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zabbix如何监控WEB应用性能

HTTP服务目前最流行的互联网应用之一，如何监控服务的健康状态对系统运维来说至关重要。

Zabbix本身提供了对WEB应用程序的监控，比如监控WEB程序的Download Speed,Response Time和Response Code等性能指标，但是配置起来比较繁琐和复杂。下面通过 python pycurl模块来获取HTTP响应时间，下载速度，状态吗等性能指标。然后通过zabbix trapper的方式来监控WEB应用的性能。

Zabbix trapper监控是客户端收集监控数据，然后以zabbix_sender的方式发送给zabbix server或者proxy服务器。发送的数据主要包括zabbix server或者proxy主机名，监控项和值。zabbix_sender具体用法如下：

[root@monitor]# /usr/local/zabbix/bin/zabbix_sender -help Zabbix Sender v2.2.3 (revision 44105) (7 April 2014) usage: zabbix_sender [-Vhv] {[-zpsI] -ko | [-zpI] -T -i <file> -r} [-c <file>] Options:   -c --config <file>                   Absolute path to the configuration file   -z --zabbix-server <server>          Hostname or IP address of Zabbix server   -p --port <server port>              Specify port number of server trapper running on the server. Default is 10051   -s --host <hostname>                 Specify host name. Host IP address and DNS name will not work   -I --source-address <IP address>     Specify source IP address   -k --key <key>                       Specify item key   -o --value <key value>               Specify value   -i --input-file <input file>         Load values from input file. Specify - for standard input                                        Each line of file contains whitespace delimited: <hostname> <key> <value>                                        Specify - in <hostname> to use hostname from configuration file or --host argument   -T --with-timestamps                 Each line of file contains whitespace delimited: <hostname> <key> <timestamp> <value>                                        This can be used with --input-file option                                        Timestamp should be specified in Unix timestamp format   -r --real-time                       Send metrics one by one as soon as they are received                                        This can be used when reading from standard input   -v --verbose                         Verbose mode, -vv for more details Other options:   -h --help                            Give this help   -V --version                         Display version number

下面是我用python写的监控脚本，如果要监控多个网站，只需在list列表里面添加即可。

[root@monitor cron]# cat Check_HTTP_Response_Time.py #!/usr/bin/env python #coding=utf-8 #Auth:david import os import sys import fileinput import pycurl import logging hostname = "monitor" #IP from Zabbix Server or proxy where data should be send to. zabbix_server = "192.168.100.200"  zabbix_sender = "/usr/local/zabbix/bin/zabbix_sender" #If add url of website, please update list. list = ['www.zmzblog.com','img.zmzblog.com'] #This list define zabbix key. key = ['HTTP_ResSize','HTTP_ResTime','HTTP_ResCode','HTTP_ResSpeed'] #In the file to define the monitor host, key and value. log_file = "/tmp/HTTP_Response.log" logging.basicConfig(filename=log_file,level=logging.INFO,filemode='w') run_cmd="%s -z %s -i %s > /tmp/HTTP_Response.temp" % (zabbix_sender,zabbix_server,log_file) class Test():         def __init__(self):                 self.contents = ''         def body_callback(self,buf):                 self.contents = self.contents + buf def Check_Http(URL):         t = Test()         #gzip_test = file("gzip_test.txt", 'w')         c = pycurl.Curl()         c.setopt(pycurl.WRITEFUNCTION,t.body_callback)     #请求采用Gzip传输         #c.setopt(pycurl.ENCODING, 'gzip')     try:         c.setopt(pycurl.CONNECTTIMEOUT, 60)             c.setopt(pycurl.URL,URL)                 c.perform()     except pycurl.error:         print "URL %s" % URL                  Http_Document_size = c.getinfo(c.SIZE_DOWNLOAD)         Http_Download_speed = round((c.getinfo(pycurl.SPEED_DOWNLOAD) /1024),2)         Http_Total_time = round((c.getinfo(pycurl.TOTAL_TIME) * 1000),2)         Http_Response_code = c.getinfo(pycurl.HTTP_CODE)                  logging.info(hostname +' ' +key[0] + '[' + k + ']' + ' '+str(Http_Document_size))         logging.info(hostname +' ' +key[1] + '[' + k + ']' + ' '+str(Http_Total_time))         logging.info(hostname +' ' +key[2] + '[' + k + ']' + ' '+str(Http_Response_code))         logging.info(hostname +' ' +key[3] + '[' + k + ']' + ' '+str(Http_Download_speed))           def runCmd(command):     for u in list:             URL = u         global k         if u.startswith('https:'):            k = u.split('/')[2]         else:                    k=u.split('/')[0]             Check_Http(URL)     for line in fileinput.input(log_file,inplace=1):         print line.replace('INFO:root:',''),     return os.system(command) runCmd(run_cmd)

添加crontab，定期收集数据并发送给zabbix server服务器。

*/5 * * * * /zabbix/python/cron/Check_HTTP_Response.py

然后在前端配置监控项，可以调用zabbix API批量添加监控项。下面以www.zmzblog.com为例来说明如何监控HTTP的响应时间。这里所有的监控类型都是Zabbix_trapper的方式。监控key HTTP_ResTime[www.zmzblog.com]，

HTTP_ResCode[www.zmzblog.com]，HTTP_ResSize[www.zmzblog.com]，HTTP_ResSpeed[www.zmzblog.com]分别表示HTTP的响应时间，状态吗，文档大小和下载速度。

zabbix如何监控WEB应用性能

配置完监控项之后我们配置触发器，因为现在网站的响应时间都是毫秒级别的，如果超过1000ms就报警。

zabbix如何监控WEB应用性能

HTTP响应状态吗。

zabbix如何监控WEB应用性能

总结：WEB应用性能监控主要从下面两个方面进行监控。

1）HTTP的响应时间，随着互联网的发展，用户体验提升。网站的打开速度监控一定要快，至少要在毫秒级别。

2）HTTP的状态吗，实时监控网站的响应吗是否正常，是否出现了404,500这样的错误，这种错误是用户无法忍受的，如果出现要第一时间解决。

3）由于网络或者其它原因，为了减少误报，建议用下面的触发器，即检测2次如果状态吗不为200或者大于400的时候报警。

{Template HTTP Response:HTTP_ResCode[www.zmzblog.com].count(#2,200,”ne”)}=2{Template HTTP Response:HTTP_ResCode[www.zmzblog.com].count(#2,400,”ge”)}=2

原文 http://sfzhang88.blog.51cto.com/4995876/1826763

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