之前在做cdn运维的时候，因为业务的特殊性（跨机房，跨ISP，跨区域），把日志集中传输到一个中心来做qos的分析不太现实，因此采用的方法是每5分钟对nginx日志进行切割，然后通过python程序计算http code的分布，并通过zabbix来实现单台机器nginx qos的监控，配合对zabbix数据库的lastvalue进行聚合，则可以监控整个cdn的流量，qos数据等，这样一般发现问题的延迟就在5分钟左右（cdn的qos敏感性不是很强）,配合rsync+hadoop+hive来计算nginx的日志，也可以得到更加详细的各个维度的分析（离线数据分析），下面贴下nginx日志使用的分析脚本：

先贴下zabbix聚合脚本:

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#!/usr/bin/python
#to get webcdn totaol statistics
# -*- coding: utf8 -*-
import  MySQLdb
import  sys
import  os
def  get_total_value(sql):
     db  =  MySQLdb.connect(host = 'xxxx' ,user = 'xxxx' ,passwd = 'xxxx' ,db = 'xxxx' )
     cursor  =  db.cursor()
     cursor.execute(sql)
     try :  
         result  =  cursor.fetchone()[ 0 ]
     except :
         result  =  0
     cursor.close()
     db.close()
     return  result
if  __name__  = =  '__main__' :
     sql  =  ''
     if  sys.argv[ 1 ]  = =  "network_traffic" :
         sql  =  "select round(sum(lastvalue)/(1024*1024),4) from  hosts a, items b   where key_ in ( 'net.if.out[eth1,bytes]','net.if.out[eth0,bytes]') and lower(host) like '%-cdn-cache%'  and a.hostid = b.hostid"
     elif  sys.argv[ 1 ]  = =  "nginx_traffic" :
         sql  =  "select sum(lastvalue) from  hosts a, items b   where key_ = 'log_webcdn_getvalue[traffic]'   and lower(host) like '%cdn-cache%'  and a.hostid = b.hostid"
     elif  sys.argv[ 1 ]  = =  "2xxand3xx" :
         sql  =  "select sum(lastvalue) from  hosts a, items b   where key_ in ( 'log_webcdn_getvalue[200]','log_webcdn_getvalue[300]') and lower(host) like '%-cdn-cache%'  and a.hostid = b.hostid"
     elif  sys.argv[ 1 ]  = =  "4xxand5xx" :
         sql  =  "select sum(lastvalue) from  hosts a, items b   where key_ in ( 'log_webcdn_getvalue[four]','log_webcdn_getvalue[five]') and lower(host) like '%-cdn-cache%'  and a.hostid = b.hostid"
     elif  sys.argv[ 1 ]  = =  "network_ss" :
         sql  =  "select sum(lastvalue) from  hosts a, items b   where key_ = 'network_conn' and lower(host) like '%-cdn-cache%'  and a.hostid = b.hostid"
     else :
         sys.exit( 0 )
#    print sql
     value  =  get_total_value(sql)
     print  value

然后是单台的分析脚本：

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#!/usr/bin/python
#coding=utf-8
from  __future__  import  division
import  subprocess, signal,string
import  codecs
import  re
import  os
import  time, datetime
import  sys
def  show_usage():
     print  """
         python nginx_log_wedcdn.py result_key
         result_key could be:
         average_bodysize, response_time, sum_count, count_success, four, 403, 404, 499, five, 500, 502, 503, 200, 300, requests_second
         response_time_source, percentage_time_1, percentage_time_3, all
           """
def  runCmd(command, timeout  =  10 ):
     start  =  datetime.datetime.now()
     process  =  subprocess.Popen(command, stdout = subprocess.PIPE, stderr = subprocess.PIPE, shell = True )
     while  process.poll()  is  None :
         time.sleep( 0.2 )
         now  =  datetime.datetime.now()
         if  (now  -  start).seconds > timeout:
             os.kill(process.pid, signal.SIGKILL)
             os.waitpid( - 1 , os.WNOHANG)
             return  None
     return  process.stdout.readlines()
def  get_old_filename():
     t  =  datetime.datetime.now()  +  datetime.timedelta(minutes  =  - 5 )
     a  =  t.strftime( '%Y-%m-%d-%H' )
     b  =  t.strftime( '%M' )
     b  =  int (b) / / 5 * 5
     if  b <  10 :
         c  =  "0"  +  str (b)
     else :
         c  =  str (b)
     d  =  "/log/nginx/old/"  +  a  +  "-%s.log.gz"  %  c
     #print d
     return  d
def  get_new_filename():
     t  =  datetime.datetime.now()  +  datetime.timedelta(minutes  =  - 5 )
     a  =  t.strftime( '%Y-%m-%d-%H' )
     b  =  t.strftime( '%M' )
     b  =  int (b) / / 5 * 5
     if  b <  10 :
         c  =  "0"  +  str (b)
     else :
         c  =  str (b)
     d  =  "/log/nginx/old/"  +  a  +  "-%s.log"  %  c
     #print d
     return  d
def  get_new2_filename():
     t  =  datetime.datetime.now()  +  datetime.timedelta(minutes  =  - 5 )
     a  =  t.strftime( '%Y-%m-%d-%H' )
     b  =  t.strftime( '%M' )
     b  =  int (b) / / 5 * 5
     if  b <  10 :
         c  =  "0"  +  str (b)
     else :
         c  =  str (b)
     d  =  "/log/nginx/new/"  +  a  +  "-%s.log"  %  c
     #print d
     return  d
def  average_flow():
     flow  =  0
     flow1  =  0
     flow_ppsucai  =  0
     flow_asimgs  =  0
     flow_static9  =  0
     traffic  =  0.0
     traffic1  =  0.0
     count  =  0
     count_sucai  =  0
     count_sucai_100  =  0
     count_sucai_30_100  =  0
     count_sucai_30  =  0
     count_asimgs  =  0
     count_asimgs_100  =  0
     count_asimgs_30_100  =  0
     count_asimgs_30  =  0
     count_static9  =  0
     count_static9_100  =  0
     count_static9_30_100  =  0
     count_static9_30  =  0
     sum_time  =  0.0
     sum_ppsucai_time  =  0.0
     sum_asimgs_time  =  0.0
     sum_static9_time  =  0.0
     sum_time_source  =  0.0
     count_200  =  0
     count_300  =  0
     count_success  =  0
     count_200_backup  =  0
     count_not_200_backup  =  0
     id_list_200  =  [ 200 , 206 ]
     id_list_300  =  [ 300 , 301 , 302 , 303 , 304 , 305 , 306 , 307 ]
     id_list_success  =  [ 200 , 206 , 300 , 301 , 302 , 303 , 304 , 305 , 306 , 307 ]
     data_byte  =  0
     elapsed  =  0.0
     response_time  =  0.0
     response_time_source  =  0.0
     requests_second  =  0.0
     requests_second_sucai  =  0.0
     requests_second_asimgs  =  0.0
     list_time_1  =  []
     list_time_3  =  []
     list_ip_403  =  []
     list_ip_404  =  []
     list_ip_415  =  []
     list_ip_499  =  []
     list_ip_500  =  []
     list_ip_502  =  []
     list_ip_503  =  []
     server_list  =  [ '"127.0.0.1:8080"' , '"127.0.0.1:8081"' , '"-"' ]
     file_name  =  get_old_filename()
     if  os.path.isfile( "%s"  %  file_name):
         Writelog(file_name)
         i  =  os.popen( "/bin/zcat %s"  %  file_name).readlines()
         #i = gzip.GzipFile("%s" % file_name).readlines()
     else :
         file_name  =  get_new_filename()
         if  os.path.isfile( "%s"  %  file_name):
             Writelog(file_name)
             i  =  os.popen( "/bin/cat %s"  %  file_name).readlines()
         else :
             #time.sleep(15)
             file_name  =  get_new2_filename()
             if  os.path.isfile( "%s"  %  file_name):
                 Writelog(file_name)
                 i  =  os.popen( "/bin/cat %s"  %  file_name).readlines()
             else :
                 os.popen( "rm -f /tmp/exist.txt" )
                 sys.exit( 1 )
     for  line  in  i:
             count  + =  1
             try :
                 domain_name  =  line.split()[ 1 ]
             except :
                 pass  
             try :
                 web_code  =  int (line.split()[ 8 ])
             except :
                 web_code  =  888
             try :
                 IP  =  str (line.split()[ 0 ])
             except :
                 pass
             try :  
                 data_byte  =  int (line.split()[ 9 ])
                 #print "data", data_byte
             except :
                 data_byte  =  0.0001
             try :
                 elapsed  =  float (line.split()[ - 1 ].strip( '"'))
                 if elapsed == 0.000:
                     elapsed = 0.0001
             except:
                 elapsed = 0.0001
             try:  
                 time_source = float(line.split()[-4].strip('"' ))
             except :
                 time_source  =  0.0
             try :
                 backup_server  =   str (line.split()[ - 3 ])
             except :
                 pass
             flow1  + =  data_byte
             if  web_code  in  id_list_success:
                 flow  + =  data_byte
                 sum_time_source  + =  time_source
                 if  domain_name ! =  "ppsucai.pptv.com" :
                     sum_time  + =  elapsed
                 else :
                     #print domain_name
                     sum_time  + =  0.000
             if  web_code  in  id_list_200:
                 #print web_code
                 count_200  + =  1
                 if  backup_server  not  in  server_list:
                     #print web_code, backup_server
                     count_200_backup  + =  1
             elif  web_code  = =  200  and  date_byte  = =  0 :
                 #print line.split()[3].lstrip("[")
                 WriteURLInfo(line.split()[ 3 ].lstrip( "[" ))
                 WriteURLInfo( "\t" )
                 WriteURLInfo(line.split()[ 10 ])
                 WriteURLInfo( "\n" )
             elif  web_code  in  id_list_300:
                 count_300  + =  1
             elif  web_code  = =  403  and  IP  not  in  list_ip_403:
                 list_ip_403.append(IP)
                 #print "this is the sum 403 count:", IP, len(list_ip_403)
             elif  web_code  = =  404  and  IP  not  in  list_ip_404:
                 list_ip_404.append(IP)
                 #print "this is the sum 404 count:", IP, len(list_ip_404)
             elif  web_code  = =  415  and  IP  not  in  list_ip_415:
                 list_ip_415.append(IP)
                 #print "this is the sum 415 count:", IP, len(list_ip_415)
             elif  web_code  = =  499  and  IP  not  in  list_ip_499:
                 list_ip_499.append(IP)
                 #print "this is the sum 499 count:", IP, len(list_ip_499)
             elif  web_code  = =  500  and  IP  not  in  list_ip_500:
                 list_ip_500.append(IP)
                 #print "this is the sum 500 count:", IP, len(list_ip_500)
             elif  web_code  = =  502  and  IP  not  in  list_ip_502:
                 list_ip_502.append(IP)
                 #print "this is the sum 502 count:", IP, len(list_ip_502)
             elif  web_code  = =  503  and  IP  not  in  list_ip_503:
                 list_ip_503.append(IP)
                 #print "this is the sum 503 count:", IP, len(list_ip_503)
             if  web_code  not  in  id_list_200  and  backup_server  not  in  server_list:
                 #print web_code, backup_server
                 count_not_200_backup  + =  1
                                                                                         
             if  elapsed >  1.0  and  web_code  in  id_list_success  and  IP  not  in  list_time_1:
                 list_time_1.append(IP)
             elif  elapsed >  3.0  and  web_code  in  id_list_success  and  IP  not  in  list_time_3:
                 list_time_3.append(IP)
                                                                                     
             if  domain_name  = =  "ppsucai.pptv.com"  and  web_code  in  id_list_success:
                 download_speed_sucai  =  round (data_byte  /  elapsed  /  1024 ,  2 )
                 flow_ppsucai  + =  data_byte
                 sum_ppsucai_time  + =  elapsed
                 count_sucai  + =  1
                 if  download_speed_sucai > =  100 :
                     count_sucai_100  + =  1
                 elif  download_speed_sucai <  100  and  download_speed_sucai > =  30 :
                     count_sucai_30_100  + =  1
                 else :
                     count_sucai_30  + =  1
             elif  domain_name  = =  "asimgs.pplive.cn"  and  web_code  in  id_list_success:
                 download_speed_asimgs  =  round (data_byte  /  elapsed  /  1024 ,  2 )
                 flow_asimgs  + =  data_byte
                 sum_asimgs_time  + =  elapsed
                 count_asimgs  + =  1
                 if  download_speed_asimgs > =  100 :
                     count_asimgs_100  + =  1
                 elif  download_speed_asimgs <  100  and  download_speed_asimgs > =  30 :
                     count_asimgs_30_100  + =  1
                 else :
                     count_asimgs_30  + =  1
             elif  domain_name  = =  "static9.pplive.cn"  and  web_code  in  id_list_success:
                 download_speed_static9  =  round (data_byte  /  elapsed  /  1024 ,  2 )
                 flow_static9  + =  data_byte
                 sum_static9_time  + =  elapsed
                 count_static9  + =  1
                 if  download_speed_static9 > =  100 :
                     count_static9_100  + =  1
                 elif  download_speed_static9 <  100  and  download_speed_static9 > =  30 :
                     count_static9_30_100  + =  1
                 else :
                     count_static9_30  + =  1
         #else:
             #break
     try :
         traffic  =  round ((flow * 1.07 * 8 ) / 300 / 1024 / 1024 ,  2 )
         #traffic1 = round((flow1*1.07)/300/1024/1024, 2)
         #print traffic, traffic1
         #traffic1 = round(flow/sum_time/1024/1024, 2)
         count_success  =  count_200  +  count_300
         response_time  =  round (sum_time / count_success,  2 )
         response_time_source  =  round (sum_time_source / count_success,  2 )
         requests_second  =  round (count_success / 300 ,  2 )
         if  sum_ppsucai_time  = =  0.0 :
             sum_ppsucai_time  =  0.0001
         if  sum_asimgs_time  = =  0.0 :
             sum_asimgs_time  =  0.0001
         #print sum_static9_time
         if  sum_static9_time  = =  0.0 :
             sum_static9_time  =  0.0001
         traffic_ppsucai  =  round (flow_ppsucai / sum_ppsucai_time / 1024 ,  2 )
         traffic_asimgs  =  round (flow_asimgs / sum_asimgs_time / 1024 ,  2 )
         traffic_static9  =  round (flow_static9 / sum_static9_time / 1024 ,  2 )
         #print "flow_static:", flow_static9, "traffic_static9", traffic_static9
         average_bodysize  =  round ((flow / count_success) / 1024 ,  2 )
         percentage_time_1  =  round ( len (list_time_1) / count_success * 100 ,  2 )
         percentage_time_3  =  round ( len (list_time_3) / count_success * 100 ,  2 )
         if  count_sucai  = =  0 :
             count_sucai  =  0.0001
         percentage_sucai_100  =  round (count_sucai_100 / count_sucai * 100 ,  2 )
         percentage_sucai_30_100  =  round (count_sucai_30_100 / count_sucai * 100 ,  2 )
         percentage_sucai_30  =  round (count_sucai_30 / count_sucai * 100 ,  2 )
         if  count_asimgs  = =  0 :
             count_asimgs  =  0.0001
         percentage_asimgs_100  =  round (count_asimgs_100 / count_asimgs * 100 ,  2 )
         percentage_asimgs_30_100  =  round (count_asimgs_30_100 / count_asimgs * 100 ,  2 )
         percentage_asimgs_30  =  round (count_asimgs_30 / count_asimgs * 100 ,  2 )
         #print count_static9
         if  count_static9  = =  0 :
             count_static9  =  0.0001
         percentage_static9_100  =  round (count_static9_100 / count_static9 * 100 ,  2 )
         #print count_static9_100, "100", percentage_static9_100
         percentage_static9_30_100  =  round (count_static9_30_100 / count_static9 * 100 ,  2 )
         #print count_static9_30_100, "30-100", percentage_static9_30_100
         percentage_static9_30  =  round (count_static9_30 / count_static9 * 100 ,  2 )
         #print count_static9_30, "30", percentage_static9_30
         requests_second_sucai  =  round (count_sucai / 300 ,  2 )
         requests_second_asimgs  =  round (count_asimgs / 300 ,  2 )
         requests_second_static9  =  round (count_static9 / 300 ,  2 )
         #print requests_second_static9
         #print count, "this is the count of 2xx_backup:", count_200_backup,"%", round(count_200_backup/count, 4),"this is the count of !2xx_backup:", count_not_200_backup, round(count_not_200_backup/count, 4)
         percentage_200_backup  =  round (count_200_backup / count * 100 ,  2 )
         percentage_not_200_backup  =  round (count_not_200_backup / count * 100 ,  2 )
         return  average_bodysize, response_time, count, count_success,  len (list_ip_403),  len (list_ip_404),  len (list_ip_499),  len (list_ip_500),  len (list_ip_502),  len (list_ip_503), count_200, count_300, requests_second, response_time_source,  len (list_time_1),  len (list_time_3), percentage_time_1, percentage_time_3,count_sucai,percentage_sucai_100, percentage_sucai_30_100, percentage_sucai_30, requests_second_sucai, count_asimgs, percentage_asimgs_100, percentage_asimgs_30_100, percentage_asimgs_30, requests_second_asimgs, traffic_ppsucai, traffic_asimgs, traffic, traffic_static9, count_static9, percentage_static9_100, percentage_static9_30_100, percentage_static9_30, requests_second_static9, percentage_200_backup, percentage_not_200_backup,  len (list_ip_415)
     except :
         return  0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0
def  log_files(pwd):
         log_file_list  =  []
         files  =  os.popen( "ls %s"  %  pwd).readlines()
         for  x  in  files:
                 if  x.strip().endswith( "log" ):
                         log_file_list.append(x.strip())
         return  log_file_list
def  result_dic():
     list  =  average_flow()
     #print list
#   print list
     result  =  {}
     result[ 'average_bodysize' ]  =  list [ 0 ]
     result[ 'response_time' ]  =  list [ 1 ]
     result[ 'sum_count' ]  =  list [ 2 ]
     result[ 'count_success' ]  =  list [ 3 ]
     result[ 'four' ]  =  list [ 4 ]  +  list [ 5 ]  +  list [ 6 ]  +  list [ 39 ]
#   print 'four','=','%s' % list[4],'+','%s' % list[5],'+','%s' % list[6],'+','%s' % list[39], result['four']
     result[ '403' ]  =  list [ 4 ]
#   print '403', result['403']
     result[ '404' ]  =  list [ 5 ]
#   print '404', result['404']
     result[ '499' ]  =  list [ 6 ]
#   print '499', result['499']
     result[ '415' ]  =  list [ 39 ]
#   print '415', result['415']
     result[ 'five' ]  =  list [ 7 ]  +  list [ 8 ]  +  list [ 9 ]
     result[ '500' ]  =  list [ 7 ]
     result[ '502' ]  =  list [ 8 ]
     result[ '503' ]  =  list [ 9 ]
     result[ '200' ]  =  list [ 10 ]
     result[ '300' ]  =  list [ 11 ]
     result[ 'requests_second' ]  =  list [ 12 ]
     result[ 'response_time_source' ]  =  list [ 13 ]
     result[ 'percentage_time_1' ]  =  list [ 16 ]
     result[ 'percentage_time_3' ]  =  list [ 17 ]
     result[ 'count_sucai' ]  =  list [ 18 ]
     result[ 'percentage_sucai_100' ]  =  list [ 19 ]
     result[ 'percentage_sucai_30_100' ]  =  list [ 20 ]
     result[ 'percentage_sucai_30' ]  =  list [ 21 ]
     result[ 'requests_second_sucai' ]  =  list [ 22 ]
     result[ 'count_asimgs' ]  =  list [ 23 ]
     result[ 'percentage_asimgs_100' ]  =  list [ 24 ]
     result[ 'percentage_asimgs_30_100' ]  =  list [ 25 ]
     result[ 'percentage_asimgs_30' ]  =  list [ 26 ]
     result[ 'requests_second_asimgs' ]  =  list [ 27 ]
     result[ 'traffic_ppsucai' ]  =  list [ 28 ]
     result[ 'traffic_asimgs' ]  =  list [ 29 ]
     result[ 'traffic' ]  =  list [ 30 ]
     result[ 'traffic_static9' ]  =  list [ 31 ]
     result[ 'count_static9' ]  =  list [ 32 ]
     result[ 'percentage_static9_100' ]  =  list [ 33 ]
     result[ 'percentage_static9_30_100' ]  =  list [ 34 ]
     result[ 'percentage_static9_30' ]  =  list [ 35 ]
     result[ 'requests_second_static9' ]  =  list [ 36 ]
     result[ 'percentage_200_backup' ]  =  list [ 37 ]
     result[ 'percentage_not_200_backup' ]  =  list [ 38 ]
     result[ 'all' ]  =  list
     return  result
def  Writelog(msg):
     o  =  open ( "/log/nginx/qos_result_new" + ".log" , "aw" )
     o.write(time.strftime( "%Y-%m-%d %H:%M:%S" , time.localtime())  +  ":"  +  msg  +  "\n" )
     o.close()
def  WriteTmpInfo(msg):
     o  =  open ( "/tmp/webcdnqos_result" + ".txt" , "aw+" )
     o.write(msg + "\n" )
     o.close()
def  WriteURLInfo(msg):
     today  =  datetime.date.today()
     o  =  open ( "/tmp/webcdnqos_url_%s"  %  today.strftime( '%Y-%m-%d' )  +  ".log" , "aw" )
#   o.write(time.strftime("%Y-%m-%d %H:%M:%S", time.localtime()) + "    " +msg+"\n")
     o.write(msg)
     o.close()
if  __name__  = =  "__main__" :
     if  len (sys.argv) <  2 :
         show_usage()
         os.popen( "rm -f /tmp/exist.txt" )
             sys.exit( 1 )
     else :
         if  os.path.isfile( "/tmp/exist.txt" ):
             sys.exit( 1 )
         else :
             os.popen( "echo 'hello' > /tmp/exist.txt" )
             result_key  =  sys.argv[ 1 ]
             status  =  result_dic()
             os.popen( ">/tmp/webcdnqos_result.txt" )
             print  status[result_key]
             Writelog( str (status[result_key]))
             for  i  in  status.keys():
                 WriteTmpInfo( str (i) + "=" + str (status[i]))
             os.popen( "rm -f /tmp/exist.txt" )

本文转自菜菜光 51CTO博客，原文链接：http://blog.51cto.com/caiguangguang/1371902，如需转载请自行联系原作者