item prototypes

cpu:

process cpu and mem status discovery
name: cpu_percent{#PROCESS_NAME}
key: process.check[avg,cpu,{#PROCESS_NAME}]

内存：
Item prototypes --> Create item prototype

name: mem_percent{#PROCESS_NAME}
key: process.check[pre,mem,{#PROCESS_NAME}]


注意 unit 是 % ，数据类型是 float
查看监控数据