Zabbix与RRDtool绘图之创建每台主机每张图的rrd文件

下面我们一起来看一个关于Zabbix与RRDtool绘图之创建每台主机每张图的rrd文件文章，希望这个例子可以给你有帮助。

RRDtool对于图形展示有多优秀，想必懂的人都知道。

兵马未动粮草先行。搞IT的得手册先行RRDtool的官方手册地址http://oss.oetiker.ch/rrdtool/doc/index.en.html 还有ailms整理的“RRDtool简体中文教程 v1.01” 该教材通俗易懂，先膜拜下!基本看了alims的 那个教程就对RRDtool清楚了。

我创建每台主机每张rrd文件用的是多线程，遍历每张图的时间大概12秒的样子，千张图的rrd文件创建大概2分钟的样子，主要受硬件的限制，如果

有更快的硬盘和更多的线程应该会快不少。rrd文件分类参考了cacti的风格，创建的rrd文件按主机ID分文件夹存放(hostid)，每张图的名称

由图形ID和.rrd后缀组成(graphid.rrd)。

创建每个rrd文件的py模块如下，写的有点笨，有多少个不同的item组成的图形就得定义不同的创建函数，我找了一个下午都没有找到更好的传参方法，先

就用这个笨方法。记住有几种DS就需要写对应的Item函数，下面我只列出Item03，我是不会告诉你们我总共堆了24个一直到Item24

代码如下复制代码

#!/usr/bin/env python

#coding=utf-8

import rrdtool

def Item01(rrdname, startStamp, DS):

rrdtool.create(rrdname, '--step', '60', '--start', startStamp, DS[0],

'RRA:AVERAGE:0.5:1:3000',

'RRA:AVERAGE:0.5:5:4200',

'RRA:AVERAGE:0.5:24:3800',

'RRA:AVERAGE:0.5:240:4400',

'RRA:MAX:0.5:1:3000',

'RRA:MAX:0.5:5:4200',

'RRA:MAX:0.5:24:3800',

'RRA:MAX:0.5:240:4400',

'RRA:MIN:0.5:1:3000',

'RRA:MIN:0.5:5:4200',

'RRA:MIN:0.5:24:3800',

'RRA:MIN:0.5:240:4400')

def Item02(rrdname, startStamp, DS):

rrdtool.create(rrdname, '--step', '60', '--start', startStamp, DS[0],

DS[1],

'RRA:AVERAGE:0.5:1:3000',

'RRA:AVERAGE:0.5:5:4200',

'RRA:AVERAGE:0.5:24:3800',

'RRA:AVERAGE:0.5:240:4400',

'RRA:MAX:0.5:1:3000',

'RRA:MAX:0.5:5:4200',

'RRA:MAX:0.5:24:3800',

'RRA:MAX:0.5:240:4400',

'RRA:MIN:0.5:1:3000',

'RRA:MIN:0.5:5:4200',

'RRA:MIN:0.5:24:3800',

'RRA:MIN:0.5:240:4400')

def Item03(rrdname, startStamp, DS):

rrdtool.create(rrdname, '--step', '60', '--start', startStamp, DS[0],

DS[1], DS[2],

'RRA:AVERAGE:0.5:1:3000',

'RRA:AVERAGE:0.5:5:4200',

'RRA:AVERAGE:0.5:24:3800',

'RRA:AVERAGE:0.5:240:4400',

'RRA:MAX:0.5:1:3000',

'RRA:MAX:0.5:5:4200',

'RRA:MAX:0.5:24:3800',

'RRA:MAX:0.5:240:4400',

'RRA:MIN:0.5:1:3000',

'RRA:MIN:0.5:5:4200',

'RRA:MIN:0.5:24:3800',

'RRA:MIN:0.5:240:4400')

基本创建rrd文件的模块写好了，然后组织数据、调用函数传递相应的参数就可以了，下面是我写的一个多线程程序，同时启用16个线程工作(CPU线程数的2倍)。可更改线程数适应不同的硬件环境。

代码如下复制代码

#!/usr/bin/env python

#coding=utf-8

from zabbixget import Zabbix

from time import ctime

import threading

import createsub

import os

import time, datetime

def rrd_create(grinfo):

#如果主机存放rrd图形目录不存在,则创建

bashdir = "/opt/rrd/"

path = bashdir + grinfo[0]['hostid'] + "/"

if not os.path.exists(path):

os.makedirs(path)

rrdname = str(path + grinfo[0]['graphid'] + '.rrd')

timeDaysAgo = (datetime.datetime.now() - datetime.timedelta(days = 730))

startStamp = str(int(time.mktime(timeDaysAgo.timetuple())))

DS = []

for sub in grinfo:

DStmp = str('DS:' + sub['itemid'] + ':GAUGE:120:0:U')

DS.append(DStmp)

if len(DS) == 1: createsub.Item01(rrdname, startStamp, DS)

elif len(DS) == 2: createsub.Item02(rrdname, startStamp, DS)

elif len(DS) == 3: createsub.Item03(rrdname, startStamp, DS)

elif len(DS) == 4: createsub.Item04(rrdname, startStamp, DS)

elif len(DS) == 5: createsub.Item05(rrdname, startStamp, DS)

elif len(DS) == 6: createsub.Item06(rrdname, startStamp, DS)

elif len(DS) == 7: createsub.Item07(rrdname, startStamp, DS)

elif len(DS) == 8: createsub.Item08(rrdname, startStamp, DS)

elif len(DS) == 9: createsub.Item09(rrdname, startStamp, DS)

elif len(DS) == 10: createsub.Item10(rrdname, startStamp, DS)

elif len(DS) == 11: createsub.Item11(rrdname, startStamp, DS)

elif len(DS) == 12: createsub.Item12(rrdname, startStamp, DS)

elif len(DS) == 13: createsub.Item13(rrdname, startStamp, DS)

elif len(DS) == 14: createsub.Item14(rrdname, startStamp, DS)

elif len(DS) == 15: createsub.Item15(rrdname, startStamp, DS)

elif len(DS) == 16: createsub.Item16(rrdname, startStamp, DS)

elif len(DS) == 17: createsub.Item17(rrdname, startStamp, DS)

elif len(DS) == 18: createsub.Item18(rrdname, startStamp, DS)

elif len(DS) == 19: createsub.Item19(rrdname, startStamp, DS)

elif len(DS) == 20: createsub.Item20(rrdname, startStamp, DS)

elif len(DS) == 21: createsub.Item21(rrdname, startStamp, DS)

elif len(DS) == 22: createsub.Item22(rrdname, startStamp, DS)

elif len(DS) == 23: createsub.Item23(rrdname, startStamp, DS)

elif len(DS) == 24: createsub.Item24(rrdname, startStamp, DS)

def rrd_update(rrdfile, data):

pass

def hosts_get():

global zb

zb = Zabbix()

hostsName = zb.hostsid_get()

return hostsName

#遍历每台主机每张图的每个项目的最新10的值,后来考虑到api的压力改成每张图的最新值(减少了一个for循环变量items)

def items_get(host):

bashdir = "/opt/rrd/"

graphsName = zb.hostgraph_get(host.keys())

for graph in graphsName:

grapitem = zb.graphitems_get(graph['graphid'])

rrdfile = bashdir + host.values()[0] + "/" + str(graph['graphid']) + '.rrd'

if os.path.isfile(rrdfile):

data = []

for item in grapitem:

tmp = {'itemid':item['itemid'],'lastvalue':item['lastvalue']}

data.append(tmp)

rrd_update(rrdfile, data)

print data

else:

grinfo = []

for item in grapitem:

tmp = {'hostid': host.values()[0], 'graphid': graph['graphid'], 'itemid': item['itemid']}

grinfo.append(tmp)

rrd_create(grinfo)

def main():

threads = []

keys = hosts_get()

numkey = len(keys)

loop = 0

for i in range(0, numkey, 16):

nkeys = range(loop*16, (loop+1)*16, 1)

for i in nkeys:

if i >= numkey:

break

else:

t = threading.Thread(target=items_get, args=(keys[i],))

threads.append(t)

for i in nkeys:

if i >= numkey:

break

else:

threads[i].start()

for i in nkeys:

if i >= numkey:

break

threads[i].join()

loop = loop + 1

if __name__ == "__main__":

main()

上面还有更新数据的函数没有写完，用pass站位。过多的解释就不用了，对着相应的注释大家都应该看的懂。