鉴于每个月需要把公司上千台的服务的cpu使用利率，CPU负载，内存使用率、网络流量等数据取出，以前是手动通过zabbix的平台去获取，每次都需要花费1-2小时才能完成这个需求，太耗时，因此优化为systat软件采集数据，然后通过python脚本处理/var/log/sa下采集到数据，然后入库到mysql数据库中，以后每次取数据，只需要一行sql代码就能获取到数据，方便快捷，本文把采集数据的脚本截图，如下所示：
最后附上完整代码：
#!/bin/python2.7
#coding: utf-8
#################脚本用法:要取哪天的数据就输入哪天的时间，比如9月1输入应为20190901
import os
import sys
import datetime
import commands
import time
def get_cpu(sdate,edate):
cpunum = int(commands.getoutput("cat /proc/cpuinfo |grep processor|wc -l"))
path = os.popen("find /var/log/sa/ -type f -newermt "+sdate+" ! -newermt "+edate+" |grep -v sar").readlines()
path = [m.rstrip("\n") for m in path]
for n in path:
idle = os.popen("sar -f "+n+" -u|awk '{print $NF}'|sed '1,3d'|sed '$d'|sed '/^$/d'").readlines()
data = list(idle)
data = [i.rstrip("\n") for i in idle]
data = [j for j in data if j != '']
while '%idle' in data: data.remove("%idle") while 'RESTART' in data: data.remove("RESTART") data_tmp = list(map(float,data)) data_num = [100-x for x in data_tmp] max_num = max(data_num) min_num = min(data_num) average_num=sum(data_num)/len(data_num) print("%s CPU useed max:%.4f,min:%.4f,average:%.4f" % (n,max_num,min_num,average_num))def get_dev(sdate,edate):
net = commands.getoutput("route -n|sed '1,2d'|awk -F' ' '{print $1,$8}'|grep 0.0.0.0|awk -F' ' '{print $2}'|sed -n '1p'")
rxkB=list()
txkB=list()
path = os.popen("find /var/log/sa/ -type f -newermt "+sdate+" ! -newermt "+edate+" |grep -v sar").readlines()
path = [m.rstrip("\n") for m in path]
for n in path: rxkB = commands.getoutput("sar -f "+n+" -n DEV|grep "+net+" |grep -v Average|awk -F' ' '{print $6}'|sed '$d'").split("\n") txkB = commands.getoutput("sar -f "+n+" -n DEV|grep "+net+" |grep -v Average|awk -F' ' '{print $7}'").split("\n") data_txkB = list(map(float,txkB)) max_txkB=max(data_txkB) min_txkB=min(data_txkB) average_txkB=sum(data_txkB)/len(data_txkB) data_rxkB = list(map(float,rxkB)) max_rxkB=max(data_rxkB) min_rxkB=min(data_rxkB) average_rxkB=sum(data_rxkB)/len(data_rxkB) print "%s rxval max:%.4f,min:%.4f,average:%.4f,dev:%s" %(n,max_rxkB,min_rxkB,average_rxkB,net) print "%s txval max:%.4f,min:%.4f,average:%.4f,dev:%s" %(n,max_txkB,min_txkB,average_txkB,net)def get_mem(sdate,edate):
path = os.popen("find /var/log/sa/ -type f -newermt "+sdate+" ! -newermt "+edate+" |grep -v sar").readlines()
path = [m.rstrip("\n") for m in path]
for n in path:
a=int(commands.getoutput("sar -f "+n+" -r|awk 'END{print NF}'")) if(a >= 11): memused = os.popen("sar -f "+n+" -r|grep -v ^$|grep -iv Linux|grep -iv memused|grep -iv Average|awk '{print(($(NF-8)-$(NF-5))/($(NF-9)+$(NF-8)))}'").readlines() else: memused = os.popen("sar -f "+n+" -r|grep -v ^$|grep -iv Linux|grep -iv memused|grep -iv Average|awk '{print(($(NF-5)-$(NF-2))/($(NF-6)+$(NF-5)))}'").readlines() data = list(memused) data = [i.rstrip("\n") for i in memused] data_num = list(map(float,data)) max_num=max(data_num) min_num=min(data_num) average_num=sum(data_num)/len(data_num) print "%s memused max:%.4f,min:%.4f,average:%.4f" %(n,max_num,min_num,average_num)def get_ldavg(sdate,edate):
cpunum = int(commands.getoutput("cat /proc/cpuinfo |grep processor|wc -l"))
path = os.popen("find /var/log/sa/ -type f -newermt "+sdate+" ! -newermt "+edate+" |grep -v sar").readlines()
path = [m.rstrip("\n") for m in path]
for n in path:
a=int(commands.getoutput("sar -f "+n+" -q|sed -n '10p'|awk 'END{print NF}'")) if a == 7: ldavg_1 = os.popen("sar -f "+n+" -q|awk -F' ' '{print $5}'|sed '1,3d'|sed '$d'|sed '/^$/d'|grep -v ldavg-1").readlines() ldavg_15 = os.popen("sar -f "+n+" -q|awk -F' ' '{print $7}'|sed '1,3d'|sed '$d'|sed '/^$/d'|grep -v ldavg-15").readlines() elif a == 8: ldavg_1 = os.popen("sar -f "+n+" -q|awk -F' ' '{print $5}'|sed '1,3d'|sed '$d'|sed '/^$/d'|grep -v ldavg-1").readlines() ldavg_15 = os.popen("sar -f "+n+" -q|awk -F' ' '{print $7}'|sed '1,3d'|sed '$d'|sed '/^$/d'|grep -v ldavg-15").readlines() elif a == 6: ldavg_1 = os.popen("sar -f "+n+" -q|awk -F' ' '{print $4}'|sed '1,3d'|sed '$d'|sed '/^$/d'|grep -v ldavg-1").readlines() ldavg_15 = os.popen("sar -f "+n+" -q|awk -F' ' '{print $6}'|sed '1,3d'|sed '$d'|sed '/^$/d'|grep -v ldavg-15").readlines() data1 = [i.rstrip("\n") for i in ldavg_1] data15 =[j.rstrip("\n") for j in ldavg_15] data1 = list(map(float,data1)) data15 = list(map(float,data15)) max_data1=max(data1) min_data1=min(data1) average_data1=sum(data1)/len(data1) max_data15=max(data15) min_data15=min(data15) average_data15=sum(data15)/len(data15) print "%s cpu 1minute load max:%.4f,min:%.4f,average:%.4f" %(n,max_data1/cpunum,min_data1/cpunum,average_data1/cpunum) print "%s cpu 15minute load max:%.4f,min:%.4f,average:%.4f" %(n,max_data15/cpunum,min_data15/cpunum,average_data15/cpunum)if name == "main":
sdate=sys.argv[1]
sdate=datetime.datetime.strptime(sdate,'%Y%m%d')
edate=sdate+datetime.timedelta(days=1)
sdate=sdate.strftime('%Y%m%d')
edate=edate.strftime('%Y%m%d')
get_cpu(sdate,edate)
get_ldavg(sdate,edate)
get_mem(sdate,edate)
get_dev(sdate,edate)
来源：51CTO
作者：Arvinlinux
链接：https://blog.51cto.com/10223750/2451794?source=drh